Olympians Who Set a European Record in Long Course Swimming (677)

Athlete	Nation(s)	Sport(s)	Era	Notes
Oszkár Abay-Nemes	HUN	SWM	1936	4×200 m freestyle relay – 23 August 1936 - 24 September 1946: 9:10.8 (23 August 1936; Budapest, HUN)
Viktor Aboimov	KAZ URS	SWM	1972	4×100 m freestyle relay – 28 August 1972 - 14 March 1975: 3:29.72 (28 August 1972; München, FRG)
Becky Adlington	GBR	SWM	2008—2012	800 m freestyle – 14 August 2008 - present: 8:18.06 (14 August 2008; Beijing, CHN), 8:14.10 (16 August 2008; Beijing, CHN); 4×200 m freestyle relay – 30 July 2009 - present: 7:49.04 (30 July 2009; Roma, ITA), 7:45.51 (31 July 2009; Roma, ITA)
Franziska van Almsick	GER	SWM	1992—2004	100 m freestyle – 3 August 1993 - 28 May 2000: 54.57 (3 August 1993; Sheffield, GBR); 200 m freestyle – 6 September 1994 - 27 March 2007: 1:56.78 (6 September 1994; Roma, ITA), 1:56.64 (3 August 2002; Berlin, GER); 4×100 m freestyle relay – 29 July 2002 - 31 July 2006: 3:36.00 (29 July 2002; Berlin, GER); 4×100 m medley relay – 4 August 2002 - 24 March 2008: 4:01.54 (4 August 2002; Berlin, GER)
Therèse Alshammar	SWE	SWM	1996—2016	50 m butterfly – 13 June 2007 - 19 April 2009 and 31 July 2009 - 5 July 2014: 25.46 (13 June 2007; Barcelona, ESP), 25.07 (31 July 2009; Roma, ITA)
Melki Álvarez	ESP	SWM	2008	4×100 m medley relay – 1 July 2008 - 15 August 2008: 3:34.22 (1 July 2008; Pescara, ITA)
Linda Amos	GBR	SWM	1964	4×100 m freestyle relay – 24 August 1962 - 25 August 1962: 4:17.6 (24 August 1962; Leipzig, GDR)
Akhmed Anarbayev	KGZ URS	SWM	1968	4×200 m freestyle relay – 24 August 1969 - 12 September 1970: 7:54.5 (24 August 1969; Würzburg, FRG)
Lilli Andersen	DEN	SWM	1932	800 m freestyle – 26 July 1933 - 3 July 1936: 12:07.8 (26 July 1933; København, DEN)
Inger Andersson	SWE	SWM	1972	4×100 m freestyle relay – 1 September 1979 - 7 March 1980: 3:26.34 (1 September 1979; Tokyo, JPN)
Robert Andersson	SWE	DIV/SWM/WPO	1906—1920	200 m breaststroke – 18 April 1909 - 2 October 1910: 3:08.3 (18 April 1909; Stockholm, SWE)
Gennady Androsov	RUS URS	SWM	1956—1960	400 m medley – 10 March 1957 - 17 March 1957: 5:09.4 (10 March 1957; Lviv, URS)
Veronika Andrusenko-Popova	ROC RUS	SWM	2012—2020	4×100 m medley relay – 30 July 2017 - present: 3:53.38 (30 July 2017; Budapest, HUN)
István Angyal	HUN	SWM	1936	4×200 m freestyle relay – 14 July 1935 - 23 August 1936: 9:14.8 (14 July 1935; Budapest, HUN)
Hannelore Anke	GDR	SWM	1972—1976	100 m breaststroke – 22 July 1976 - 22 August 1978: 1:11.11 (22 July 1976; Montréal, CAN), 1:10.86 (22 July 1976; Montréal, CAN); 200 m breaststroke – 13 July 1973 - 5 September 1973: 2:40.28 (13 July 1973; Berlin, FRG); 4×100 m medley relay – 18 July 1976 - 20 July 1980: 4:07.95 (18 July 1976; Montréal, CAN)
Josette Arène	FRA	SWM	1948—1952	4×100 m medley relay – 16 August 1954 - 27 November 1954: 5:06.2 (16 August 1954; Marseille, FRA)
Eva Arndt-Riise	DEN	SWM	1936—1948	4×100 m freestyle relay – 7 August 1938 - 27 April 1952: 4:27.6 (7 August 1938; København, DEN)
Pär Arvidsson	SWE	SWM	1976—1980	100 m butterfly – 3 September 1979 - 1 July 1982: 54.33 (3 September 1979; Tokyo, JPN), 54.15 (11 April 1980; Austin, USA)
Svetlana Babanina	URS UZB	SWM	1964—1968	100 m breaststroke – 3 September 1964 - 17 July 1966: 1:17.2 (3 September 1964; Moskva, URS), 1:16.5 (11 May 1965; Tashkent, URS); 4×100 m medley relay – 16 October 1964 - 18 October 1964: 4:39.1 tied (16 October 1964; Tokyo, JPN)
Charles Babey (DNS)	FRA	SWM	1948	4×100 m freestyle relay – 15 December 1946 - 20 August 1949: 3:58.4 (15 December 1946; Toulouse, FRA); 4×200 m freestyle relay – 12 September 1947 - 14 September 1947: 9:03.4 (12 September 1947; Monte Carlo, MON)
Lev Balandin	RUS URS	SWM	1952—1956	4×100 m freestyle relay – 23 January 1954 - 1 May 1957: 3:50.4 (23 January 1954; Moskva, URS), 3:49.3 (9 March 1954; Stockholm, SWE), 3:48.4 (3 November 1956; Moskva, URS); 4×100 m medley relay – 13 May 1953 - 5 August 1954 and 14 August 1956 - 1 May 1957: 4:24.8 (13 May 1953; Moskva, URS), 4:21.3 (26 January 1954; Moskva, URS), 4:19.0 (24 February 1954; Stockholm, SWE), 4:14.8 (14 August 1956; Moskva, URS)
Jochen Balke	GER	SWM	1936	100 m breaststroke – 12 November 1938 - 21 June 1941: 1:09.5 (12 November 1938; Bremen, GER); 200 m breaststroke – 2 March 1938 - 6 July 1941: 2:38.3 (2 March 1938; Hamburg, GER), 2:37.8 (29 October 1938; Hannover, GER), 2:37.4 (25 March 1939; Bremen, GER)
Coralie Balmy	FRA	SWM	2008—2016	4×200 m freestyle relay – 13 August 2008 - 14 August 2008: 7:50.37 (13 August 2008; Beijing, CHN)
István Bárány	HUN	SWM	1924—1932	100 m freestyle – 11 August 1928 - 20 August 1935: 59.8 (11 August 1928; Amsterdam, NED), 58.6 (29 October 1929; München, GER), 58.4 (12 May 1931; Budapest, HUN); 200 m freestyle – 23 March 1930 - 9 June 1930: 2:16.0 (23 March 1930; Brugge, BEL); 4×200 m freestyle relay – 7 September 1930 - 14 July 1935: 9:30.6 (7 September 1930; Budapest, HUN)
Leonid Barbiyer	URS UKR	SWM	1960	100 m backstroke – 11 September 1961 - 30 August 1963: 1:02.1 (11 September 1961; Moskva, URS); 200 m backstroke – 4 September 1961 - 23 July 1962: 2:16.5 (4 September 1961; Lviv, URS); 4×100 m medley relay – 6 September 1958 - 18 June 1960 and 11 September 1961 - 24 April 1962: 4:16.5 (6 September 1958; Budapest, HUN), 4:11.2 (11 September 1961; Moskva, URS)
Marie Baron	NED	DIV/SWM	1924—1928	200 m breaststroke – 24 October 1926 - 20 August 1927 and 22 April 1928 - 15 July 1928: 3:18.4 (24 October 1926; Bruxelles, BEL), 3:12.8 (22 April 1928; Rotterdam, NED)
András Baronyi	HUN	ATH/SWM	1908—1912	100 m backstroke – 23 August 1908 - 2 October 1910 and 17 July 1911 - 6 April 1912: 1:24.0 (23 August 1908; Budapest, HUN), 1:18.8 (17 July 1911; Budapest, HUN); 100 m breaststroke – 17 November 1907 - 30 September 1909: 1:24.0 (17 November 1907; Wien, AUT)
Iurie Başcatov	MDA URS EUN	SWM	1988—1992	4×100 m freestyle relay – 23 September 1988 - 23 August 1991: 3:18.33 (23 September 1988; Seoul, KOR)
Walter Bathe	GER	SWM	1912	100 m breaststroke – 2 October 1910 - 24 May 1921: 1:18.4 (2 October 1910; Magdeburg, GER), 1:17.8 (18 December 1910; Budapest, HUN)
Sydney Battersby	GBR	SWM	1908—1912	400 m freestyle – 21 September 1911 - 21 April 1912: 5:35.8 (21 September 1911; London, GBR)
Andrea Beccari	ITA	SWM	2000—2004	4×200 m freestyle relay – 27 July 2001 - 5 August 2006: 7:10.86 (27 July 2001; Fukuoka, JPN)
Roswitha Beier	GDR	SWM	1972	100 m butterfly – 1 September 1972 - 14 April 1973: 1:03.61 (1 September 1972; München, FRG); 4×100 m medley relay – 6 August 1961 - 24 April 1962 and 3 September 1972 - 4 September 1973: 4:46.4 (6 August 1961; Budapest, HUN), 4:27.58 (3 September 1972; München, FRG), 4:24.91 (3 September 1972; München, FRG), 4:21.70 (4 September 1973; Beograd, YUG)
Semyon Belits-Geyman	RUS URS	SWM	1964—1968	400 m freestyle – 16 July 1966 - 25 August 1966: 4:14.1 (16 July 1966; Moskva, URS); 800 m freestyle – 29 October 1964 - 18 July 1965 and 1 August 1965 - 5 July 1967: 9:05.4 (29 October 1964; Moskva, URS), 8:58.7 (1 August 1965; Kharkov, URS), 8:47.4 (3 August 1966; Kharkov, URS); 1500 m freestyle – 1 August 1965 - 18 August 1968: 17:01.9 (1 August 1965; Kharkov, URS), 16:58.5 (27 August 1966; Utrecht, NED), 16:52.7 (3 August 1967; Moskva, URS); 4×100 m freestyle relay – 21 September 1967 - 10 September 1970: 3:35.6 (21 September 1967; Tbilisi, URS), 3:34.2 (17 October 1968; Ciudad de México, MEX); 4×200 m freestyle relay – 24 August 1966 - 15 July 1967 and 18 April 1969 - 12 September 1970: 8:00.2 (24 August 1966; Utrecht, NED), 7:58.5 (18 April 1969; Magdeburg, GDR), 7:54.5 (24 August 1969; Würzburg, FRG)
Anders Bellbring	SWE	SWM	1972—1976	1500 m freestyle – 5 August 1973 - 8 September 1973: 16:10.38 (5 August 1973; Norrköping, SWE)
Marco Belotti	ITA	SWM	2008—2016	4×200 m freestyle relay – 12 August 2008 - 13 August 2008: 7:07.84 (12 August 2008; Beijing, CHN)
Daniela Beneck	ITA	SWM	1960—1964	200 m freestyle – 27 July 1965 - 11 August 1965: 2:18.0 (27 July 1965; Roma, ITA)
Lars-Erik Bengtsson	SWE	SWM	1960	4×200 m freestyle relay – 22 August 1962 - 17 August 1963: 8:18.4 (22 August 1962; Leipzig, GDR)
Vladimir Berezin	RUS URS	SWM	1964	4×100 m freestyle relay – 22 March 1966 - 26 August 1966: 3:37.0 (22 March 1966; Moskva, URS)
Alain Bernard	FRA	SWM	2008—2012	50 m freestyle – 23 March 2008 - 26 April 2008: 21.50 (23 March 2008; Eindhoven, NED); 100 m freestyle – 21 March 2008 - 24 April 2009 and 30 July 2009 - present: 47.60 (21 March 2008; Eindhoven, NED), 47.50 (22 March 2008; Eindhoven, NED), 47.20 (13 August 2008; Beijing, CHN), 47.12 (30 July 2009; Roma, ITA); 4×100 m freestyle relay – 19 June 2008 - 10 August 2008 and 11 August 2008 - present: 3:12.54 (19 June 2008; Paris, FRA), 3:08.32 (11 August 2008; Beijing, CHN)
Jo Bernardo	FRA	SWM	1948—1952	4×200 m freestyle relay – 2 August 1951 - 4 November 1956: 8:33.0 (2 August 1951; Marseille, FRA)
Jens-Peter Berndt	FRG	SWM	1988	400 m medley – 23 May 1984 - 19 August 1987: 4:19.61 (23 May 1984; Magdeburg, GDR), 4:18.29 (20 August 1984; Moskva, URS)
Toos Beumer	NED	SWM	1964—1968	4×100 m freestyle relay – 15 October 1964 - 27 August 1966: 4:12.0 (15 October 1964; Tokyo, JPN); 4×100 m medley relay – 25 August 1966 - 20 September 1967: 4:36.4 (25 August 1966; Utrecht, NED)
Ilaria Bianchi	ITA	SWM	2008—2020	4×100 m medley mixed relay – 19 August 2014 - 19 August 2014: 3:48.57 (19 August 2014; Berlin, GER)
Arno Bieberstein	GER	SWM	1908	100 m backstroke – 17 July 1908 - 23 August 1908: 1:24.6 (17 July 1908; London, GBR)
Paul Biedermann	GER	SWM	2008—2016	200 m freestyle – 14 June 2009 - present: 1:44.88 (14 June 2009; Monte Carlo, MON), 1:44.71 (28 June 2009; Berlin, GER), 1:43.65 (27 July 2009; Roma, ITA), 1:42.00 (28 July 2009; Roma, ITA); 400 m freestyle – 26 July 2009 - present: 3:43.01 (26 July 2009; Roma, ITA), 3:40.07 (26 July 2009; Roma, ITA); 4×100 m medley relay – 2 August 2009 - 28 July 2019: 3:29.48 (2 August 2009; Roma, ITA), 3:28.58 (2 August 2009; Roma, ITA)
Klenie Bimolt	NED	SWM	1964—1968	100 m breaststroke – 8 August 1964 - 3 September 1964: 1:18.0 (8 August 1964; The Hague, NED); 4×100 m medley relay – 28 June 1964 - 25 August 1966 and 20 April 1968 - 23 August 1969: 4:39.1 (28 June 1964; Groningen, NED), 4:37.0 (18 October 1964; Tokyo, JPN), 4:35.5 (20 April 1968; Stockholm, SWE)
Ian Black	GBR	SWM	1960	200 m freestyle – 29 April 1962 - 20 May 1962: 2:02.6 (29 April 1962; Cardiff, GBR); 400 m freestyle – 23 July 1958 - 18 May 1964: 4:28.5 (23 July 1958; Cardiff, GBR), 4:28.4 (20 August 1958; Blackpool, GBR), 4:27.5 (20 April 1960; Blackpool, GBR), 4:21.9 (30 August 1960; Roma, ITA), 4:21.8 (31 August 1960; Roma, ITA); 800 m freestyle – 31 July 1958 - 29 July 1959: 9:25.5 (31 July 1958; New Brighton, GBR); 1500 m freestyle – 31 July 1958 - 18 June 1960: 18:06.2 (31 July 1958; New Brighton, GBR), 18:05.8 (6 September 1958; Budapest, HUN); 200 m butterfly – 9 April 1960 - 24 April 1960: 2:18.7 (9 April 1960; Cardiff, GBR); 400 m medley – 6 June 1959 - 15 April 1962: 5:08.8 (6 June 1959; Cardiff, GBR); 4×200 m freestyle relay – 29 August 1960 - 21 August 1962: 8:26.9 (29 August 1960; Roma, ITA)
Pernille Blume	DEN	SWM	2012—2020	4×100 m medley relay – 24 August 2014 - 9 August 2015 and 3 August 2016 - 30 July 2017: 3:55.62 (24 August 2014; Berlin, GER), 3:55.01 (3 August 2016; Rio de Janeiro, BRA)
Andrey Bogdanov	RUS URS	SWM	1976	4×100 m freestyle relay – 12 March 1976 - 16 August 1977: 3:26.60 (12 March 1976; Tallinn, URS); 4×200 m freestyle relay – 13 March 1976 - 8 March 1980: 7:34.70 (13 March 1976; Tallinn, URS), 7:27.97 (21 July 1976; Montréal, CAN)
Yuliya Bogdanova	RUS URS	SWM	1980	100 m breaststroke – 22 August 1978 - 27 May 1980: 1:10.31 (22 August 1978; West Berlin, FRG); 200 m breaststroke – 7 April 1978 - 24 August 1978: 2:33.32 (7 April 1978; Leningrad, URS)
Tanya Bogomilova-Dangalakova	BUL	SWM	1980—1988	50 m breaststroke – 21 August 1986 - 21 August 1987: 32.05 (21 August 1986; Madrid, ESP)
Jean Boiteux	FRA	SWM	1952—1960	400 m freestyle – 10 July 1951 - 27 March 1956 and 17 August 1956 - 1 May 1957: 4:33.3 (10 July 1951; Marseille, FRA), 4:32.6 (26 June 1952; Toulouse, FRA), 4:30.7 (30 July 1952; Helsinki, FIN), 4:29.0 (17 August 1956; Marseille, FRA); 800 m freestyle – 9 July 1952 - 2 September 1957: 9:38.2 (9 July 1952; Toulouse, FRA); 1500 m freestyle – 20 June 1952 - 6 May 1956 and 10 August 1956 - 4 September 1957: 18:40.8 (20 June 1952; Toulouse, FRA), 18:25.2 (10 August 1956; Paris, FRA); 4×200 m freestyle relay – 2 August 1951 - 4 November 1956: 8:33.0 (2 August 1951; Marseille, FRA)
Arne Borg	SWE	SWM	1920—1928	100 m freestyle – 4 September 1927 - 11 August 1928: 60.0 (4 September 1927; Bologna, ITA); 200 m freestyle – 12 December 1924 - 23 March 1930: 2:16.6 (12 December 1924; Stockholm, SWE); 400 m freestyle – 9 April 1922 - 16 April 1931: 5:11.8 (9 April 1922; Stockholm, SWE), 4:54.7 (9 December 1924; Stockholm, SWE), 4:50.3 (11 September 1925; Stockholm, SWE); 1500 m freestyle – 8 July 1923 - 6 July 1951: 21:35.3 (8 July 1923; Göteborg, SWE), 21:15.0 (30 January 1924; Sydney, AUS), 21:11.4 (3 July 1924; Paris, FRA), 20:04.4 (18 August 1926; Budapest, HUN), 19:07.2 (2 September 1927; Bologna, ITA)
Björn Borg	SWE	SWM	1936	200 m freestyle – 17 April 1938 - 15 September 1945: 2:11.9 (17 April 1938; Århus, DEN), 2:10.8 (1 February 1942; Berlin, GER); 200 m backstroke – 14 September 1939 - 3 June 1945: 2:26.9 (14 September 1939; Norrköping, SWE)
Nel Bos	NED	SWM	1968	4×100 m medley relay – 20 April 1968 - 23 August 1969: 4:35.5 (20 April 1968; Stockholm, SWE)
Paolo Bossini	ITA	SWM	2004—2008	200 m breaststroke – 12 August 2008 - 12 August 2008: 2:08.98 (12 August 2008; Beijing, CHN)
Fréd Bousquet	FRA	SWM	2000—2016	50 m freestyle – 26 April 2009 - present: 20.94 (26 April 2009; Montpellier, FRA); 100 m freestyle – 24 April 2009 - 30 July 2009: 47.15 (24 April 2009; Montpellier, FRA); 4×100 m freestyle relay – 19 June 2008 - present: 3:12.54 (19 June 2008; Paris, FRA), 3:12.36 (10 August 2008; Beijing, CHN), 3:08.32 (11 August 2008; Beijing, CHN)
Gilbert Bozon	FRA	SWM	1952—1956	100 m backstroke – 14 March 1952 - 1 May 1957: 1:04.3 (14 March 1952; Troyes, FRA), 1:03.6 (25 March 1952; Troyes, FRA), 1:03.3 (26 December 1952; Troyes, FRA), 1:02.1 (27 February 1955; Troyes, FRA); 200 m backstroke – 29 April 1952 - 1 May 1957: 2:21.0 (29 April 1952; Troyes, FRA), 2:20.7 (1 June 1952; Isle d'Adam, FRA), 2:19.7 (24 April 1953; Troyes, FRA), 2:18.3 (26 June 1953; Al-Jaza'ir, ALG); 3×100 m medley relay – 25 March 1952 - 31 December 1952: 3:09.6 (25 March 1952; Troyes, FRA); 4×100 m medley relay – 22 March 1953 - 1 April 1953: 4:32.2 (22 March 1953; Charleroi, BEL)
Emiliano Brembilla	ITA	SWM	1996—2008	4×200 m freestyle relay – 27 July 2001 - 5 August 2006 and 12 August 2008 - 13 August 2008: 7:10.86 (27 July 2001; Fukuoka, JPN), 7:07.84 (12 August 2008; Beijing, CHN)
Kurt Bretting	GER	SWM	1912	100 m freestyle – 6 April 1912 - 4 September 1927: 1:02.4 (6 April 1912; Bruxelles, BEL)
Pyotr Breus	RUS URS	WPO	1956	4×100 m freestyle relay – 23 January 1954 - 3 November 1956: 3:50.4 (23 January 1954; Moskva, URS), 3:49.3 (9 March 1954; Stockholm, SWE)
Serhiy Breus	UKR	SWM	2008	50 m butterfly – 25 July 2005 - 18 March 2008: 23.38 (25 July 2005; Montréal, CAN)
Enith Brigitha	NED	SWM	1972—1976	200 m freestyle – 25 July 1974 - 22 August 1974: 2:05.14 (25 July 1974; Utrecht, NED); 100 m backstroke – 15 April 1973 - 21 July 1973: 1:06.20 (15 April 1973; Dortmund, FRG), 1:06.12 (14 July 1973; Meppel, NED); 200 m backstroke – 4 September 1972 and 26 April 1974 - 7 July 1974: 2:23.7 (4 September 1972; München, FRG), 2:20.27 (26 April 1974; Coventry, GBR); 4×100 m medley relay – 18 April 1972 - 3 September 1972: 4:30.0 (18 April 1972; Hannover, FRG)
Annika Bruhn	GER	SWM	2012—2020	4×100 m freestyle mixed relay – 4 August 2018 - present: 7:28.43 (4 August 2018; Glasgow, GBR)
Daniëlle de Bruijn	NED	WPO	2000—2008	4×100 m freestyle relay – 16 September 2000 - 23 July 2001: 3:39.83 (16 September 2000; Sydney, AUS)
Inge de Bruijn	NED	SWM	1992—2004	50 m freestyle – 19 July 1998 - 24 March 2008: 25.06 (19 July 1998; Oakmont, USA), 25.01 (8 August 1998; Sao Paolo, BRA), 24.94 (14 June 1999; Rio de Janeiro, BRA), 24.88 (18 June 1999; Amersfoort, NED), 24.84 (31 July 1999; İstanbul, TUR), 24.51 (27 May 2000; Sheffield, GBR), 24.48 (4 June 2000; Amsterdam, NED), 24.39 (10 June 2000; Rio de Janeiro, BRA), 24.13 (22 September 2000; Sydney, AUS); 100 m freestyle – 28 May 2000 - 2 August 2006: 53.80 (28 May 2000; Sheffield, GBR), 53.77 (20 September 2000; Sydney, AUS); 50 m butterfly – 20 June 1993 - 1 July 1999 and 20 May 2000 - 30 July 2002: 27.53 (20 June 1993; Amersfoort, NED), 26.54 (18 June 1999; Amersfoort, NED), 25.83 (20 May 2000; Monte Carlo, MON), 25.64 (26 May 2000; Sheffield, GBR); 100 m butterfly – 29 July 1999 - 26 July 2009: 58.92 (29 July 1999; İstanbul, TUR), 58.49 (30 July 1999; İstanbul, TUR), 57.96 (20 May 2000; Monte Carlo, MON), 56.69 (27 May 2000; Sheffield, GBR), 56.64 (22 July 2000; Seattle, USA), 56.61 (17 September 2000; Sydney, AUS)
Rika Bruins	NED	SWM	1952	4×100 m medley relay – 27 November 1954 - 3 September 1955: 5:02.1 (27 November 1954; Rotterdam, NED), 5:00.1 (17 July 1955; Paris, FRA)
Hansje Bunschoten	NED	SWM	1972	400 m freestyle – 15 August 1971 - 2 July 1972: 4:31.7 (15 August 1971; Rotterdam, NED), 4:31.3 (28 August 1971; Bratislava, TCH), 4:31.1 (19 March 1972; Dresden, GDR); 800 m freestyle – 18 March 1972 - 29 June 1972: 9:16.7 (18 March 1972; Dresden, GDR), 9:15.5 (28 June 1972; Utrecht, NED); 1500 m freestyle – 17 June 1972 - 6 July 1972: 17:46.3 (17 June 1972; Bussum, NED)
Vladimir Bure	RUS URS	SWM	1968—1976	100 m freestyle – 14 August 1972 - 25 July 1976: 52.51 (14 August 1972; Moskva, URS), 52.26 (28 August 1972; München, FRG), 51.77 (3 September 1972; München, FRG), 51.36 (26 February 1975; Leningrad, URS), 51.32 (27 July 1975; Cali, COL); 4×100 m freestyle relay – 10 September 1970 - 16 August 1977: 3:32.3 (10 September 1970; Barcelona, ESP), 3:29.72 (28 August 1972; München, FRG), 3:28.89 (14 March 1975; Dresden, GDR), 3:26.60 (12 March 1976; Tallinn, URS); 4×200 m freestyle relay – 18 April 1969 - 12 September 1970, 15 March 1975 - 25 July 1975, and 13 March 1976 - 21 July 1976: 7:58.5 (18 April 1969; Magdeburg, GDR), 7:54.5 (24 August 1969; Würzburg, FRG), 7:39.52 (15 March 1975; Dresden, GDR), 7:34.70 (13 March 1976; Tallinn, URS)
Simon Burnett	GBR	SWM	2004—2012	4×100 m medley relay – 15 August 2008 - 15 August 2008: 3:33.83 (15 August 2008; Beijing, CHN)
Wendy Burrell	GBR	SWM	1968	200 m backstroke – 9 September 1970 - 10 September 1970: 2:26.2 (9 September 1970; Barcelona, ESP)
Antje Buschschulte	GER	SWM	1996—2008	4×100 m freestyle relay – 23 July 2001 - 29 July 2002: 3:39.58 (23 July 2001; Fukuoka, JPN); 4×100 m medley relay – 29 July 2001 - 24 March 2008: 4:03.06 (29 July 2001; Fukuoka, JPN), 4:01.54 (4 August 2002; Berlin, GER)
Cobie Buter	NED	SWM	1968	4×100 m medley relay – 20 April 1968 - 23 August 1969: 4:35.5 (20 April 1968; Stockholm, SWE)
Nataliya Bystrova	RUS URS	SWM	1964	4×100 m medley relay – 16 October 1964 - 18 October 1964: 4:39.1 tied (16 October 1964; Tokyo, JPN)
Novella Calligaris	ITA	SWM	1968—1972	400 m freestyle – 20 July 1971 - 15 August 1971 and 5 July 1972 - 20 August 1974: 4:31.9 (20 July 1971; Bolzano, ITA), 4:29.1 (5 July 1972; Syracuse, ITA), 4:26.7 (25 July 1972; Turin, ITA), 4:24.14 (30 August 1972; München, FRG), 4:22.44 (30 August 1972; München, FRG), 4:21.79 (7 September 1973; Beograd, YUG); 800 m freestyle – 10 August 1969 - 17 August 1969, 4 July 1971 - 3 September 1971, 29 June 1972 - 12 July 1972, and 26 July 1972 - 24 August 1974: 9:38.0 (10 August 1969; Naples, ITA), 9:23.8 (4 July 1971; Roma, ITA), 9:20.9 (20 July 1971; Bolzano, ITA), 9:20.8 (29 August 1971; Udine, ITA), 9:13.4 (29 June 1972; Roma, ITA), 9:06.0 (26 July 1972; Turin, ITA), 9:02.96 (2 September 1972; München, FRG), 8:57.46 (3 September 1972; München, FRG), 8:52.97 (9 September 1973; Beograd, YUG); 1500 m freestyle – 10 September 1969 - 24 June 1971, 10 July 1971 - 17 June 1972, and 6 July 1972 - 10 July 1977: 18:11.6 (10 September 1969; Roma, ITA), 17:51.1 (10 July 1971; Syracuse, ITA), 17:29.3 (6 July 1972; Syracuse, ITA), 17:18.43 (23 June 1973; Santa Clara, USA), 17:04.20 (30 June 1974; Santa Clara, USA); 400 m medley – 31 August 1972 - 19 August 1973: 5:03.99 (31 August 1972; München, FRG)
Alessandro Calvi	ITA	SWM	2004—2008	4×100 m freestyle relay – 25 March 2007 - 19 June 2008: 3:14.04 (25 March 2007; Melbourne, AUS)
Richard Campion	GBR	SWM	1960	4×200 m freestyle relay – 29 August 1960 - 21 August 1962: 8:26.9 (29 August 1960; Roma, ITA)
Pierre Canavèse	FRA	SWM	1964	4×200 m freestyle relay – 6 September 1964 - 24 August 1966: 8:06.8 (6 September 1964; Bagnols, FRA)
Jazz Carlin	GBR	SWM	2016	4×200 m freestyle relay – 30 July 2009 - present: 7:49.04 (30 July 2009; Roma, ITA), 7:45.51 (31 July 2009; Roma, ITA)
Kiki Caron	FRA	SWM	1964—1985	100 m backstroke – 23 June 1963 - 6 September 1970: 1:09.8 (23 June 1963; Paris, FRA), 1:09.6 (14 July 1963; Paris, FRA), 1:09.5 (5 June 1964; Paris, FRA), 1:08.6 (14 June 1964; Paris, FRA), 1:08.5 (13 October 1964; Tokyo, JPN), 1:07.9 (14 October 1964; Tokyo, JPN); 200 m backstroke – 13 July 1963 - 1 September 1963 and 8 September 1963 - 4 April 1970: 2:33.5 (13 July 1963; Paris, FRA), 2:32.1 (8 September 1963; Paris, FRA), 2:29.6 (18 July 1964; Paris, FRA), 2:28.8 (10 July 1965; Paris, FRA), 2:27.9 (16 June 1966; Paris, FRA)
Stéphan Caron	FRA	SWM	1984—1992	100 m freestyle – 21 August 1987 - 17 August 1989 and 4 August 1991 - 28 July 1992: 49.51 (21 August 1987; Strasbourg, FRA), 9.35 (21 August 1987; Strasbourg, FRA), 49.18 (4 August 1991; Milan, ITA)
Jacques Cartonnet	FRA	SWM	1932	100 m breaststroke – 20 May 1932 - 12 November 1938: 1:13.6 (20 May 1932; Paris, FRA), 1:13.0 (8 February 1933; Paris, FRA), 1:12.4 (24 February 1933; Paris, FRA), 1:11.0 (26 April 1935; Paris, FRA), 1:10.6 (6 April 1937; Paris, FRA), 1:09.8 (6 August 1937; Toulouse, FRA); 200 m breaststroke – 28 April 1932 - 16 March 1935 and 4 May 1935 - 11 September 1937: 2:44.6 (28 April 1932; Paris, FRA), 2:42.6 (8 February 1933; Paris, FRA), 2:39.6 (4 May 1935; Paris, FRA)
Nicola Cassio	ITA	SWM	2008	4×200 m freestyle relay – 5 August 2006 - 13 August 2008: 7:09.60 (5 August 2006; Budapest, HUN), 7:07.84 (12 August 2008; Beijing, CHN)
Milorad Čavić	SRB SCG	SWM	2000—2012	50 m butterfly – 18 March 2008 - 5 April 2009: 23.25 (18 March 2008; Eindhoven, NED), 23.11 (19 March 2008; Eindhoven, NED); 100 m butterfly – 14 August 2008 - 4 April 2009 and 31 July 2009 - present: 50.76 (14 August 2008; Beijing, CHN), 50.59 (16 August 2008; Beijing, CHN), 50.01 (31 July 2009; Roma, ITA), 49.95 (1 August 2009; Roma, ITA)
Jane Cederqvist	SWE	SWM	1960	200 m freestyle – 3 May 1961 - 26 August 1961: 2:20.2 (3 May 1961; Haifa, ISR); 400 m freestyle – 3 May 1961 - 18 February 1967: 4:46.9 (3 May 1961; Haifa, ISR); 800 m freestyle – 17 August 1960 - 4 August 1967: 9:55.6 (17 August 1960; Uppsala, SWE); 1500 m freestyle – 8 September 1960 - 27 June 1961: 19:23.6 (8 September 1960; Uppsala, SWE)
Svetlana Chimrova	ROC RUS	SWM	2016—2020	4×100 m medley relay – 30 July 2017 - present: 3:53.38 (30 July 2017; Budapest, HUN)
Valborg Christensen	DEN	SWM	1936	100 m breaststroke – 8 March 1936 - 13 March 1936: 1:22.8 (8 March 1936; Düsseldorf, GER)
Robert Christophe	FRA	SWM	1956—1964	100 m backstroke – 14 June 1958 - 11 September 1961: 1:02.9 (14 June 1958; Blackpool, GBR), 1:02.2 (12 July 1959; Paris, FRA); 4×100 m freestyle relay – 10 August 1962 - 31 August 1965: 3:42.5 (10 August 1962; Thionville, FRA), 3:39.2 (13 September 1964; Budapest, HUN); 4×200 m freestyle relay – 21 August 1962 - 22 August 1962: 8:25.8 (21 August 1962; Leipzig, GDR)
Anton Chupkov	ROC RUS	SWM	2014—2020	200 m breaststroke – 27 July 2017 - present: 2:07.14 (27 July 2017; Budapest, HUN), 2:06.96 (28 July 2017; Budapest, HUN), 2:06.80 (6 August 2018; Glasgow, GBR); 4×100 m medley mixed relay – 12 July 2014 - 19 August 2014: 3:49.05 (12 July 2014; Dordrecht, NED)
Federico Colbertaldo	ITA	SWM	2008	800 m freestyle – 28 July 2009 - 8 April 2014: 7:44.29 (28 July 2009; Roma, ITA), 7:43.84 (29 July 2009; Roma, ITA)
Michelle Coleman	SWE	SWM	2012—2020	4×100 m medley relay – 9 August 2015 - 3 August 2016: 3:55.24 (9 August 2015; Kazan, RUS)
Chris Cook	GBR	SWM	2004—2008	4×100 m medley relay – 15 August 2008 - 15 August 2008: 3:33.83 (15 August 2008; Beijing, CHN)
Joyce Cooper	GBR	SWM	1928—1932	100 m freestyle – 7 January 1931 - 30 May 1931: 1:10.0 (7 January 1931; Paris, FRA)
Tamara Costache	ROU	SWM	1988	50 m freestyle – 14 June 1986 - 11 September 1994: 25.50 (14 June 1986; Bucharest, ROU), 25.34 (14 June 1986; Bucharest, ROU), 25.31 (1 August 1986; Sofia, BUL), 25.28 (23 August 1986; Madrid, ESP)
Céline Couderc	FRA	SWM	2004—2008	4×200 m freestyle relay – 13 August 2008 - 14 August 2008: 7:50.37 (13 August 2008; Beijing, CHN)
Félicien Courbet	BEL	SWM/WPO	1908—1920	100 m breaststroke – 30 September 1909 - 12 June 1910: 1:22.6 (30 September 1909; Bruxelles, BEL); 200 m breaststroke – 2 October 1910 - 28 July 1914: 3:00.8 (2 October 1910; Schaerbeck, BEL)
Percy Courtman	GBR	SWM	1908—1912	200 m breaststroke – 28 July 1914 - 12 November 1922: 2:56.6 (28 July 1914; Garston, GBR)
László Cseh	HUN	SWM	2004—2020	200 m butterfly – 12 August 2008 - 12 August 2008 and 13 August 2008 - 24 July 2019: 1:54.35 (12 August 2008; Beijing, CHN), 1:52.7 (13 August 2008; Beijing, CHN); 200 m medley – 28 July 2005 - present: 1:57.61 (28 July 2005; Montréal, CAN), 1:56.92 (29 March 2007; Melbourne, AUS), 1:56.52 (15 August 2008; Beijing, CHN), 1:56.34 (29 July 2009; Roma, ITA), 1:55.18 (29 July 2009; Roma, ITA); 400 m medley – 27 July 2003 - present: 4:10.79 (27 July 2003; Barcelona, ESP), 4:10.10 (7 June 2005; Canet-en-Roussillon, FRA), 4:09.63 (31 July 2005; Montréal, CAN), 4:09.59 (24 March 2008; Eindhoven, NED), 4:07.96 (14 June 2008; Canet-en-Roussillon, FRA), 4:06.16 (10 August 2008; Beijing, CHN)
Ferenc Csík	HUN	SWM	1936	100 m freestyle – 20 August 1935 - 26 April 1936: 57.8 (20 August 1935; Budapest, HUN); 4×100 m freestyle relay – 26 June 1937 - 5 March 1938 and 14 July 1938 - 25 March 1939: 4:10.2 (26 June 1937; Budapest, HUN), 4:06.6 (15 August 1937; Budapest, HUN), 4:02.0 (14 July 1938; Budapest, HUN); 4×200 m freestyle relay – 14 July 1935 - 24 September 1946: 9:14.8 (14 July 1935; Budapest, HUN), 9:10.8 (23 August 1936; Budapest, HUN)
György Csordás	HUN	SWM	1948—1956	800 m freestyle – 9 June 1951 - 9 July 1952: 9:50.2 (9 June 1951; Budapest, HUN); 1500 m freestyle – 6 July 1951 - 20 June 1952: 18:49.6 (6 July 1951; Budapest, HUN); 4×200 m freestyle relay – 13 May 1951 - 2 August 1951: 8:45.9 (13 May 1951; Moskva, URS)
Jean-Pascal Curtillet	FRA	SWM	1960—1964	4×100 m freestyle relay – 10 August 1962 - 31 August 1965: 3:42.5 (10 August 1962; Thionville, FRA), 3:39.2 (13 September 1964; Budapest, HUN); 4×200 m freestyle relay – 6 September 1964 - 24 August 1966: 8:06.8 (6 September 1964; Bagnols, FRA)
Daisy Curwen	GBR	SWM	1912	100 m freestyle – 29 September 1911 - 15 November 1925: 1:24.6 (29 September 1911; Liverpool, GBR), 1:20.6 (10 June 1912; Birkenhead, GBR)
Sandra Dahlmann	FRG	SWM	1984	4×100 m freestyle relay – 23 July 2001 - 29 July 2002: 3:39.58 (23 July 2001; Fukuoka, JPN)
Petra Dallmann	GER	SWM	2004—2008	4×100 m freestyle relay – 29 July 2002 - 18 March 2008: 3:36.00 (29 July 2002; Berlin, GER), 3:35.22 (31 July 2006; Budapest, HUN); 4×200 m freestyle relay – 3 August 2006 - 13 August 2008: 7:50.82 (3 August 2006; Budapest, HUN)
Tamás Darnyi	HUN	SWM	1988—1992	200 m medley – 23 August 1986 - 11 September 1994: 2:01.57 (23 August 1986; Madrid, ESP), 2:00.56 (23 August 1987; Strasbourg, FRA), 2:00.17 (25 September 1988; Seoul, KOR), 1:59.36 (13 January 1991; Perth, FRA); 400 m medley – 19 August 1987 - 27 July 2003: 4:15.42 (19 August 1987; Strasbourg, FRA), 4:14.75 (21 September 1988; Seoul, KOR), 4:12.36 (8 January 1991; Perth, FRA)
Uwe Daßler	GDR	SWM	1988	400 m freestyle – 23 September 1988 - 29 July 1992: 3:46.95 (23 September 1988; Seoul, KOR)
Dave Davies	GBR	OWS/SWM	2004—2012	1500 m freestyle – 21 August 2004 - 1 April 2007: 14:45.95 (21 August 2004; Athina, GRE)
Georgia Davies	GBR	SWM	2012—2016	50 m backstroke – 4 August 2018 - 10 April 2021: 27.21 (4 August 2018; Glasgow, GBR); 4×100 m medley mixed relay – 6 August 2018 - 20 May 2021: 3:40.18 (6 August 2018; Glasgow, GBR)
Fred Deburghgraeve	BEL	SWM	1992—1996	100 m breaststroke – 20 July 1996 - 15 June 2000: 1:00.60 (20 July 1996; Atlanta, USA)
Inge Dekker	NED	SWM	2004—2016	4×100 m freestyle relay – 18 March 2008 - present: 3:33.62 (18 March 2008; Eindhoven, NED), 3:31.72 (26 July 2009; Roma, ITA)
Willy den Ouden	NED	SWM	1932—1936	100 m freestyle – 7 August 1932 - 3 March 1956: 1:07.6 (7 August 1932; Los Angeles, USA), 1:06.0 (9 July 1933; Antwerpen, BEL), 1:05.4 (24 February 1934; Amsterdam, NED), 1:04.8 (15 April 1934; Rotterdam, GBR), 1:04.6 (27 February 1936; Amsterdam, NED); 200 m freestyle – 3 May 1933 - 26 February 1938: 2:28.6 (3 May 1933; Dundee, GBR), 2:27.6 (5 May 1934; Rotterdam, NED), 2:25.3 (8 September 1935; København, DEN); 400 m freestyle – 12 July 1934 - 10 February 1937: 5:16.0 (12 July 1934; Rotterdam, NED); 4×100 m freestyle relay – 12 August 1932 - 8 February 1938: 4:47.5 (12 August 1932; Los Angeles, USA), 4:43.0 (12 November 1933; Amsterdam, NED), 4:41.2 (28 March 1934; Rotterdam, NED), 4:33.3 (14 April 1934; Rotterdam, NED), 4:32.8 (24 May 1936; Rotterdam, NED)
Fritz Dennerlein	ITA	SWM/WPO	1956—1964	100 m butterfly – 12 July 1959 - 11 March 1961: 1:01.8 (12 July 1959; Paris, FRA); 200 m butterfly – 14 July 1959 - 9 April 1960, 24 April 1960 - 22 July 1962, and 23 August 1962 - 18 May 1964: 2:19.5 (14 July 1959; Paris, FRA), 2:18.0 (24 April 1960; Roma, ITA), 2:16.0 (2 September 1960; Roma, ITA), 2:12.6 (23 August 1962; Monte Carlo, MON)
Gabriele Detti	ITA	SWM	2012—2020	800 m freestyle – 8 April 2014 - 5 August 2015 and 26 July 2017 - 24 July 2019: 7:42.74 (8 April 2014; Riccione, ITA), 7:40.77 (26 July 2017; Budapest, HUN)
Tatyana Devyatova	URS UKR	SWM	1964—1968	200 m medley – 13 August 1966 - 4 March 1967: 2:33.9 (13 August 1966; Moskva, URS); 4×100 m medley relay – 16 October 1964 - 18 October 1964 and 20 September 1967 - 20 April 1968: 4:39.1 tied (16 October 1964; Tokyo, JPN), 4:35.7 (20 September 1967; Tbilisi, URS)
Ines Diers	GDR	SWM	1980	400 m freestyle – 22 July 1980 - 17 June 1983: 4:08.76 (22 July 1980; Moskva, URS), 4:08.58 (9 September 1981; Split, YUG); 800 m freestyle – 27 July 1980 - 1 April 1983: 8:32.55 (27 July 1980; Moskva, URS); 1500 m freestyle – 27 August 1981 - 5 January 1984: 16:27.89 (27 August 1981; Ost-Berlin, GDR); 4×100 m freestyle relay – 27 July 1980 - 21 August 1984: 3:42.71 (27 July 1980; Moskva, URS)
Jürgen Dietze	GDR GER	SWM	1960—1964	4×100 m medley relay – 21 August 1962 - 28 September 1963: 4:09.0 (21 August 1962; Leipzig, GDR)
Gyula Dobay	HUN	SWM	1956—1964	100 m freestyle – 31 July 1960 - 9 August 1961: 55.8 (31 July 1960; Budapest, HUN), 55.7 (18 September 1960; Budapest, HUN); 4×100 m freestyle relay – 18 September 1960 - 24 May 1962: 3:46.9 (18 September 1960; Budapest, HUN)
Rini Dobber	NED	SWM	1960	200 m backstroke – 17 May 1959 - 2 August 1961: 2:37.5 (17 May 1959; Leipzig, GDR), 2:36.2 (12 June 1960; Leipzig, GDR)
Danièle Dorléans	FRA	SWM	1968	200 m freestyle – 16 August 1967 - 6 April 1968: 2:15.0 (16 August 1967; Marseille, FRA)
Luca Dotto	ITA	SWM	2012—2016	4×100 m freestyle mixed relay – 22 August 2014 - 8 August 2015: 3:25.02 (22 August 2014; Berlin, GER)
Viktor Drobinsky	RUS URS	SWM	1952	4×200 m freestyle relay – 10 May 1951 - 13 May 1951: 8:46.9 (10 May 1951; Moskva, URS)
Hugues Duboscq	FRA	SWM	2000—2008	100 m breaststroke – 26 July 2009 - 17 April 2015: 59.01 (26 July 2009; Roma, ITA), 58.64 (27 July 2009; Roma, ITA)
Damir Dugonjič	SLO	SWM	2008—2016	50 m breaststroke – 30 July 2013 - 28 July 2014: 26.83 tied (30 July 2013; Barcelona, ESP)
Andrey Dunayev	RUS URS	SWM	1968	400 m medley – 1 August 1967 - 30 August 1968: 4:47.2 (1 August 1967; Moskva, URS), 4:45.3 (3 April 1968; Tallinn, URS)
Bénédicte Duprez	FRA	SWM	1968	200 m backstroke – 24 August 1968 - 4 April 1970: 2:27.9 tied (24 August 1968; Vichy, FRA)
Oleksandr Dzhaburiya	UKR	SWM	1996	50 m breaststroke – 27 April 1996 - 28 July 2001: 27.61 (27 April 1996; Kharkov, UKR)
Margaret Edwards	GBR	SWM	1956	100 m backstroke – 19 April 1958 - 20 July 1958: 1:12.4 (19 April 1958; Cardiff, GBR)
Krisztina Egerszegi	HUN	SWM	1988—2001	100 m backstroke – 22 August 1991 - 18 September 2000: 1:00.31 (22 August 1991; Athina, GRE); 200 m backstroke – 25 September 1988 - 1 August 2009: 2:09.29 (25 September 1988; Seoul, KOR), 2:09.15 (3 January 1991; Perth, FRA), 2:08.74 (25 August 1991; Athina, GRE), 2:06.62 (25 August 1991; Athina, GRE)
Sylvia Eichner	GDR	SWM	1972	4×100 m freestyle relay – 30 August 1972 - 30 August 1972 and 8 September 1973 - 14 March 1975: 3:58.11 (30 August 1972; München, FRG), 3:52.45 (8 September 1973; Beograd, YUG)
Andrea Eife	GDR	SWM	1972	200 m freestyle – 1 September 1972 - 12 July 1973 and 5 September 1973 - 5 July 1974: 2:07.05 (1 September 1972; München, FRG), 2:06.27 (1 September 1972; München, FRG), 2:05.52 (5 September 1973; Beograd, YUG); 200 m backstroke – 11 July 1973 - 19 August 1973: 2:22.34 (11 July 1973; Ost-Berlin, GDR); 4×100 m freestyle relay – 30 August 1972 - 14 March 1975: 3:58.11 (30 August 1972; München, FRG), 3:55.55 (30 August 1972; München, FRG), 3:52.45 (8 September 1973; Beograd, YUG)
Aldo Eminente	FRA	SWM	1952—1956	4×100 m medley relay – 1 April 1953 - 17 April 1953: 4:31.5 (1 April 1953; Troyes, FRA)
Kornelia Ender	GDR	SWM	1972—1976	100 m freestyle – 28 May 1973 - 5 July 1978: 58.60 (28 May 1973; Halle, GDR), 58.60 tied (22 June 1973; Santa Clara, USA), 58.25 (13 July 1973; Ost-Berlin, GDR), 58.12 (18 August 1973; Utrecht, NED), 57.61 (8 September 1973; Beograd, YUG), 57.54 (9 September 1973; Beograd, YUG), 57.51 (4 July 1974; Rostock, GDR), 56.96 (19 August 1974; Wien, AUT), 56.38 (14 March 1975; Dresden, GDR), 56.22 (27 July 1975; Cali, COL), 55.73 (1 June 1976; Ost-Berlin, GDR), 55.65 (19 July 1976; Montréal, CAN); 200 m freestyle – 12 July 1973 - 5 September 1973 and 22 August 1974 - 2 July 1978: 2:05.70 (12 July 1973; Ost-Berlin, GDR), 2:05.64 (19 August 1973; Utrecht, NED), 2:03.22 (22 August 1974; Wien, AUT), 2:02.27 (15 March 1975; Dresden, GDR), 1:59.78 (2 June 1976; Ost-Berlin, GDR), 1:59.26 (22 July 1976; Montréal, CAN); 100 m backstroke – 3 June 1976 - 5 June 1976: 1:01.62 (3 June 1976; Ost-Berlin, GDR); 100 m butterfly – 14 April 1973 - 21 August 1974 and 9 June 1975 - 28 August 1977: 1:03.05 (14 April 1973; Ost-Berlin, GDR), 1:02.31 (14 July 1973; Ost-Berlin, GDR), 1:01.33 (9 June 1975; Wittenberg, GDR), 1:01.24 (24 July 1975; Cali, COL), 1:00.13 (4 June 1976; Ost-Berlin, GDR), 1:00.13 tied (22 July 1976; Montréal, CAN); 200 m medley – 28 August 1972 - 4 September 1973 and 5 June 1976 - 10 July 1977: 2:25.39 (28 August 1972; München, FRG), 2:23.59 (28 August 1972; München, FRG), 2:23.01 (13 April 1973; Ost-Berlin, GDR), 2:17.14 (5 June 1976; Ost-Berlin, GDR); 4×100 m freestyle relay – 30 August 1972 - 2 June 1976 and 25 July 1976 - 27 July 1980: 3:58.11 (30 August 1972; München, FRG), 3:55.55 (30 August 1972; München, FRG), 3:52.45 (8 September 1973; Beograd, YUG), 3:52.23 (14 March 1975; Dresden, GDR), 3:49.37 (27 July 1975; Cali, COL), 3:45.50 (25 July 1976; Montréal, CAN); 4×100 m medley relay – 3 September 1972 - 5 June 1976 and 18 July 1976 - 20 July 1980: 4:24.91 (3 September 1972; München, FRG), 4:16.84 (4 September 1973; Beograd, YUG), 4:13.78 (24 August 1974; Wien, AUT), 4:07.95 (18 July 1976; Montréal, CAN)
Cocki van Engelsdorp Gastelaars	NED	SWM	1960	100 m freestyle – 3 March 1956 - 23 March 1957 and 15 January 1958 - 16 July 1960: 1:04.2 (3 March 1956; Amsterdam, NED), 1:04.0 (14 April 1956; Schiedam, GBR), 1:05.0 (15 January 1958; Melbourne, AUS), 1:03.9 (17 May 1958; Blackpool, GBR), 1:03.7 (1 September 1958; Budapest, HUN), 1:02.9 (14 July 1959; Paris, FRA); 4×100 m freestyle relay – 6 September 1958 - 24 August 1962 and 25 August 1962 - 8 August 1963: 4:22.9 (6 September 1958; Budapest, HUN), 4:22.9 tied (27 June 1959; Saarbrücken, FRG), 4:18.2 (11 June 1960; Leipzig, GDR), 4:15.1 (25 August 1962; Leipzig, GDR); 4×100 m medley relay – 8 December 1956 - 1 May 1957, 18 May 1957 - 25 July 1958, and 5 September 1958 - 15 July 1960: 4:53.1 (8 December 1956; Zwolle, NED), 4:57.0 (18 May 1957; Blackpool, GBR), 4:52.9 (5 September 1958; Budapest, HUN), 4:51.5 (26 July 1959; Waalwijk, NED), 4:47.3 (12 June 1960; Leipzig, GDR)
Konrad Enke	GDR GER	SWM	1960	200 m breaststroke – 11 August 1959 - 19 June 1960: 2:38.6 (11 August 1959; Leipzig, GDR)
Ingvar Eriksson	SWE	SWM	1964—1968	200 m butterfly – 1 August 1967 - 24 July 1968: 2:09.4 (1 August 1967; Landskrona, SWE)
Lester Eriksson	SWE	SWM	1964—1968	4×200 m freestyle relay – 17 August 1963 - 6 September 1964: 8:16.2 (17 August 1963; Örebro, SWE)
Reni Erkens	GER	SWM	1928	200 m freestyle – 17 January 1928 - 2 March 1930: 2:47.8 (17 January 1928; Duisburg, GER)
Franck Esposito	FRA	SWM	1992—2004	200 m butterfly – 23 July 2001 - 21 March 2008: 1:55.03 (23 July 2001; Fukuoka, JPN), 1:54.62 (18 April 2002; Chalon sur Saone, FRA)
Otto Fahr	GER	SWM	1912	100 m backstroke – 29 April 1912 - 19 June 1927: 1:15.6 (29 April 1912; Magdeburg, GER); 200 m backstroke – 30 April 1912 - 17 May 1927: 2:48.4 (30 April 1912; Magdeburg, GER)
Thomas Fahrner	FRG	SWM	1984—1988	4×200 m freestyle relay – 23 August 1983 - 27 July 1992: 7:20.40 (23 August 1983; Roma, ITA), 7:15.73 (30 July 1984; Los Angeles, USA), 7:13.10 (19 August 1987; Strasbourg, FRA)
Grigory Falko	RUS	SWM	2004—2008	4×100 m medley relay – 24 March 2008 - 1 July 2008: 3:34.25 (24 March 2008; Eindhoven, NED)
Hans Faßnacht	FRG	SWM	1968—1972	200 m freestyle – 15 August 1969 - 29 August 1972: 1:56.5 (15 August 1969; Louisville, USA), 1:56.4 (8 September 1970; Barcelona, ESP), 1:55.2 (9 September 1970; Barcelona, ESP); 400 m freestyle – 11 July 1969 - 7 September 1970: 4:08.2 (11 July 1969; Santa Clara, USA), 4:06.9 (1 August 1969; Louisville, USA), 4:04.0 (14 August 1969; Louisville, USA); 800 m freestyle – 11 September 1970 - 22 August 1971: 8:41.4 (11 September 1970; Barcelona, ESP), 8:38.4 (8 August 1971; Los Angeles, USA); 1500 m freestyle – 18 August 1968 - 7 August 1970 and 11 September 1970 - 4 September 1972: 16:46.7 (18 August 1968; Wuppertal, FRG), 16:36.8 (13 July 1969; Santa Clara, USA), 16:32.1 (3 August 1969; Los Angeles, USA), 16:19.9 (11 September 1970; Barcelona, ESP); 200 m butterfly – 22 August 1970 - 15 March 1975: 2:06.9 (22 August 1970; Los Angeles, USA), 2:06.5 (10 July 1971; Santa Clara, USA), 2:06.1 (10 July 1971; Santa Clara, USA), 2:06.0 (7 August 1971; Santa Clara, USA), 2:04.5 (29 August 1971; Uppsala, SWE), 2:03.3 (31 August 1971; Landskrona, SWE); 400 m medley – 2 August 1969 - 7 September 1970: 4:43.0 (2 August 1969; Los Angeles, USA), 4:42.5 (24 August 1969; Würzburg, FRG); 4×200 m freestyle relay – 12 September 1970 - 21 August 1974: 7:49.5 (12 September 1970; Barcelona, ESP), 7:41.69 (29 August 1972; München, FRG)
Aleksandr Fedorovsky	RUS URS	SWM	1980	4×100 m medley relay – 8 April 1979 - 24 July 1980: 3:46.20 (8 April 1979; Potsdam, GDR), 3:45.99 (20 August 1979; Moskva, URS)
Peter Feil	SWE	SWM	1968	200 m butterfly – 24 July 1968 - 13 July 1969: 2:08.1 (24 July 1968; Bastaad, CAN), 2:08.0 (30 July 1968; Jonköping, SWE)
Hendrik Feldwehr	GER	SWM	2012	50 m breaststroke – 28 July 2009 - 28 July 2014: 26.83 (28 July 2009; Roma, ITA); 4×100 m medley relay – 2 August 2009 - 28 July 2019: 3:29.48 (2 August 2009; Roma, ITA), 3:28.58 (2 August 2009; Roma, ITA)
Roberta Felotti	ITA	SWM	1980—1988	1500 m freestyle – 26 August 1979 - 27 August 1981: 16:33.56 (26 August 1979; Florence, ITA)
Erika Ferraioli	ITA	SWM	2008—2016	4×100 m freestyle mixed relay – 22 August 2014 - 8 August 2015: 3:25.02 (22 August 2014; Berlin, GER)
Serhiy Fesenko	UKR	SWM	2000—2008	200 m butterfly – 12 August 1979 - 11 September 1981: 1:59.34 (12 August 1979; London, GBR); 400 m medley – 3 September 1977 - 22 February 1980: 4:25.37 (3 September 1977; Leningrad, URS), 4:25.25 (9 April 1978; Leningrad, URS), 4:22.29 (22 August 1978; West Berlin, FRG)
Alessia Filippi	ITA	SWM	2004—2012	1500 m freestyle – 16 July 2008 - 26 April 2009 and 28 July 2009 - 30 July 2013: 15:52.84 (16 July 2008; Lovadina di Spresiano, ITA), 15:44.93 (28 July 2009; Roma, ITA); 4×200 m freestyle relay – 14 August 2008 - 30 July 2009: 7:49.76 (14 August 2008; Beijing, CHN)
Domenico Fioravanti	ITA	SWM	2000	200 m breaststroke – 20 September 2000 - 14 June 2003: 2:10.87 (20 September 2000; Sydney, AUS)
Helmut Fischer	GER	SWM	1936	100 m freestyle – 26 April 1936 - 12 June 1946: 56.8 (26 April 1936; Berlin, GER); 4×100 m freestyle relay – 5 March 1938 - 1 April 1938 and 25 March 1939 - 15 December 1946: 4:03.6 (5 March 1938; Bremen, GER), 4:00.5 (25 March 1939; Bremen, GER)
Thomas Flemming	GDR	SWM	1988	4×100 m freestyle relay – 21 August 1987 - 23 September 1988: 3:19.17 (21 August 1987; Strasbourg, FRA)
Hartmut Flöckner	GDR	SWM	1972—1976	4×100 m medley relay – 4 September 1971 - 25 August 1974: 3:53.8 (4 September 1971; Leipzig, GDR), 3:52.12 (4 September 1972; München, FRG)
Mark Foster	GBR	SWM	1988—2008	50 m butterfly – 27 July 2001 - 28 July 2001: 23.66 (27 July 2001; Fukuoka, JPN)
Giovanni Franceschi	ITA	SWM	1980—1984	200 m medley – 27 August 1983 - 23 August 1986: 2:02.48 (27 August 1983; Roma, ITA); 400 m medley – 23 August 1983 - 23 May 1984: 4:20.41 (23 August 1983; Roma, ITA)
Angela Franke	GDR	SWM	1972	200 m freestyle – 5 July 1974 - 25 July 1974: 2:05.25 (5 July 1974; Rostock, GDR); 400 m freestyle – 20 August 1974 - 14 March 1976: 4:17.83 (20 August 1974; Wien, AUT); 400 m medley – 19 August 1973 - 6 September 1973: 5:01.10 (19 August 1973; Utrecht, NED); 4×100 m freestyle relay – 14 March 1975 - 27 July 1975: 3:52.23 (14 March 1975; Dresden, GDR)
Grete Frederiksen	DEN	SWM	1936	1500 m freestyle – 26 June 1936 - 3 July 1938: 22:36.7 (26 June 1936; København, DEN)
Hans Freese	GER	SWM	1936	4×100 m freestyle relay – 5 March 1938 - 1 April 1938: 4:03.6 (5 March 1938; Bremen, GER)
Werner Freitag	GER FRG	SWM	1964—1968	4×100 m medley relay – 28 September 1963 - 17 May 1964: 4:07.6 (28 September 1963; Dortmund, FRG)
Heike Friedrich	GDR	SWM	1988	200 m freestyle – 18 June 1986 - 6 September 1994: 1:57.55 (18 June 1986; Berlin, GDR); 400 m freestyle – 19 June 1986 - 17 August 1989: 4:06.85 (19 June 1986; Ost-Berlin, GDR), 4:06.39 (20 August 1987; Strasbourg, FRA), 4:05.94 (22 September 1988; Seoul, KOR); 4×100 m freestyle relay – 21 August 1984 - 16 September 2000: 3:42.41 (21 August 1984; Moskva, URS), 3:40.57 (19 August 1986; Madrid, ESP); 4×200 m freestyle relay – 17 August 1986 - 3 August 2006: 7:59.33 (17 August 1986; Madrid, ESP), 7:55.47 (18 August 1987; Strasbourg, FRA)
Lotte Friis	DEN	SWM	2008—2016	1500 m freestyle – 30 July 2013 - present: 15:38.88 (30 July 2013; Barcelona, ESP)
Lars Frölander	SWE	SWM	1992—2012	50 m butterfly – 28 July 2001 - 30 July 2002: 23.57 (28 July 2001; Fukuoka, JPN); 100 m butterfly – 8 July 2000 - 24 May 2002: 52.23 (8 July 2000; Helsinki, FIN), 52.00 (21 September 2000; Sydney, AUS)
Héda Frost	FRA	SWM	1956—1960	200 m freestyle – 12 July 1960 - 3 May 1961: 2:21.3 (12 July 1960; Al-Jaza'ir, ALG)
Bärbel Fuhrmann	GDR GER	SWM	1960	4×100 m medley relay – 15 July 1960 - 24 April 1962: 4:46.7 (15 July 1960; Leipzig, GDR), 4:46.4 (6 August 1961; Budapest, HUN)
Christian Galenda	ITA	SWM	2004—2008	4×100 m freestyle relay – 25 March 2007 - 19 June 2008: 3:14.04 (25 March 2007; Melbourne, AUS)
Ellen Gandy	GBR	SWM	2008—2012	200 m butterfly – 19 March 2009 - 29 July 2009: 2:04.83 (19 March 2009; Sheffield, GBR)
Nel Garritsen	NED	SWM	1952	3×100 m medley relay – 2 December 1950 - 31 December 1952: 3:35.9 (2 December 1950; Rotterdam, NED)
HaJo Geisler	FRG	SWM	1972—1976	4×200 m freestyle relay – 25 July 1975 - 13 March 1976: 7:39.44 (25 July 1975; Cali, COL)
Ines Geißler	GDR	SWM	1980	200 m butterfly – 1 July 1981 - 27 August 1983: 2:08.97 (1 July 1981; Ost-Berlin, GDR), 2:08.50 (8 September 1981; Split, YUG), 2:08.03 (19 June 1983; Gera, GDR); 4×100 m medley relay – 7 August 1982 - 29 July 2001: 4:05.88 (7 August 1982; Guayaquil, ECU), 4:05.79 (26 August 1983; Roma, ITA), 4:03.69 (24 August 1984; Moskva, RUS)
Martha Genenger	GER	SWM	1936	200 m breaststroke – 16 March 1935 - 11 May 1937: 3:00.8 (16 March 1935; Düsseldorf, GER), 3:00.5 (21 March 1936; Dortmund, GER)
Éva Gérard-Novák	BEL HUN	SWM	1948—1956	200 m breaststroke – 21 October 1950 - 1 January 1953: 2:48.8 (21 October 1950; Székesfehérvár, HUN), 2:48.5 (5 May 1951; Moskva, URS); 4×100 m freestyle relay – 27 April 1952 - 22 March 1957: 4:27.2 (27 April 1952; Moskva, URS), 4:24.4 (1 August 1952; Helsinki, FIN)
Sylvia Gerasch	GER	SWM	2000	100 m breaststroke – 23 August 1984 - 21 August 1987: 1:08.29 (23 August 1984; Moskva, URS), 1:08.11 (21 August 1986; Madrid, ESP); 200 m breaststroke – 28 February 1986 - 18 August 1986: 2:28.20 (28 February 1986; Leningrad, URS); 4×100 m medley relay – 24 August 1984 - 29 July 2001: 4:03.69 (24 August 1984; Moskva, RUS)
Ute Geweniger	GDR	SWM	1980	100 m breaststroke – 27 May 1980 - 23 August 1984: 1:10.20 (27 May 1980; Magdeburg, GDR), 1:10.11 (24 July 1980; Moskva, URS), 1:09.52 (20 April 1981; Gera, GDR), 1:09.39 (2 July 1981; Ost-Berlin, GDR), 1:08.60 (8 September 1981; Split, YUG), 1:08.51 (25 August 1983; Roma, ITA); 200 m medley – 4 July 1981 - 19 September 2000: 2:11.73 (4 July 1981; Berlin, GDR); 4×100 m medley relay – 20 July 1980 - 24 August 1984: 4:06.67 (20 July 1980; Moskva, URS), 4:05.88 (7 August 1982; Guayaquil, ECU), 4:05.79 (26 August 1983; Roma, ITA)
James Gibson	GBR	SWM	2004	50 m breaststroke – 12 April 2002 - 2 August 2002: 27.51 (12 April 2002; Manchester, GBR)
Irene Gilbert	GBR	SWM	1924	100 m breaststroke – 30 October 1924 - 4 October 1925: 1:31.8 (30 October 1924; Rotherham, GBR); 200 m breaststroke – 18 June 1923 - 5 April 1925: 3:20.4 (18 June 1923; Rotherham, GBR)
Nick Gillingham	GBR	SWM	1988—1996	200 m breaststroke – 18 August 1989 - 20 July 1990 and 23 May 1992 - 29 July 1992: 2:12.90 (18 August 1989; Bonn, GER), 2:11.98 (23 May 1992; Sheffield, GBR), 2:11.62 (23 May 1992; Sheffield, GBR)
Fabien Gilot	FRA	SWM	2004—2016	4×100 m freestyle relay – 19 June 2008 - 10 August 2008 and 11 August 2008 - present: 3:12.54 (19 June 2008; Paris, FRA), 3:08.32 (11 August 2008; Beijing, CHN)
Bengt Gingsjö	SWE	SWM	1972—1976	400 m freestyle – 6 September 1973 - 27 July 1975: 4:01.27 (6 September 1973; Beograd, YUG); 800 m freestyle – 8 September 1973 - 21 December 1974: 8:32.82 (8 September 1973; Beograd, YUG); 1500 m freestyle – 4 September 1972 - 5 August 1973 and 8 September 1973 - 25 August 1974: 16:16.01 (4 September 1972; München, FRG), 16:06.01 (8 September 1973; Beograd, YUG)
Knud Gleie	DEN	SWM	1952—1956	200 m breaststroke – 14 February 1953 - 19 April 1953, 18 March 1956 - 15 August 1956, and 4 April 1957 - 1 May 1957: 2:37.4 (14 February 1953; København, DEN), 2:35.0 (18 March 1956; La Louviere, BEL), 2:32.5 (4 April 1957; København, DEN)
Barbara Göbel	GDR GER	SWM	1960	100 m breaststroke – 1 July 1961 - 8 August 1964: 1:18.2 (1 July 1961; Rostock, GDR); 4×100 m medley relay – 17 June 1962 - 28 June 1964: 4:44.1 (17 June 1962; Magdeburg, GDR), 4:43.3 (14 July 1962; Wittenberg, GDR), 4:40.1 (23 August 1962; Leipzig, GDR)
Yvonne Godard	FRA	SWM	1932	800 m freestyle – 23 July 1931 - 26 July 1933: 12:18.8 (23 July 1931; Paris, FRA); 1500 m freestyle – 23 July 1931 - 26 June 1936: 23:32.4 (23 July 1931; Paris, FRA)
Sigrid Goral	GDR	SWM	1968	800 m freestyle – 16 August 1968 - 6 July 1969: 9:43.5 (16 August 1968; Leipzig, GDR)
Christine Gosden	GBR	SWM	1956—1960	4×100 m medley relay – 25 July 1958 - 5 September 1958: 4:54.0 (25 July 1958; Cardiff, GBR)
Alain Gottvallès	FRA	SWM	1960—1964	100 m freestyle – 10 August 1962 - 13 July 1963 and 13 September 1964 - 5 September 1970: 55.0 (10 August 1962; Thionville, FRA), 52.9 (13 September 1964; Budapest, HUN); 4×100 m freestyle relay – 10 August 1962 - 31 August 1965: 3:42.5 (10 August 1962; Thionville, FRA), 3:39.2 (13 September 1964; Budapest, HUN); 4×200 m freestyle relay – 21 August 1962 - 22 August 1962 and 6 September 1964 - 24 August 1966: 8:25.8 (21 August 1962; Leipzig, GDR), 8:06.8 (6 September 1964; Bagnols, FRA)
Daniela Götz	GER	SWM	2004—2008	4×100 m freestyle relay – 31 July 2006 - 18 March 2008: 3:35.22 (31 July 2006; Budapest, HUN)
Andrey Grechin	RUS	SWM	2008—2016	4×100 m medley relay – 24 March 2008 - 1 July 2008 and 15 August 2008 - 17 August 2008: 3:34.25 (24 March 2008; Eindhoven, NED), 3:33.59 (15 August 2008; Beijing, CHN)
Horst-Günter Gregor	GDR GER	SWM	1964—1968	100 m butterfly – 25 August 1964 - 7 August 1965: 59.3 (25 August 1964; Magdeburg, GDR); 4×100 m freestyle relay – 31 August 1965 - 22 March 1966 and 26 August 1966 - 21 September 1967: 3:38.1 (31 August 1965; Leipzig, GDR), 3:36.8 (26 August 1966; Utrecht, NED); 4×100 m medley relay – 18 June 1960 - 6 August 1960, 21 August 1962 - 28 September 1963, and 7 November 1967 - 8 September 1970: 4:16.1 (18 June 1960; Ost-Berlin, GDR), 4:09.0 (21 August 1962; Leipzig, GDR), 3:56.5 (7 November 1967; Leipzig, GDR)
Judith Grinham	GBR	SWM	1956	100 m backstroke – 5 December 1956 - 19 April 1958 and 23 July 1958 - 26 July 1959: 1:12.9 (5 December 1956; Melbourne, AUS), 1:11.9 (23 July 1958; Cardiff, GBR); 4×100 m medley relay – 25 July 1958 - 5 September 1958: 4:54.0 (25 July 1958; Cardiff, GBR)
Igor Grivennikov	RUS URS	SWM	1972	4×100 m freestyle relay – 28 August 1972 - 14 March 1975: 3:29.72 (28 August 1972; München, FRG)
Annemarie Groen	NED	SWM	1972	200 m backstroke – 19 April 1972 - 4 September 1972: 2:24.3 tied (19 April 1972; Hannover, FRG); 4×100 m medley relay – 18 April 1972 - 3 September 1972: 4:30.0 (18 April 1972; Hannover, FRG)
Ödön Gróf	HUN	SWM	1936	4×100 m freestyle relay – 15 August 1937 - 5 March 1938 and 14 July 1938 - 25 March 1939: 4:06.6 (15 August 1937; Budapest, HUN), 4:02.0 (14 July 1938; Budapest, HUN); 4×200 m freestyle relay – 14 July 1935 - 24 September 1946: 9:14.8 (14 July 1935; Budapest, HUN), 9:10.8 (23 August 1936; Budapest, HUN)
Gérard Gropaiz	FRA	SWM	1960—1964	4×100 m freestyle relay – 10 August 1962 - 31 August 1965: 3:42.5 (10 August 1962; Thionville, FRA), 3:39.2 (13 September 1964; Budapest, HUN); 4×200 m freestyle relay – 21 August 1962 - 22 August 1962 and 15 July 1967 - 18 April 1969: 8:25.8 (21 August 1962; Leipzig, GDR), 7:58.6 (15 July 1967; Paris, FRA)
Michael Groß	FRG	SWM	1984—1988	200 m freestyle – 1 August 1982 - 15 June 1983 and 21 June 1983 - 15 August 1989: 1:49.55 (1 August 1982; Guayaquil, ECU), 1:48.28 (21 June 1983; Hannover, FRG), 1:47.87 (22 August 1983; Roma, ITA), 1:47.55 (8 June 1984; München, FRG), 1:47.44 (29 July 1984; Los Angeles, USA); 400 m freestyle – 27 June 1985 - 25 March 1988: 3:47.80 (27 June 1985; Remscheid, FRG); 50 m butterfly – 2 August 1982 - 22 July 1988: 25.19 (2 August 1982; Guayaquil, ECU), 24.77 (30 July 1984; Los Angeles, USA); 100 m butterfly – 1 July 1982 - 23 May 1984 and 9 June 1984 - 23 August 1995: 54.00 (1 July 1982; Darmstadt, FRG), 54.00 tied (23 August 1983; Roma, ITA), 53.78 (9 June 1984; Monte Carlo, MON), 53.08 (30 July 1984; Los Angeles, USA); 200 m butterfly – 11 September 1981 - 14 June 1995: 1:59.19 (11 September 1981; Split, YUG), 1:59.00 (3 July 1982; Darmstadt, FRG), 1:58.85 (6 August 1982; Guayaquil, ECU), 1:58.37 (24 June 1983; Hannover, FRG), 1:58.22 (25 June 1983; Hannover, FRG), 1:57.05 (26 August 1983; Roma, ITA), 1:57.01 (29 June 1985; Remscheid, FRG), 1:56.65 (10 August 1985; Sofia, BUL), 1:56.24 (28 June 1986; Hannover, GER); 4×100 m freestyle relay – 29 July 1981 - 21 August 1981: 3:23.87 (29 July 1981; Heidelberg, FRG); 4×200 m freestyle relay – 23 August 1983 - 27 July 1992: 7:20.40 (23 August 1983; Roma, ITA), 7:15.73 (30 July 1984; Los Angeles, USA), 7:13.10 (19 August 1987; Strasbourg, FRA)
Dusan Grozaj	FRG	SWM	1972	800 m freestyle – 29 August 1972 - 11 August 1973: 8:35.5 (29 August 1972; Würzburg, FRG)
Martina Grunert	GDR GER	SWM	1964—1968	100 m freestyle – 22 August 1966 - 19 August 1967: 1:01.2 (22 August 1966; Utrecht, NED); 200 m medley – 23 August 1969 - 18 April 1972: 2:27.5 (23 August 1969; Budapest, HUN)
Marcello Guarducci	ITA	SWM	1972—1984	100 m freestyle – 8 September 1977 - 28 August 1978: 51.25 (8 September 1977; Chiavari, ITA)
József Gulrich	HUN	SWM	1964	100 m butterfly – 1 September 1962 - 9 September 1962 and 14 September 1962 - 18 September 1962: 1:01.0 (1 September 1962; Cottbus, GDR), 1:00.2 (14 September 1962; Budapest, HUN)
Sergey Gusev	RUS URS	SWM	1968	4×100 m freestyle relay – 21 September 1967 - 17 October 1968: 3:35.6 (21 September 1967; Tbilisi, URS), 3:35.6 tied (3 April 1968; Tallinn, URS)
Károly Güttler	HUN	SWM	1988—2000	100 m breaststroke – 3 August 1993 - 20 July 1996: 1:00.95 (3 August 1993; Sheffield, GBR)
James Guy	GBR	SWM	2016—2020	4×100 m medley relay – 28 July 2019 - present: 3:28.10 (28 July 2019; Gwangju, KOR); 4×100 m medley mixed relay – 6 August 2018 - present: 3:40.18 (6 August 2018; Glasgow, GBR), 3:38.82 (20 May 2021; Budapest, HUN)
Andrea Gyarmati	HUN	SWM	1968—1972	100 m backstroke – 3 April 1970 - 6 September 1970, 11 April 1971 - 15 April 1973, and 21 July 1973 - 18 August 1973: 1:07.9 tied (3 April 1970; Kecskemét, HUN), 1:06.6 (11 April 1971; Kecskemét, HUN), 1:06.5 (11 April 1971; Kecskemét, HUN), 1:06.39 (2 September 1972; München, FRG), 1:06.26 (2 September 1972; München, FRG), 1:05.93 (21 July 1973; Budapest, HUN); 200 m backstroke – 4 April 1970 - 6 August 1970, 22 August 1970 - 9 September 1970, 10 September 1970 - 4 September 1972, and 19 August 1973 - 14 March 1974: 2:27.6 (4 April 1970; Kecskemét, HUN), 2:26.9 (22 August 1970; Budapest, HUN), 2:25.5 (10 September 1970; Barcelona, ESP), 2:25.1 (29 May 1971; Budapest, HUN), 2:24.4 (29 August 1971; Bratislava, TCH), 2:24.3 (19 April 1972; Hannover, FRG), 2:21.66 (19 August 1973; Utrecht, NED); 100 m butterfly – 29 August 1971 - 1 September 1972: 1:04.5 tied (29 August 1971; Bratislava, TCH), 1:04.01 (31 August 1972; München, FRG), 1:03.80 (31 August 1972; München, FRG); 4×100 m freestyle relay – 13 July 1968 - 26 October 1968 and 24 June 1969 - 11 September 1970: 4:07.5 (13 July 1968; Budapest, HUN), 4:02.6 (24 June 1969; Budapest, HUN)
Valéria Gyenge	HUN	SWM	1952—1956	800 m freestyle – 28 June 1953 - (16 February 1957 - 1 May 1957) - 15 July 1959: 10:42.4 (28 June 1953; Budapest, HUN); 4×100 m medley relay – 24 July 1953 - 3 August 1954: 5:10.8 (24 July 1953; Budapest, HUN), 5:09.2 (10 August 1953; Bucharest, ROU)
László Gyöngyösi	HUN	SWM	1948—1952	4×100 m freestyle relay – 20 August 1949 - 6 May 1951: 3:56.8 (20 August 1949; Budapest, HUN), 3:55.0 (15 October 1950; Budapest, HUN), 3:53.2 (21 October 1950; Székesfehérvár, HUN); 4×200 m freestyle relay – 13 May 1951 - 2 August 1951: 8:45.9 (13 May 1951; Moskva, URS)
Dániel Gyurta	HUN	IOC/SWM	2004—2016	200 m breaststroke – 12 August 2008 - 28 June 2009 and 30 July 2009 - 27 July 2017: 2:08.68 (12 August 2008; Beijing, CHN), 2:08.08 (30 July 2009; Roma, ITA), 2:07.64 (31 July 2009; Roma, ITA), 2:07.28 (1 August 2012; London, GBR), 2:07.23 (2 August 2013; Barcelona, ESP)
Ada den Haan	NED	SWM	1960	100 m breaststroke – 13 July 1957 - 20 July 1958: 1:21.1 (13 July 1957; Paris, FRA); 200 m breaststroke – 13 November 1956 - 1 May 1957 and 3 August 1957 - 25 July 1959: 2:46.4 (13 November 1956; Naarden, NED), 2:51.9 (3 August 1957; Rhenen, NED), 2:51.3 (4 August 1957; Rhenen, NED); 4×100 m medley relay – 8 December 1956 - 1 May 1957, 18 May 1957 - 25 July 1958, and 5 September 1958 - 15 July 1960: 4:53.1 (8 December 1956; Zwolle, NED), 4:57.0 (18 May 1957; Blackpool, GBR), 4:52.9 (5 September 1958; Budapest, HUN), 4:51.5 (26 July 1959; Waalwijk, NED), 4:47.3 (12 June 1960; Leipzig, GDR)
Ann-Christine Hagberg	SWE	SWM	1964	100 m freestyle – 18 July 1963 - 22 August 1966: 1:02.0 (18 July 1963; Bastad, SWE), 1:01.7 (8 August 1963; Stockholm, SWE), 1:01.5 (18 August 1963; Örebro, SWE); 4×100 m freestyle relay – 8 August 1963 - 27 June 1964: 4:14.0 (8 August 1963; Stockholm, SWE)
Zoltán Halmay	HUN	SWM	1900—1908	100 m freestyle – 3 December 1905 - 6 April 1912: 1:05.8 (3 December 1905; Wien, AUT)
Dano Halsall	SUI	SWM	1984—1992	50 m freestyle – 21 July 1985 - 28 August 1987: 22.52 (21 July 1985; Bellinzona, SUI)
Fran Halsall	GBR	SWM	2008—2016	4×100 m medley relay – 24 March 2008 - 1 August 2009: 3:59.33 (24 March 2008; Eindhoven, NED), 3:59.14 (15 August 2008; Beijing, CHN), 3:57.50 (17 August 2008; Beijing, CHN); 4×100 m medley mixed relay – 19 August 2014 - 6 August 2015: 3:44.02 (19 August 2014; Berlin, GER), 3:41.71 (5 August 2015; Kazan, RUS)
Louise Hansson	SWE	SWM	2016—2020	4×100 m medley relay – 9 August 2015 - 3 August 2016: 3:55.24 (9 August 2015; Kazan, RUS)
Marjatta Hara	FIN	SWM	1968	800 m freestyle – 6 July 1969 - 10 August 1969: 9:42.7 (6 July 1969; Helsinki, FIN)
Jere Hård	FIN	SWM	2000—2004	50 m butterfly – 30 July 2002 - 25 July 2005: 23.50 (30 July 2002; Berlin, GER)
Sarah Hardcastle	GBR	SWM	1984—1996	800 m freestyle – 29 July 1986 - 22 August 1987: 8:24.77 (29 July 1986; Edinburgh, GBR)
Phyllis Harding	GBR	SWM	1924—1936	100 m backstroke – 30 May 1932 - 25 November 1934: 1:18.6 (30 May 1932; Wallasey, GBR); 200 m backstroke – 19 September 1932 - 20 January 1935: 2:50.4 (19 September 1932; Wallasey, GBR)
András Hargitay	HUN	SWM	1972—1980	800 m freestyle – 21 December 1974 - 2 March 1975: 8:31.30 (21 December 1974; Kecskermet, HUN); 400 m medley – 5 September 1973 - 2 April 1976: 4:31.11 (5 September 1973; Beograd, YUG), 4:28.89 (20 August 1974; Wien, AUT)
Jack Hatfield	GBR	SWM/WPO	1912—1928	400 m freestyle – 26 September 1912 - 9 April 1922: 5:21.6 (26 September 1912; London, GBR)
Hermann Haverkamp	FRG	WPO	1968—1972	4×100 m freestyle relay – 24 May 1962 - 10 August 1962: 3:45.5 (24 May 1962; Moskva, URS)
Kate Haywood	GBR	SWM	2008—2012	4×100 m medley relay – 24 March 2008 - 1 August 2009: 3:59.33 (24 March 2008; Eindhoven, NED), 3:59.14 (15 August 2008; Beijing, CHN), 3:57.50 (17 August 2008; Beijing, CHN)
Brita Hazelius	SWE	SWM	1928	200 m breaststroke – 11 August 1926 - 24 October 1926: 3:19.1 (11 August 1926; Stockholm, SWE)
Femke Heemskerk	NED	SWM	2008—2020	4×100 m freestyle relay – 18 March 2008 - present: 3:33.62 (18 March 2008; Eindhoven, NED), 3:31.72 (26 July 2009; Roma, ITA); 4×100 m freestyle mixed relay – 8 August 2015 - present: 3:23.10 (8 August 2015; Kazan, RUS), 3:21.81 (29 July 2017; Budapest, HUN)
Marianne Heemskerk	NED	SWM	1960—1964	100 m butterfly – 30 August 1960 - 1 April 1962: 1:10.4 (30 August 1960; Roma, ITA); 200 m butterfly – 12 June 1960 - 24 September 1964: 2:34.4 (12 June 1960; Leipzig, GDR); 400 m medley – 20 August 1961 - 26 August 1961 and 28 February 1962 - 29 July 1962: 5:40.9 (20 August 1961; Zwolle, NED), 5:36.0 (28 February 1962; Rotterdam, NED)
Hermann Heibel	GER	SWM	1936	4×100 m freestyle relay – 5 March 1938 - 1 April 1938 and 25 March 1939 - 15 December 1946: 4:03.6 (5 March 1938; Bremen, GER), 4:00.5 (25 March 1939; Bremen, GER)
Jacob Heidtmann	GER	SWM	2016—2020	4×100 m freestyle mixed relay – 4 August 2018 - present: 7:28.43 (4 August 2018; Glasgow, GBR)
Irma Heijting-Schuhmacher	NED	SWM	1948—1952	3×100 m medley relay – 2 December 1950 - 31 December 1952: 3:35.9 (2 December 1950; Rotterdam, NED)
Arthur Heina	GER	SWM	1936	200 m breaststroke – 11 September 1937 - 2 March 1938: 2:38.9 (11 September 1937; Magdeburg, GER)
Claudia Hempel	GDR	SWM	1976	4×100 m freestyle relay – 14 March 1975 - 2 June 1976 and 25 July 1976 - 27 July 1980: 3:52.23 (14 March 1975; Dresden, GDR), 3:49.37 (27 July 1975; Cali, COL), 3:45.50 (25 July 1976; Montréal, CAN)
Rainer Henkel	FRG	SWM	1984—1988	4×200 m freestyle relay – 19 August 1987 - 27 July 1992: 7:13.10 (19 August 1987; Strasbourg, FRA)
Thamar Henneken	NED	SWM	2000	4×100 m freestyle relay – 16 September 2000 - 23 July 2001: 3:39.83 (16 September 2000; Sydney, AUS)
Egon Henninger	GDR GER	SWM	1960—1968	100 m breaststroke – 1 March 1964 - 26 March 1964: 1:09.0 (1 March 1964; Magdeburg, GDR); 200 m breaststroke – 19 June 1960 - 25 June 1961: 2:37.4 (19 June 1960; Ost-Berlin, GDR); 4×100 m medley relay – 21 August 1962 - 28 September 1963 and 7 November 1967 - 8 September 1970: 4:09.0 (21 August 1962; Leipzig, GDR), 3:56.5 (7 November 1967; Leipzig, GDR)
Frank Henter	FRG	SWM	1988	50 m butterfly – 22 July 1988 - 8 November 1990: 24.61 (22 July 1988; Karlsruhe, GER)
Aliaksandra Herasimenia	BLR	SWM	2008—2016	50 m backstroke – 31 May 2006 - 22 March 2008 and 27 July 2017 - 4 August 2018: 28.19 tied (31 May 2006; Minsk, BLR), 27.23 tied (27 July 2017; Budapest, HUN)
Christine Herbst	GDR	SWM	1972	200 m backstroke – 4 September 1972: 2:23.44 (4 September 1972; München, FRG); 4×100 m medley relay – 3 September 1972 - 4 September 1973: 4:27.58 (3 September 1972; München, FRG), 4:24.91 (3 September 1972; München, FRG)
Gerhard Hetz	GER FRG	SWM	1960—1964	200 m freestyle – 13 August 1961 - 29 April 1962 and 20 May 1962 - 13 October 1963: 2:04.7 (13 August 1961; Reutlingen, FRG), 2:04.0 (9 September 1961; Monte Carlo, MON), 2:01.7 (20 May 1962; Dortmund, FRG); 800 m freestyle – 30 April 1961 - 29 October 1964: 9:16.3 (30 April 1961; Dortmund, FRG), 9:08.0 (19 May 1962; Dortmund, FRG); 1500 m freestyle – 5 August 1962 - 9 August 1964: 17:31.7 (5 August 1962; Würzburg, FRG); 200 m butterfly – 22 July 1962 - 23 August 1962: 2:15.5 (22 July 1962; San Remo, ITA); 400 m medley – 24 May 1962 - 22 August 1966: 4:53.8 (24 May 1962; Moskva, URS), 4:50.2 (12 October 1963; Tokyo, JPN); 4×100 m freestyle relay – 24 May 1962 - 10 August 1962: 3:45.5 (24 May 1962; Moskva, URS)
Betty Heukels	NED	SWM	1964	400 m medley – 27 August 1966 - 9 April 1967: 5:25.0 (27 August 1966; Utrecht, NED)
Nađa Higl	SRB	SWM	2008—2012	200 m breaststroke – 31 July 2009 - 2 August 2012: 2:21.62 (31 July 2009; Roma, ITA)
Margery Hinton	GBR	SWM	1928—1936	200 m breaststroke – 20 July 1931 - 21 April 1932: 3:10.6 (20 July 1931; Manchester, GBR)
Jörg Hoffmann	GDR GER	SWM	1988—1996	1500 m freestyle – 13 January 1991 - 21 August 2004: 14:50.36 (13 January 1991; Perth, FRA)
Veronika Holletz	GDR GER	SWM	1964	400 m medley – 15 October 1964 - 27 August 1966: 5:26.8 (15 October 1964; Tokyo, JPN), 5:25.6 (17 October 1964; Tokyo, JPN); 4×100 m medley relay – 6 August 1961 - 23 August 1962: 4:46.4 (6 August 1961; Budapest, HUN), 4:45.0 (24 April 1962; Moskva, URS), 4:44.1 (17 June 1962; Magdeburg, GDR), 4:43.3 (14 July 1962; Wittenberg, GDR)
Fred Holman	GBR	SWM	1908	200 m breaststroke – 18 August 1908 - 18 April 1909: 3:09.2 (18 August 1908; London, GBR)
Anders Holmertz	SWE	SWM	1984—1996	4×100 m freestyle relay – 1 September 1979 - 7 March 1980: 3:26.34 (1 September 1979; Tokyo, JPN)
Mike Holthaus	FRG	SWM	1968—1972	400 m medley – 30 August 1968 - 2 August 1969: 4:44.0 (30 August 1968; West Berlin, FRG)
Hanni Hölzner	GER	SWM	1936	100 m breaststroke – 15 January 1935 - 8 March 1936 and 13 March 1936 - 9 May 1943: 1:24.5 (15 January 1935; København, DEN), 1:23.4 (16 February 1936; Halle, GER), 1:20.2 (13 March 1936; Plauen, GER)
Pieter van den Hoogenband	NED	SWM	1996—2008	100 m freestyle – 19 September 2000 - 21 March 2008: 47.84 (19 September 2000; Sydney, AUS); 200 m freestyle – 18 December 1999 - 14 June 2009: 1:46.58 (18 December 1999; Eindhoven, NED), 1:45.35 (17 September 2000; Sydney, AUS), 1:45.35 tied (18 September 2000; Sydney, AUS), 1:44.89 (2 August 2002; Berlin, GER); 4×100 m freestyle relay – 26 July 1999 - 20 July 2003: 3:16.27 (26 July 1999; İstanbul, TUR), 3:14.56 (22 July 2001; Fukuoka, JPN)
Silke Hörner	GDR	SWM	1988	50 m breaststroke – 21 August 1987 - 8 July 1999: 32.00 (21 August 1987; Strasbourg, FRA), 31.84 (23 September 1988; Seoul, KOR), 31.58 (23 September 1988; Seoul, KOR); 100 m breaststroke – 21 August 1987 - 17 September 2000: 1:07.91 (21 August 1987; Strasbourg, FRA); 200 m breaststroke – 5 June 1985 - 28 February 1986 and 18 August 1986 - 23 July 1996: 2:28.33 (5 June 1985; Leipzig, GDR), 2:27.40 (18 August 1986; Madrid, ESP), 2:26.71 (21 September 1988; Seoul, KOR)
Katinka Hosszú	HUN	SWM	2004—2020	200 m butterfly – 29 July 2009 - present: 2:04.27 (29 July 2009; Roma, ITA); 200 m medley – 26 July 2009 - present: 2:09.12 (26 July 2009; Roma, ITA), 2:07.46 (27 July 2009; Roma, ITA), 2:07.30 (2 August 2015; Kazan, RUS), 2:06.84 (2 August 2015; Kazan, RUS), 2:06.12 (3 August 2015; Kazan, RUS); 400 m medley – 2 August 2009 - present: 4:30.31 (2 August 2009; Roma, ITA), 4:29.89 (4 March 2016; Marseille, FRA), 4:28.58 (5 August 2016; Rio de Janeiro, BRA), 4:26.36 (6 August 2016; Rio de Janeiro, BRA)
Andriy Hovorov	UKR	SWM	2010—2016	50 m butterfly – 1 July 2018 - present: 22.27 (1 July 2018; Roma, ITA)
Sarina Hülsenbeck	GDR	SWM	1980	4×100 m freestyle relay – 27 July 1980 - 21 August 1984: 3:45.19 (27 July 1980; Moskva, URS), 3:42.71 (27 July 1980; Moskva, URS)
Magdolna Hunyadfy	HUN	SWM	1952	4×100 m medley relay – 24 July 1953 - 3 August 1954: 5:10.8 (24 July 1953; Budapest, HUN), 5:09.2 (10 August 1953; Bucharest, ROU)
Ragnhild Hveger	DEN	SWM	1936—1952	200 m freestyle – 11 September 1938 - 1 May 1957: 2:21.7 (11 September 1938; Århus, DEN); 400 m freestyle – 10 February 1937 - 16 November 1956: 5:14.2 (10 February 1937; København, DEN), 5:14.0 (3 October 1937; Gent, BEL), 5:12.4 (14 November 1937; Magdeburg, GER), 5:11.0 (12 December 1937; København, DEN), 5:08.2 (16 January 1938; København, DEN), 5:06.1 (1 August 1938; København, DEN), 5:05.4 (8 September 1940; Svendborg, DEN), 5:00.1 (15 September 1940; København, DEN); 800 m freestyle – 3 July 1936 - 28 June 1953: 11:11.7 (3 July 1936; København, DEN), 10:52.5 (13 August 1941; København, DEN); 1500 m freestyle – 3 July 1938 - 23 July 1955: 21:45.7 (3 July 1938; Helsingor, DEN), 21:10.1 (11 August 1940; Helsingor, DEN), 20:57.0 (20 August 1941; København, DEN); 200 m backstroke – 14 February 1937 - 17 April 1938: 2:41.3 (14 February 1937; Århus, DEN); 4×100 m freestyle relay – 8 February 1938 - 27 April 1952: 4:29.7 (8 February 1938; København, DEN), 4:27.6 (7 August 1938; København, DEN)
Emma Igelström	SWE	SWM	2000	100 m breaststroke – 7 July 2002 - 19 April 2008: 1:07.27 (7 July 2002; Landskrona, SWE)
Leonid Ilyichov	RUS URS	SWM	1968	200 m freestyle – 29 April 1967 - 15 August 1969: 1:57.8 (29 April 1967; Nanterre, FRA), 1:57.6 (1 August 1967; Moskva, URS), 1:56.9 (2 April 1968; Tallinn, URS); 4×100 m freestyle relay – 22 March 1966 - 26 August 1966 and 21 September 1967 - 28 August 1972: 3:37.0 (22 March 1966; Moskva, URS), 3:35.6 (21 September 1967; Tbilisi, URS), 3:35.6 tied (3 April 1968; Tallinn, URS), 3:34.2 (17 October 1968; Ciudad de México, MEX), 3:32.3 (10 September 1970; Barcelona, ESP); 4×200 m freestyle relay – 24 August 1966 - 15 July 1967 and 18 April 1969 - 24 August 1969: 8:00.2 (24 August 1966; Utrecht, NED), 7:58.5 (18 April 1969; Magdeburg, GDR); 4×100 m medley relay – 23 March 1966 - 7 November 1967: 4:00.7 (23 March 1966; Moskva, URS)
Andrey Ivanov	RUS	SWM	1996	4×100 m medley relay – 11 September 1994 - 27 August 1995: 3:38.28 (11 September 1994; Roma, ITA)
Vasily Ivanov	RUS EUN	SWM	1992	100 m breaststroke – 11 June 1991 - 20 August 1991: 1:01.45 tied (11 June 1991; Moskva, URS); 4×100 m medley relay – 31 July 1992 - 11 September 1994: 3:38.56 (31 July 1992; Barcelona, ESP)
Roman Ivanovsky	RUS	SWM	1996	4×100 m medley relay – 27 April 1996 - 23 September 2000 and 27 July 2003 - 24 March 2008: 3:37.48 (27 April 1996; Moskva, RUS), 3:34.72 (27 July 2003; Barcelona, ESP)
Dan Izotov	RUS	SWM	2008—2016	4×200 m freestyle relay – 13 August 2008 - present: 7:03.70 (13 August 2008; Beijing, CHN), 6:59.15 (31 July 2009; Roma, ITA)
Jo Jackson	GBR	SWM	2004—2012	400 m freestyle – 16 March 2009 - 27 June 2009: 4:00.66 (16 March 2009; Sheffield, GBR); 4×200 m freestyle relay – 31 July 2009 - present: 7:45.51 (31 July 2009; Roma, ITA)
Else Jacobsen	DEN	SWM	1928—1932	100 m breaststroke – 27 August 1927 - 9 June 1928 and 10 April 1932 - 15 January 1935: 1:26.6 (27 August 1927; Bergen, NOR), 1:26.2 (10 April 1932; København, DEN), 1:26.0 (11 May 1932; Stockholm, SWE), 1:25.8 (30 April 1933; København, DEN); 200 m breaststroke – 20 August 1927 - 15 April 1928 and 11 May 1932 - 16 March 1935: 3:16.6 (20 August 1927; Oslo, NOR), 3:03.4 (11 May 1932; Stockholm, SWE)
Uwe Jacobsen	GER FRG	SWM	1960—1964	4×100 m freestyle relay – 24 May 1962 - 10 August 1962: 3:45.5 (24 May 1962; Moskva, URS)
Hilda James	GBR	SWM	1920	400 m freestyle – 29 July 1921 - 2 September 1927: 6:16.6 (29 July 1921; Leeds, GBR)
Alex Jany	FRA	SWM/WPO	1948—1960	100 m freestyle – 12 June 1946 - 31 August 1955: 56.7 (12 June 1946; Marseille, FRA), 56.6 (18 September 1946; Marseille, FRA), 56.2 (10 September 1947; Monte Carlo, MON), 55.8 (15 September 1947; Menton, FRA); 200 m freestyle – 15 September 1945 - 4 March 1955: 2:09.8 (15 September 1945; Marseille, FRA), 2:05.4 (20 September 1946; Marseille, FRA); 400 m freestyle – 21 September 1946 - 10 July 1951: 4:45.8 (21 September 1946; Marseille, FRA), 4:35.2 (12 September 1947; Monte Carlo, MON); 4×100 m freestyle relay – 15 December 1946 - 20 August 1949: 3:58.4 (15 December 1946; Toulouse, FRA); 4×200 m freestyle relay – 24 September 1946 - 14 September 1947 and 2 August 1951 - 4 November 1956: 9:05.4 (24 September 1946; Cannes, FRA), 9:03.4 (12 September 1947; Monte Carlo, MON), 8:33.0 (2 August 1951; Marseille, FRA); 3×100 m medley relay – 8 August 1946 - 13 May 1951 and 25 March 1952 - 31 December 1952: 3:16.9 (8 August 1946; Toulouse, FRA), 3:12.3 (16 September 1946; Marseille, FRA), 3:09.6 (25 March 1952; Troyes, FRA); 4×100 m medley relay – 22 March 1953 - 1 April 1953: 4:32.2 (22 March 1953; Charleroi, BEL)
Otylia Jędrzejczak	POL	SWM	2000—2012	200 m butterfly – 19 September 2000 - 23 July 2001 and 4 August 2002 - 19 March 2009: 2:07.81 (19 September 2000; Sydney, AUS), 2:05.78 (4 August 2002; Berlin, GER), 2:05.61 (28 July 2005; Montréal, CAN)
Jan Jiskoot	NED	SWM	1960—1964	100 m butterfly – 18 September 1962 - 25 August 1964: 59.5 (18 September 1962; Paris, FRA)
Jennie Johansson	SWE	SWM	2012—2016	4×100 m medley relay – 9 August 2015 - 3 August 2016: 3:55.24 (9 August 2015; Kazan, RUS)
Per Johansson	SWE	SWM	1980—1988	4×200 m freestyle relay – 14 September 1947 - 19 June 1948: 9:00.5 (14 September 1947; Monte Carlo, MON)
Pierre Joly dit Dumesnil	FRA	SWM	1952	4×100 m medley relay – 22 March 1953 - 17 April 1953: 4:32.2 (22 March 1953; Charleroi, BEL), 4:31.5 (1 April 1953; Troyes, FRA)
Sanja Jovanović	CRO	SWM	2004—2012	50 m backstroke – 22 March 2008 - 22 March 2008 and 21 June 2008 - 25 June 2009: 28.17 (22 March 2008; Eindhoven, NED), 28.05 tied (21 June 2008; Zagreb, CRO)
Mirna Jukic	AUT	SWM	2004—2008	100 m breaststroke – 24 April 2009 - 27 April 2009: 1:07.00 (24 April 2009; Wien, AUT); 200 m breaststroke – 14 August 2008 - 15 August 2008 and 28 February 2009 - 31 July 2009: 2:23.76 (14 August 2008; Beijing, CHN), 2:22.91 (28 February 2009; Wien, AUT), 2:22.46 (25 April 2009; Wien, AUT), 2:22.10 (30 July 2009; Roma, ITA)
Lina Kačiušytė	LTU URS	SWM	1980	200 m breaststroke – 24 August 1978 - 30 March 1979 and 6 April 1979 - 5 June 1985: 2:33.11 (24 August 1978; West Berlin, FRG), 2:31.42 (24 August 1978; West Berlin, FRG), 2:28.36 (6 April 1979; Potsdam, GDR)
Géza Kádas	HUN	SWM	1948—1952	4×100 m freestyle relay – 20 August 1949 - 6 May 1951: 3:56.8 (20 August 1949; Budapest, HUN), 3:55.0 (15 October 1950; Budapest, HUN), 3:53.2 (21 October 1950; Székesfehérvár, HUN); 4×200 m freestyle relay – 19 June 1948 - 10 May 1951 and 13 May 1951 - 2 August 1951: 8:57.4 (19 June 1948; Budapest, HUN), 8:53.6 (2 August 1948; London, GBR), 8:48.4 (3 August 1948; London, GBR), 8:45.9 (13 May 1951; Moskva, URS)
Anna-Karin Kammerling	SWE	SWM	2000—2008	50 m butterfly – 1 July 1999 - 20 May 2000 and 30 July 2002 - 13 June 2007: 26.39 (1 July 1999; Halmstad, SWE), 26.29 (27 July 1999; İstanbul, TUR), 25.57 (30 July 2002; Berlin, GER)
Andrey Kapralov	RUS	SWM	2000—2008	4×100 m freestyle relay – 20 July 2003 - 25 March 2007: 3:14.06 (20 July 2003; Barcelona, ESP)
Simone Karn	GER	SWM	2000	4×100 m medley relay – 29 July 2001 - 24 March 2008: 4:03.06 (29 July 2001; Fukuoka, JPN), 4:01.54 (4 August 2002; Berlin, GER)
József Katona	HUN	SWM	1960—1964	800 m freestyle – 3 July 1960 - 30 April 1961: 9:22.6 (3 July 1960; Budapest, HUN); 1500 m freestyle – 18 June 1960 - 5 August 1962 and 9 August 1964 - 1 August 1965: 17:55.2 (18 June 1960; Ost-Berlin, GDR), 17:53.5 (2 September 1960; Roma, ITA), 17:43.7 (3 September 1960; Roma, ITA), 17:30.0 (9 August 1964; Budapest, HUN), 17:27.0 (13 September 1964; Budapest, HUN)
Klaus Katzur	GDR GER	SWM	1964—1972	4×100 m medley relay – 8 September 1970 - 25 August 1974: 3:54.4 (8 September 1970; Barcelona, ESP), 3:53.8 (4 September 1971; Leipzig, GDR), 3:52.12 (4 September 1972; München, FRG)
Radosław Kawęcki	POL	SWM	2012—2020	200 m backstroke – 2 August 2013 - 21 April 2016: 1:54.24 (2 August 2013; Barcelona, ESP)
Johan Kenkhuis	NED	SWM	2000—2004	4×100 m freestyle relay – 26 July 1999 - 20 July 2003: 3:16.27 (26 July 1999; İstanbul, TUR), 3:14.56 (22 July 2001; Fukuoka, JPN)
Alajos Kenyéry	HUN	SWM	1912	400 m freestyle – 21 April 1912 - 5 June 1912: 5:29.0 (21 April 1912; Magdeburg, GER)
Marie-José Kersaudy	FRA	SWM	1968	400 m freestyle – 20 June 1968 - 1 August 1968: 4:44.3 (20 June 1968; Mourenx, FRA); 1500 m freestyle – 8 March 1969 - 10 September 1969: 18:44.6 (8 March 1969; Noumea, NCL)
Gusztáv Kettesi	HUN	SWM	1948—1952	400 m medley – 24 April 1953 - 24 April 1953 and 26 July 1953 - 29 October 1953: 5:38.7 (24 April 1953; Budapest, HUN), 5:32.1 (26 July 1953; Budapest, HUN)
Hanna Khlistunova	UKR	SWM	2008	100 m breaststroke – 27 March 2007 - 19 April 2008: 1:07.27 tied (27 March 2007; Melbourne, AUS)
Pavlo Khnykin	UKR EUN	SWM	1992—2004	4×100 m freestyle relay – 23 August 1991 - 23 July 1996: 3:17.11 (23 August 1991; Athina, GRE); 4×100 m medley relay – 31 July 1992 - 11 September 1994: 3:38.56 (31 July 1992; Barcelona, ESP)
Klára Killermann-Bartos	HUN	SWM	1952—1960	4×100 m medley relay – 24 July 1953 - 16 August 1954: 5:10.8 (24 July 1953; Budapest, HUN), 5:09.2 (10 August 1953; Bucharest, ROU), 5:07.8 (3 August 1954; Budapest, HUN)
Grigory Kiselyov	RUS URS	SWM	1960	4×100 m medley relay – 6 August 1960 - 11 September 1961: 4:14.0 (6 August 1960; Moskva, URS)
Ina Kleber	GDR	SWM	1980	50 m backstroke – 22 December 1982 - 18 December 1983: 29.67 (22 December 1982; Ost-Berlin, GDR); 100 m backstroke – 24 August 1984 - 22 August 1991: 1:00.59 (24 August 1984; Moskva, URS); 4×100 m medley relay – 26 August 1983 - 29 July 2001: 4:05.79 (26 August 1983; Roma, ITA), 4:03.69 (24 August 1984; Moskva, RUS)
Hans-Joachim Klein	GER FRG	SWM	1960—1964	200 m freestyle – 13 October 1963 - 29 April 1967: 2:00.2 (13 October 1963; Tokyo, JPN), 1:58.2 (24 May 1964; Dortmund, FRG); 4×100 m freestyle relay – 24 May 1962 - 10 August 1962: 3:45.5 (24 May 1962; Moskva, URS); 4×100 m medley relay – 28 September 1963 - 17 May 1964: 4:07.6 (28 September 1963; Dortmund, FRG)
Herbert Klein	GER FRG	SWM	1952—1956	100 m breaststroke – 17 February 1952 - 1 January 1953: 1:05.8 (17 February 1952; Norderney, FRG); 200 m breaststroke – 4 December 1949 - 27 July 1950 and 7 November 1950 - 1 January 1953: 2:35.3 (4 December 1949; München, GER), 2:34.5 (25 March 1950; Reutlingen, GER), 2:33.8 (7 November 1950; Uppsala, SWE), 2:27.3 (9 June 1951; München, FRG)
Yana Klochkova	UKR	SWM	2000—2008	200 m medley – 19 September 2000 - 17 March 2009: 2:10.68 (19 September 2000; Sydney, AUS); 400 m medley – 16 September 2000 - 5 April 2008: 4:33.59 (16 September 2000; Sydney, AUS)
Christiane Knacke	GDR	SWM	1980	100 m butterfly – 28 August 1977 - 3 July 1978: 59.78 (28 August 1977; Ost-Berlin, GDR)
Annegret Kober	FRG	SWM	1972	200 m backstroke – 4 September 1972 - 11 July 1973: 2:23.35 (4 September 1972; München, FRG)
Marco Koch	GER	SWM	2012—2020	200 m breaststroke – 28 June 2009 - 30 July 2009: 2:08.33 (28 June 2009; Berlin, GER)
Ada Kok	NED	SWM	1964—1968	100 m butterfly – 24 August 1962 - 31 August 1972: 1:09.0 (24 August 1962; Leipzig, GDR), 1:08.7 (23 March 1963; Durban, RSA), 1:06.1 (1 September 1963; Soetsduinen, NED), 1:05.1 (30 May 1964; Blackpool, GBR), 1:04.5 (14 August 1965; Budapest, HUN); 200 m butterfly – 21 August 1965 - 12 September 1970: 2:25.8 (21 August 1965; Leiden, NED), 2:25.3 (12 September 1965; Groningen, NED), 2:22.5 (2 August 1967; Groningen, NED), 2:21.0 (25 August 1967; Blackpool, GBR); 4×100 m medley relay – 28 June 1964 - 20 September 1967 and 20 April 1968 - 23 August 1969: 4:39.1 (28 June 1964; Groningen, NED), 4:37.0 (18 October 1964; Tokyo, JPN), 4:36.4 (25 August 1966; Utrecht, NED), 4:35.5 (20 April 1968; Stockholm, SWE)
Gretta Kok	NED	SWM	1960—1964	4×100 m medley relay – 25 August 1966 - 20 September 1967: 4:36.4 (25 August 1966; Utrecht, NED)
Kliment Kolesnikov	ROC RUS	SWM	2018—2020	50 m backstroke – 4 August 2018 - present: 24.00 (4 August 2018; Glasgow, GBR), 23.93 (17 May 2021; Budapest, HUN), 23.80 (18 May 2021; Budapest, HUN)
Leonid Kolesnikov	URS UZB	SWM	1960	100 m breaststroke – 5 May 1961 - 5 July 1961: 1:11.4 (5 May 1961; Moskva, URS); 200 m breaststroke – 19 July 1958 - 11 August 1959 and 25 June 1961 - 13 April 1962: 2:39.3 (19 July 1958; Moskva, URS), 2:37.3 (25 June 1961; Moskva, URS), 2:35.6 (5 September 1961; Lviv, URS); 4×100 m medley relay – 6 August 1960 - 21 August 1962: 4:14.0 (6 August 1960; Moskva, URS), 4:11.2 (11 September 1961; Moskva, URS), 4:11.1 (24 April 1962; Moskva, URS)
Dmitry Komornikov	RUS	SWM	2000—2008	200 m breaststroke – 14 June 2003 - 12 August 2008: 2:09.52 (14 June 2003; Barcelona, ESP)
Sergey Koplyakov	BLR URS	SWM	1976—1980	200 m freestyle – 7 April 1979 - 1 August 1982: 1:49.83 (7 April 1979; Potsdam, GDR), 1:49.81 (21 July 1980; Moskva, URS); 4×100 m freestyle relay – 7 March 1980 - 29 July 1981 and 21 August 1981 - 25 August 1983: 3:24.59 (7 March 1980; Leningrad, URS), 3:21.69 (21 August 1981; Kyiv, URS), 3:21.48 (8 September 1981; Split, YUG); 4×200 m freestyle relay – 21 July 1976 - 23 August 1983: 7:33.21 (21 July 1976; Montréal, CAN), 7:27.97 (21 July 1976; Montréal, CAN), 7:25.71 (8 March 1980; Leningrad, URS), 7:23.50 (23 July 1980; Moskva, URS); 4×100 m medley relay – 8 April 1979 - 23 August 1981: 3:46.20 (8 April 1979; Potsdam, GDR), 3:45.99 (20 August 1979; Moskva, URS), 3:45.92 (24 July 1980; Moskva, URS)
Andrey Korneyev	RUS	SWM	1996	4×100 m medley relay – 27 August 1995 - 27 April 1996: 3:38.11 (27 August 1995; Wien, AUT)
Yevgeny Korotyshkin	RUS	SWM	2004—2012	4×100 m medley relay – 24 March 2008 - 1 July 2008 and 17 August 2008 - 2 August 2009: 3:34.25 (24 March 2008; Eindhoven, NED), 3:31.92 (17 August 2008; Beijing, CHN)
Joke de Korte	NED	SWM	1952	4×100 m medley relay – 27 November 1954 - 17 July 1955 and 8 December 1956 - 1 May 1957: 5:02.1 (27 November 1954; Rotterdam, NED), 4:53.1 (8 December 1956; Zwolle, NED)
Dirk Korthals	FRG	SWM	1984	4×200 m freestyle relay – 30 July 1984 - 19 August 1987: 7:15.73 (30 July 1984; Los Angeles, USA)
Paweł Korzeniowski	POL	SWM	2004—2020	200 m butterfly – 21 March 2008 - 12 August 2008: 1:54.38 (21 March 2008; Eindhoven, NED)
Marina Koshevaya	RUS URS	SWM	1976	200 m breaststroke – 21 July 1976 - 7 April 1978: 2:33.35 (21 July 1976; Montréal, CAN)
Vladimir Kosinsky	RUS URS	SWM	1964—1972	100 m breaststroke – 8 November 1967 - 18 April 1968: 1:06.7 (8 November 1967; Leningrad, URS); 200 m breaststroke – 3 April 1968 - 22 March 1969: 2:27.4 (3 April 1968; Tallinn, URS)
Rosemarie Kother-Gabriel	GDR	SWM	1972—1976	100 m butterfly – 21 August 1974 - 9 June 1975: 1:02.09 (21 August 1974; Wien, AUT), 1:01.99 (22 August 1974; Wien, AUT), 1:01.88 (1 September 1974; Concord, USA); 200 m butterfly – 10 July 1972 - 9 April 1978: 2:19.5 (10 July 1972; Leipzig, GDR), 2:18.32 (4 September 1972; München, FRG), 2:17.11 (4 September 1972; München, FRG), 2:16.03 (13 July 1973; Ost-Berlin, GDR), 2:15.45 (8 September 1973; Beograd, YUG), 2:13.76 (8 September 1973; Beograd, YUG), 2:13.60 (14 March 1976; Tallinn, URS), 2:12.84 (5 June 1976; Ost-Berlin, GDR), 2:11.22 (5 June 1976; Ost-Berlin, GDR); 4×100 m freestyle relay – 2 June 1976 - 25 July 1976: 3:48.80 (2 June 1976; Ost-Berlin, GDR); 4×100 m medley relay – 4 September 1973 - 5 June 1976: 4:16.84 (4 September 1973; Beograd, YUG), 4:13.78 (24 August 1974; Wien, AUT)
Ágnes Kovács	HUN	SWM	1996—2004	50 m breaststroke – 21 May 2000 - 26 July 2001: 31.34 (21 May 2000; Monte Carlo, MON); 100 m breaststroke – 17 September 2000 - 7 July 2002: 1:07.79 (17 September 2000; Sydney, AUS); 200 m breaststroke – 23 July 1996 - 14 August 2008: 2:26.57 (23 July 1996; Atlanta, USA), 2:25.31 (1 April 1997; Budapest, HUN), 2:24.90 (20 August 1997; Sevilla, ESP), 2:24.03 (20 September 2000; Sydney, AUS)
Edit Kovács	HUN	SWM	1968—1972	4×100 m freestyle relay – 13 July 1968 - 26 October 1968 and 24 June 1969 - 11 September 1970: 4:07.5 (13 July 1968; Budapest, HUN), 4:02.6 (24 June 1969; Budapest, HUN)
Oľga Kozičová	TCH SVK	SWM	1968	200 m freestyle – 6 July 1968 - 3 August 1968: 2:14.4 (6 July 1968; Santa Clara, USA)
Gunvor Kraft-Borup (DNS)	DEN	SWM	1948	4×100 m freestyle relay – 8 February 1938 - 27 April 1952: 4:29.7 (8 February 1938; København, DEN) (competed as Gunvor Kraft), 4:27.6 (7 August 1938; København, DEN) (competed as Gunvor Kraft)
Sergey Krasyuk	URS UKR	SWM	1980	4×100 m freestyle relay – 7 March 1980 - 29 July 1981 and 21 August 1981 - 21 August 1987: 3:24.59 (7 March 1980; Leningrad, URS), 3:21.69 (21 August 1981; Kyiv, URS), 3:21.48 (8 September 1981; Split, YUG), 3:20.88 (25 August 1983; Roma, ITA), 3:20.19 (23 August 1984; Moskva, URS); 4×100 m medley relay – 23 August 1981 - 12 September 1981: 3:44.79 (23 August 1981; Kyiv, URS), 4×100 m medley relay – 12 September 1981 - 7 August 1982: 3:44.23 (12 September 1981; Split, YUG)
Angelika Kraus	FRG	SWM	1968—1972	200 m backstroke – 6 August 1970 - 22 August 1970: 2:27.1 (6 August 1970; Würselen, FRG)
Michael Kraus	FRG	SWM	1976	4×100 m medley relay – 22 July 1976 - 8 April 1979: 3:47.29 (22 July 1976; Montréal, CAN)
Barbara Krause	GDR	SWM	1980	100 m freestyle – 5 July 1978 - 19 August 1986: 55.41 (5 July 1978; Ost-Berlin, GDR), 54.98 (20 July 1980; Moskva, URS), 54.79 (21 July 1980; Moskva, URS); 200 m freestyle – 2 July 1978 - 23 July 1980: 1:59.04 (2 July 1978; Ost-Berlin, GDR), 200 m freestyle – 23 July 1980 - 23 May 1984: 1:58.33 (23 July 1980; Moskva, URS); 400 m freestyle – 14 March 1976 - 20 July 1976: 4:17.00 (14 March 1976; Tallinn, URS), 4:11.69 (3 June 1976; Ost-Berlin, GDR); 4×100 m freestyle relay – 14 March 1975 - 25 July 1976 and 27 July 1980 - 21 August 1984: 3:52.23 (14 March 1975; Dresden, GDR), 3:49.37 (27 July 1975; Cali, COL), 3:48.80 (2 June 1976; Ost-Berlin, GDR), 3:45.19 (27 July 1980; Moskva, URS), 3:42.71 (27 July 1980; Moskva, URS); 4×100 m medley relay – 5 June 1976 - 18 July 1976: 4:13.41 (5 June 1976; Ost-Berlin, GDR)
Roswitha Krause	GDR	HBL/SWM	1968—1980	4×100 m freestyle relay – 26 October 1968 - 24 June 1969: 4:05.7 (26 October 1968; Ciudad de México, MEX)
Vladimir Kravchenko	RUS URS	SWM	1968	200 m medley – 15 April 1970 - 11 July 1970: 2:13.0 (15 April 1970; Novosibirks, URS)
Vladimir Krivtsov	AZE URS	SWM	1972	4×100 m freestyle relay – 14 March 1975 - 12 March 1976: 3:28.89 (14 March 1975; Dresden, GDR); 4×200 m freestyle relay – 15 March 1975 - 25 July 1975: 7:39.52 (15 March 1975; Dresden, GDR)
Ranomi Kromowidjojo	NED	SWM	2008—2020	4×100 m freestyle relay – 18 March 2008 - present: 3:33.62 (18 March 2008; Eindhoven, NED), 3:31.72 (26 July 2009; Roma, ITA); 4×100 m freestyle mixed relay – 8 August 2015 - present: 3:23.10 (8 August 2015; Kazan, RUS), 3:21.81 (29 July 2017; Budapest, HUN)
Jens Kruppa	GER	SWM	2000—2004	4×100 m medley relay – 23 September 2000 - 27 July 2003: 3:35.88 (23 September 2000; Sydney, AUS)
Andrey Krylov	RUS	SWM	2008	200 m freestyle – 19 July 1976 - 7 April 1979: 1:50.73 (19 July 1976; Montréal, CAN); 4×100 m freestyle relay – 12 March 1976 - 16 August 1977 and 7 March 1980 - 29 July 1981: 3:26.60 (12 March 1976; Tallinn, URS), 3:24.59 (7 March 1980; Leningrad, URS); 4×200 m freestyle relay – 15 March 1975 - 25 July 1975 and 13 March 1976 - 23 August 1983: 7:39.52 (15 March 1975; Dresden, GDR), 7:34.70 (13 March 1976; Tallinn, URS), 7:27.97 (21 July 1976; Montréal, CAN), 7:25.71 (8 March 1980; Leningrad, URS), 7:23.50 (23 July 1980; Moskva, URS)
Georgijs Kuļikovs	LAT URS	SWM	1968—1972	4×100 m freestyle relay – 21 September 1967 - 28 August 1972: 3:35.6 (21 September 1967; Tbilisi, URS), 3:35.6 tied (3 April 1968; Tallinn, URS), 3:34.2 (17 October 1968; Ciudad de México, MEX), 3:32.3 (10 September 1970; Barcelona, ESP); 4×200 m freestyle relay – 18 April 1969 - 12 September 1970: 7:58.5 (18 April 1969; Magdeburg, GDR), 7:54.5 (24 August 1969; Würzburg, FRG)
Ursula Küper	GDR GER	SWM	1960—1964	100 m breaststroke – 14 July 1960 - 1 July 1961: 1:19.0 (14 July 1960; Leipzig, GDR); 4×100 m medley relay – 15 July 1960 - 6 August 1961 and 24 April 1962 - 17 June 1962: 4:46.7 (15 July 1960; Leipzig, GDR), 4:45.0 (24 April 1962; Moskva, URS)
Ernst Küppers	GER	SWM	1928—1932	100 m backstroke – 19 June 1927 - 28 November 1936: 1:12.0 (19 June 1927; Düsseldorf, GER), 1:11.2 (7 October 1928; Krefeld, GER), 1:08.8 (19 November 1929; Ruhrort, GER); 200 m backstroke – 2 December 1928 - 25 January 1934: 2:40.7 (2 December 1928; Aachen, GER), 2:39.7 (18 January 1930; Bremen, GER)
Ernst-Joachim Küppers	GER FRG	SWM	1964	100 m backstroke – 16 August 1964 - 23 March 1966: 1:01.0 (16 August 1964; West Berlin, FRG), 1:00.8 (29 August 1964; Dortmund, FRG); 200 m backstroke – 23 July 1962 - 11 May 1965: 2:15.0 (23 July 1962; San Remo, ITA), 2:14.8 (16 August 1964; West Berlin, FRG), 2:12.6 (22 August 1964; Magdeburg, GDR); 4×100 m medley relay – 28 September 1963 - 17 May 1964: 4:07.6 (28 September 1963; Dortmund, FRG)
Vyacheslav Kurennoy	RUS URS	WPO	1956—1960	4×100 m freestyle relay – 23 January 1954 - 3 November 1956: 3:50.4 (23 January 1954; Moskva, URS), 3:49.3 (9 March 1954; Stockholm, SWE)
Walter Kusch	FRG	SWM	1972—1976	100 m breaststroke – 29 August 1972 - 28 July 1973: 1:05.78 (29 August 1972; München, FRG); 200 m breaststroke – 20 July 1972 - 14 August 1972: 2:24.55 (20 July 1972; München, FRG); 4×100 m medley relay – 25 August 1974 - 8 April 1979: 3:51.57 (25 August 1974; Wien, AUT), 3:47.29 (22 July 1976; Montréal, CAN)
Igor Kushpelev	RUS URS	SWM	1976	800 m freestyle – 4 June 1976 - 6 June 1976: 8:16.55 (4 June 1976; Kyiv, URS)
Valentin Kuzmin	RUS URS	SWM	1960—1968	200 m butterfly – 23 August 1962 - 23 August 1962 and 18 May 1964 - 1 August 1967: 2:14.2 (23 August 1962; Leipzig, GDR), 2:11.2 (18 May 1964; Ost-Berlin, GDR), 2:10.4 (22 August 1965; Budapest, HUN), 2:10.2 (25 August 1966; Utrecht, NED); 4×100 m medley relay – 24 April 1962 - 21 August 1962 and 17 May 1964 - 7 November 1967: 4:11.1 (24 April 1962; Moskva, URS), 4:02.8 (17 May 1964; Ost-Berlin, GDR), 4:00.7 (23 March 1966; Moskva, URS)
Viktor Kuznetsov	RUS URS	SWM	1980	4×100 m medley relay – 8 April 1979 - 7 August 1982: 3:46.20 (8 April 1979; Potsdam, GDR), 3:45.99 (20 August 1979; Moskva, URS), 3:45.92 (24 July 1980; Moskva, URS), 3:44.79 (23 August 1981; Kyiv, URS), 3:44.23 (12 September 1981; Split, YUG)
Camille Lacourt	FRA	SWM	2012—2016	100 m backstroke – 10 August 2010 - present: 52.11 (10 August 2010; Budapest, HUN)
Corrie Laddé	NED	SWM	1932	4×100 m freestyle relay – 12 August 1932 - 12 November 1933: 4:47.5 (12 August 1932; Los Angeles, USA)
Tineke Lagerberg	NED	SWM	1960	200 m butterfly – 30 December 1956 - 1 May 1957 and 13 September 1958 - 12 June 1960: 2:42.3 (30 December 1956; Naarden, NED), 2:38.1 (19 March 1957; Naarden, NED), 2:38.9 (13 September 1958; Naarden, NED); 4×100 m freestyle relay – 6 September 1958 - 11 June 1960: 4:22.9 (6 September 1958; Budapest, HUN); 4×100 m medley relay – 8 December 1956 - 1 May 1957 and 26 July 1959 - 15 July 1960: 4:53.1 (8 December 1956; Zwolle, NED), 4:51.5 (26 July 1959; Waalwijk, NED), 4:47.3 (12 June 1960; Leipzig, GDR)
Yevgeny Lagunov	RUS	SWM	2004—2012	4×200 m freestyle relay – 13 August 2008 - 31 July 2009: 7:03.70 (13 August 2008; Beijing, CHN); 4×100 m medley relay – 17 August 2008 - 2 August 2009: 3:31.92 (17 August 2008; Beijing, CHN)
Giorgio Lamberti	ITA	SWM	1988—1992	100 m freestyle – 17 August 1989 - 4 August 1991: 49.24 (17 August 1989; Bonn, GER); 200 m freestyle – 15 August 1989 - 18 December 1999: 1:46.69 (15 August 1989; Bonn, GER)
Hans Lampe	FRG	SWM	1972	100 m butterfly – 6 September 1970 - 16 April 1971: 57.7 (6 September 1970; Barcelona, ESP), 57.5 (8 September 1970; Barcelona, ESP)
Werner Lampe	FRG	SWM	1972—1976	200 m freestyle – 29 August 1972 - 4 September 1973: 1:53.99 (29 August 1972; München, FRG); 800 m freestyle – 7 August 1970 - 11 September 1970 and 22 August 1971 - 29 August 1972: 8:41.6 (7 August 1970; Würselen, FRG), 8:38.1 (22 August 1971; Waldkraiburg, FRG); 1500 m freestyle – 7 August 1970 - 11 September 1970: 16:23.9 (7 August 1970; Würselen, FRG); 4×200 m freestyle relay – 12 September 1970 - 15 March 1975 and 25 July 1975 - 13 March 1976: 7:49.5 (12 September 1970; Barcelona, ESP), 7:41.69 (29 August 1972; München, FRG), 7:39.70 (21 August 1974; Wien, AUT), 7:39.44 (25 July 1975; Cali, COL)
Jutta Langenau	GDR GER	SWM	1956	100 m butterfly – 31 August 1954 - 22 January 1955: 1:16.6 (31 August 1954; Turin, ITA)
László Lantos	HUN	SWM	1960	4×100 m freestyle relay – 18 September 1960 - 24 May 1962: 3:46.9 (18 September 1960; Budapest, HUN)
Göran Larsson	SWE	SWM	1952	4×100 m medley relay – 17 April 1953 - 13 May 1953: 4:30.8 (17 April 1953; Lund, SWE), 4:27.8 (24 April 1953; Boras, SWE)
Gunnar Larsson	SWE	SWM	1968—1972	400 m freestyle – 7 September 1970 - 6 September 1973: 4:02.6 (7 September 1970; Barcelona, ESP); 200 m medley – 12 September 1970 - 24 August 1974: 2:09.3 (12 September 1970; Barcelona, ESP), 2:07.17 (3 September 1972; München, FRG); 400 m medley – 7 September 1970 - 5 September 1973: 4:41.8 (7 September 1970; Barcelona, ESP), 4:36.2 (8 September 1970; Barcelona, ESP), 4:34.99 (30 August 1972; München, FRG), 4:31.98 (30 August 1972; München, FRG)
Béla Las-Torres	HUN	SWM	1908—1912	400 m freestyle – 5 June 1912 - 26 September 1912: 5:28.4 (5 June 1912; Budapest, HUN)
Adrie Lasterie	NED	SWM	1964	200 m freestyle – 26 August 1961 - 27 July 1965: 2:18.2 (26 August 1961; Blackpool, GBR); 400 m medley – 29 July 1962 - 15 October 1964: 5:33.1 (29 July 1962; The Hague, NED), 5:27.8 (25 August 1962; Leipzig, GDR); 4×100 m freestyle relay – 25 August 1962 - 8 August 1963: 4:15.1 (25 August 1962; Leipzig, GDR)
Tina Lek'veishvili	GEO URS	SWM	1968—1972	100 m backstroke – 6 September 1970 - 11 April 1971: 1:07.8 (6 September 1970; Barcelona, ESP)
Árpád Lengyel	HUN	SWM	1936	4×100 m freestyle relay – 26 June 1937 - 15 August 1937: 4:10.2 (26 June 1937; Budapest, HUN); 4×200 m freestyle relay – 14 July 1935 - 24 September 1946: 9:14.8 (14 July 1935; Budapest, HUN), 9:10.8 (23 August 1936; Budapest, HUN)
Magda Lenkei	HUN	SWM	1936	100 m freestyle – 30 May 1931 - 7 August 1932: 1:09.8 (30 May 1931; Budapest, HUN)
Luca Leonardi	ITA	SWM	2016	4×100 m freestyle mixed relay – 22 August 2014 - 8 August 2015: 3:25.02 (22 August 2014; Berlin, GER)
Dmitry Lepikov	RUS EUN	SWM	1992	4×200 m freestyle relay – 27 July 1992 - 27 July 2001: 7:11.95 (27 July 1992; Barcelona, ESP)
Amaury Leveaux	FRA	SWM	2004—2012	50 m freestyle – 26 April 2008 - 26 April 2009: 21.38 (26 April 2008; Dunkerque, FRA); 4×100 m freestyle relay – 19 June 2008 - present: 3:12.54 (19 June 2008; Paris, FRA), 3:12.36 (10 August 2008; Beijing, CHN), 3:08.32 (11 August 2008; Beijing, CHN)
Per-Ola Lindberg	SWE	SWM	1960—1964	100 m freestyle – 9 August 1961 - 10 August 1962 and 18 July 1963 - 31 August 1963: 55.5 (9 August 1961; Halmstad, SWE), 54.3 (18 July 1963; Baastad, SWE); 4×200 m freestyle relay – 22 August 1962 - 6 September 1964: 8:18.4 (22 August 1962; Leipzig, GDR), 8:16.2 (17 August 1963; Örebro, SWE)
Helga Lindner	GDR	SWM	1968—1972	200 m butterfly – 12 September 1970 - 10 July 1972: 2:20.2 (12 September 1970; Barcelona, ESP); 4×100 m medley relay – 23 August 1969 - 18 April 1972: 4:34.8 (23 August 1969; Budapest, HUN), 4:30.2 (15 April 1970; Novosibirsk, URS), 4:30.1 (9 September 1970; Barcelona, ESP)
Karla Linke	GDR	SWM	1976	200 m breaststroke – 19 August 1974 - 21 July 1976: 2:37.44 (19 August 1974; Wien, AUT), 2:34.99 (19 August 1974; Wien, AUT)
Oleh Lisohor	UKR	SWM	2000—2008	50 m breaststroke – 29 July 2001 - 12 April 2002 and 2 August 2002 - 28 July 2009: 27.52 (29 July 2001; Fukuoka, JPN), 27.18 (2 August 2002; Berlin, GER)
Mária Littomeritzky	HUN	SWM	1948—1956	4×100 m freestyle relay – 27 April 1952 - 1 August 1952: 4:27.2 (27 April 1952; Moskva, URS); 4×100 m medley relay – 3 August 1954 - 16 August 1954: 5:07.8 (3 August 1954; Budapest, HUN)
Elisabeth Ljunggren-Morris	SWE	SWM	1964—1968	400 m freestyle – 20 April 1968 - 20 June 1968 and 1 August 1968 - 4 August 1968: 4:45.4 (20 April 1968; Stockholm, SWE), 4:42.4 (1 August 1968; Lincoln, USA); 800 m freestyle – 4 August 1967 - 16 August 1968: 9:53.3 (4 August 1967; Landskrona, SWE), 9:45.0 (1 August 1968; Lincoln, USA); 1500 m freestyle – 17 September 1967 - 8 March 1969: 18:49.9 (17 September 1967; Stockholm, SWE)
Nikita Lobintsev	RUS	SWM	2008—2016	4×200 m freestyle relay – 13 August 2008 - present: 7:03.70 (13 August 2008; Beijing, CHN), 6:59.15 (31 July 2009; Roma, ITA)
Sven Lodziewski	GDR	SWM	1988	200 m freestyle – 15 June 1983 - 21 June 1983: 1:49.30 (15 June 1983; Gera, GDR); 4×100 m freestyle relay – 21 August 1987 - 23 September 1988: 3:19.17 (21 August 1987; Strasbourg, FRA)
Liz Long	GBR	SWM	1964	200 m freestyle – 11 August 1965 - 13 August 1966: 2:16.2 (11 August 1965; Blackpool, GBR), 2:16.1 (13 August 1965; Blackpool, GBR)
Anita Lonsbrough	GBR	SWM	1960—1964	200 m breaststroke – 25 July 1959 - 6 June 1960 and 27 August 1960 - 5 August 1961: 2:50.3 (25 July 1959; Walwijk, NED), 2:49.5 (27 August 1960; Roma, ITA); 4×100 m medley relay – 25 July 1958 - 5 September 1958: 4:54.0 (25 July 1958; Cardiff, GBR)
Vladimir Lopatin	RUS URS	SWM	1952	4×100 m medley relay – 13 May 1953 - 26 January 1954: 4:24.8 (13 May 1953; Moskva, URS)
Martín López-Zubero	ESP	SWM	1988—1996	100 m backstroke – 22 November 1991 - 29 July 1998: 54.67 (22 November 1991; Tuscaloosa, USA); 200 m backstroke – 13 August 1991 - 22 June 2006: 1:57.30 (13 August 1991; Fort Lauderdale, USA), 1:56.57 (23 November 1991; Tuscaloosa, USA)
Sergio López	ESP	SWM	1988—1992	200 m breaststroke – 20 July 1990 - 11 January 1991: 2:12.24 (20 July 1990; Seattle, USA)
Jemma Lowe	GBR	SWM	2008—2012	4×100 m medley relay – 24 March 2008 - 1 August 2009: 3:59.33 (24 March 2008; Eindhoven, NED), 3:59.14 (15 August 2008; Beijing, CHN), 3:57.50 (17 August 2008; Beijing, CHN); 4×100 m medley mixed relay – 19 August 2014 - 5 August 2015: 3:44.02 (19 August 2014; Berlin, GER)
Martin Lundén	SWE	SWM	1948	4×200 m freestyle relay – 14 September 1947 - 19 June 1948: 9:00.5 (14 September 1947; Monte Carlo, MON)
Jan Lundin	SWE	SWM	1964	4×200 m freestyle relay – 17 August 1963 - 6 September 1964: 8:16.2 (17 August 1963; Örebro, SWE), 8:14.3 (6 September 1964; Stockholm, SWE)
Annika Lurz	GER	SWM	2008	4×100 m freestyle relay – 31 July 2006 - 18 March 2008: 3:35.22 (31 July 2006; Budapest, HUN); 4×200 m freestyle relay – 3 August 2006 - 13 August 2008: 7:50.82 (3 August 2006; Budapest, HUN)
Maurice Lusien	FRA	SWM	1948—1952	200 m breaststroke – 27 July 1950 - 7 November 1950: 2:33.9 (27 July 1950; Marseille, FRA); 400 m medley – 24 April 1953 - 26 July 1953 and 18 March 1954 - 22 April 1954: 5:35.6 (24 April 1953; Troyes, FRA), 5:27.3 (18 March 1954; Rheims, FRA); 3×100 m medley relay – 25 March 1952 - 31 December 1952: 3:09.6 (25 March 1952; Troyes, FRA); 4×100 m medley relay – 22 March 1953 - 1 April 1953: 4:32.2 (22 March 1953; Charleroi, BEL)
Odette Lusien	FRA	SWM	1952—1956	4×100 m medley relay – 16 August 1954 - 27 November 1954: 5:06.2 (16 August 1954; Marseille, FRA)
Willy Lützow	GER	SWM	1912	100 m breaststroke – 24 May 1921 - 24 September 1922: 1:16.8 (24 May 1921; Magdeburg, GER)
Francis Luyce	FRA	SWM	1964—1968	800 m freestyle – 21 July 1967 - 7 August 1970: 8:42.0 (21 July 1967; Dinard, USA); 4×200 m freestyle relay – 6 September 1964 - 24 August 1966 and 15 July 1967 - 18 April 1969: 8:06.8 (6 September 1964; Bagnols, FRA), 7:58.6 (15 July 1967; Paris, FRA)
Igor Luzhkovsky	RUS URS	SWM	1960	4×100 m freestyle relay – 23 July 1958 - 18 September 1960: 3:47.4 (23 July 1958; Moskva, URS), 3:47.1 (16 August 1959; Moskva, URS); 4×100 m medley relay – 6 August 1960 - 11 September 1961: 4:14.0 (6 August 1960; Moskva, URS)
Annelies Maas	NED	SWM	1976—1980	1500 m freestyle – 10 July 1977 - 26 August 1979: 16:47.11 (10 July 1977; Santa Clara, USA)
Csilla Madarász-Dobay	HUN	SWM	1960—1964	100 m freestyle – 2 July 1960 - 23 June 1962: 1:02.9 tied (2 July 1960; Budapest, HUN), 1:02.5 (16 July 1960; Budapest, HUN)
Filippo Magnini	ITA	SWM	2004—2016	4×100 m freestyle relay – 25 March 2007 - 19 June 2008: 3:14.04 (25 March 2007; Melbourne, AUS); 4×200 m freestyle relay – 5 August 2006 - 12 August 2008: 7:09.60 (5 August 2006; Budapest, HUN)
Per-Alvar Magnusson	SWE	SWM	1980	4×100 m freestyle relay – 1 September 1979 - 7 March 1980: 3:26.34 (1 September 1979; Tokyo, JPN)
László Magyar	HUN	SWM	1956	4×100 m medley relay – 5 August 1954 - 14 August 1956: 4:18.1 (5 August 1954; Budapest, HUN)
Grégory Mallet	FRA	SWM	2008—2016	4×100 m freestyle relay – 10 August 2008 - 11 August 2008: 3:12.36 (10 August 2008; Beijing, CHN)
Laure Manaudou	FRA	SWM	2004—2012	200 m freestyle – 28 March 2007 - 11 August 2008: 1:55.52 (28 March 2007; Melbourne, AUS); 400 m freestyle – 15 August 2004 - 24 March 2008: 4:05.34 (15 August 2004; Athina, GRE), 4:03.03 (12 May 2006; Tours, FRA), 4:02.13 (6 August 2006; Budapest, HUN); 800 m freestyle – 2 August 2006 - 14 August 2008: 8:19.29 (2 August 2006; Budapest, HUN), 8:18.80 (31 March 2007; Melbourne, AUS); 100 m backstroke – 27 March 2007 - 19 February 2008 and 20 March 2008 - 21 March 2008: 59.87 (27 March 2007; Melbourne, AUS), 59.50 (20 March 2008; Eindhoven, NED)
Claude Mandonnaud	FRA	SWM	1968—1972	200 m freestyle – 13 August 1966 - 16 August 1967 and 3 August 1968 - 18 August 1968: 2:15.5 (13 August 1966; Mourenx, FRA), 2:12.4 (3 August 1968; Paris, FRA); 400 m freestyle – 18 February 1967 - 22 July 1967 and 4 August 1968 - 20 October 1968: 4:46.8 (18 February 1967; Melbourne, AUS), 4:41.1 (4 August 1968; Paris, FRA)
Igor Marchenko	RUS	SWM	2000—2004	4×100 m medley relay – 27 July 2003 - 24 March 2008: 3:34.72 (27 July 2003; Barcelona, ESP)
Matjaž Markič	SLO	SWM	2008	50 m breaststroke – 28 July 2009 - 28 July 2009: 27.16 (28 July 2009; Roma, ITA)
Aleksey Markovsky	RUS URS	SWM	1980	4×100 m freestyle relay – 7 March 1980 - 29 July 1981 and 21 August 1981 - 21 August 1987: 3:24.59 (7 March 1980; Leningrad, URS), 3:21.69 (21 August 1981; Kyiv, URS), 3:21.48 (8 September 1981; Split, YUG), 3:20.88 (25 August 1983; Roma, ITA), 3:20.19 (23 August 1984; Moskva, URS); 4×100 m medley relay – 12 September 1981 - 23 August 1987: 3:44.23 (12 September 1981; Split, YUG), 3:42.86 (7 August 1982; Guayaquil, ECU), 3:42.15 (25 August 1984; Moskva, URS)
John Martin-Dye	GBR	SWM	1960—1964	4×200 m freestyle relay – 29 August 1960 - 21 August 1962: 8:26.9 (29 August 1960; Roma, ITA)
Chiara Masini Luccetti	ITA	SWM	2016	4×100 m medley mixed relay – 19 August 2014: 3:48.57 (19 August 2014; Berlin, GER)
Rie Mastenbroek	NED	SWM	1936—1997	100 m backstroke – 25 November 1934 - 8 September 1936: 1:16.8 (25 November 1934; Düsseldorf, GER), 1:15.8 (27 February 1936; Amsterdam, NED); 200 m backstroke – 20 January 1935 - 2 February 1937: 2:49.6 (20 January 1935; Amsterdam, NED); 4×100 m freestyle relay – 12 November 1933 - 28 March 1934 and 28 March 1934 - 8 February 1938: 4:43.0 (12 November 1933; Amsterdam, NED), 4:41.2 (28 March 1934; Rotterdam, NED), 4:33.3 (14 April 1934; Rotterdam, NED), 4:32.8 (24 May 1936; Rotterdam, NED)
Roland Matthes	GDR	SWM	1968—1976	100 m backstroke – 23 April 1967 - 21 March 1982: 59.8 (23 April 1967; Magdeburg, GDR), 58.4 (21 September 1967; Leipzig, GDR), 58.0 (26 October 1968; Ciudad de México, MEX), 57.8 (23 August 1969; Würzburg, FRG), 57.8 tied (15 April 1970; Novosibirks, URS), 56.9 (8 September 1970; Barcelona, ESP), 56.7 (4 September 1971; Leipzig, GDR), 56.3 (8 April 1972; Moskva, URS), 56.3 tied (9 April 1972; Moskva, URS), 56.30 tied (4 September 1972; München, FRG); 200 m backstroke – 23 April 1967 - 15 March 1980: 2:11.2 (23 April 1967; Magdeburg, GDR), 2:11.1 (28 October 1967; Ciudad de México, MEX), 2:07.9 (8 November 1967; Leipzig, GDR), 2:07.5 (14 August 1968; Leipzig, GDR), 2:07.4 (12 July 1969; Santa Clara, USA), 2:06.4 (29 August 1969; Ost-Berlin, GDR), 2:06.1 (11 September 1970; Barcelona, ESP), 2:05.6 (3 September 1971; Leipzig, GDR), 2:02.8 (10 July 1972; Leipzig, GDR), 2:02.82 (2 September 1972; München, FRG), 2:01.87 (6 September 1973; Beograd, YUG); 100 m butterfly – 16 April 1971 - 31 August 1975: 56.1 (16 April 1971; Halle, GDR), 56.0 (14 July 1971; Ost-Berlin, GDR), 55.7 (3 September 1971; Leipzig, GDR); 200 m medley – 11 July 1970 - 12 September 1970: 2:12.8 (11 July 1970; Brandenburg, GDR); 4×100 m medley relay – 7 November 1967 - 25 August 1974: 3:56.5 (7 November 1967; Leipzig, GDR), 3:54.4 (8 September 1970; Barcelona, ESP), 3:53.8 (4 September 1971; Leipzig, GDR), 3:52.12 (4 September 1972; München, FRG)
Edith Mayne	GBR	SWM	1928	1500 m freestyle – 15 September 1926 - 23 July 1931: 24:00.2 (15 September 1926; Exmouth, GBR)
Viktor Mazanov	RUS URS	SWM	1964—1972	100 m backstroke – 22 September 1963 - 16 August 1964 and 23 March 1966 - 23 April 1967: 1:01.5 (22 September 1963; München, FRG), 1:00.0 (23 March 1966; Moskva, URS); 200 m backstroke – 11 May 1965 - 23 April 1967: 2:12.4 (11 May 1965; Tashkent, URS), 2:11.8 (22 March 1966; Moskva, URS); 4×100 m freestyle relay – 22 March 1966 - 26 August 1966 and 17 October 1968 - 14 March 1975: 3:37.0 (22 March 1966; Moskva, URS), 3:34.2 (17 October 1968; Ciudad de México, MEX), 3:32.3 (10 September 1970; Barcelona, ESP), 3:29.72 (28 August 1972; München, FRG); 4×100 m medley relay – 17 May 1964 - 7 November 1967: 4:02.8 (17 May 1964; Ost-Berlin, GDR), 4:00.7 (23 March 1966; Moskva, URS)
Caitlin McClatchey	GBR	SWM	2004—2012	4×200 m freestyle relay – 30 July 2009 - present: 7:49.04 (30 July 2009; Roma, ITA), 7:45.51 (31 July 2009; Roma, ITA)
Bobby McGregor	GBR	SWM	1964—1968	100 m freestyle – 13 July 1963 - 18 July 1963 and 31 August 1963 - 13 September 1964: 54.4 (13 July 1963; Blackpool, GBR), 54.1 (31 August 1963; Blackpool, GBR), 54.0 (13 September 1963; Blackpool, GBR), 53.9 (22 August 1964; London, GBR)
Folkert Meeuw	FRG	SWM	1968—1976	4×200 m freestyle relay – 12 September 1970 - 29 August 1972 and 21 August 1974 - 15 March 1975: 7:49.5 (12 September 1970; Barcelona, ESP), 7:39.70 (21 August 1974; Wien, AUT); 4×100 m medley relay – 25 August 1974 - 22 July 1976: 3:51.57 (25 August 1974; Wien, AUT)
Helge Meeuw	GER	SWM	2004—2012	50 m backstroke – 25 June 2006 - 2 April 2008: 24.80 tied (25 June 2006; Berlin, GER); 100 m backstroke – 25 June 2006 - 11 August 2008 and 2 August 2009 - 10 August 2010: 53.46 (25 June 2006; Berlin, GER), 53.10 (19 April 2008; Berlin, GER), 52.27 (2 August 2009; Roma, ITA); 200 m backstroke – 22 June 2006 - 5 August 2006: 1:56.34 (22 June 2006; Berlin, GER); 4×100 m medley relay – 2 August 2009 - 28 July 2019: 3:29.48 (2 August 2009; Roma, ITA), 3:28.58 (2 August 2009; Roma, ITA)
Annika Mehlhorn	GER	SWM	2004	200 m butterfly – 23 July 2001 - 4 August 2002: 2:06.97 (23 July 2001; Fukuoka, JPN); 4×100 m medley relay – 29 July 2001 - 4 August 2002 and 1 August 2009 - 24 August 2014: 4:03.06 (29 July 2001; Fukuoka, JPN), 3:55.79 (1 August 2009; Roma, ITA)
Rūta Meilutytė	LTU	SWM	2012—2016	50 m breaststroke – 3 August 2009 - present: 29.48 (3 August 2009; Barcelona, ESP); 100 m breaststroke – 29 July 2012 - present: 1:05.21 (29 July 2012; London, GBR), 1:04.52 (29 July 2013; Barcelona, ESP), 1:04.35 (29 July 2013; Barcelona, ESP)
Katrin Meißner	GDR GER	SWM	1988—2000	4×100 m freestyle relay – 23 July 2001 - 31 July 2006: 3:39.58 (23 July 2001; Fukuoka, JPN), 3:36.00 (29 July 2002; Berlin, GER); 4×100 m medley relay – 29 July 2001 - 4 August 2002: 4:03.06 (29 July 2001; Fukuoka, JPN)
Leonid Meshkov	RUS URS	SWM	1952	100 m breaststroke – 20 December 1949 - 17 February 1952: 1:07.2 (20 December 1949; Moskva, URS), 1:07.0 (23 February 1950; Minsk, URS), 1:06.8 (17 April 1950; Moskva, URS), 1:06.6 (7 January 1951; Moskva, URS), 1:06.5 (5 May 1951; Moskva, URS); 4×100 m freestyle relay – 6 May 1951 - 23 January 1954: 3:53.0 (6 May 1951; Moskva, URS); 4×200 m freestyle relay – 10 May 1951 - 13 May 1951: 8:46.9 (10 May 1951; Moskva, URS); 3×100 m medley relay – 13 May 1951 - 25 March 1952: 3:11.1 (13 May 1951; Moskva, URS)
Caren Metschuck	GDR	SWM	1980	4×100 m freestyle relay – 27 July 1980 - 21 August 1984: 3:45.19 (27 July 1980; Moskva, URS), 3:42.71 (27 July 1980; Moskva, URS); 4×100 m medley relay – 20 July 1980 - 7 August 1982: 4:06.67 (20 July 1980; Moskva, URS)
Vladimir Mikheyev	RUS URS	SWM	1976	4×200 m freestyle relay – 13 March 1976 - 21 July 1976: 7:34.70 (13 March 1976; Tallinn, URS), 7:33.21 (21 July 1976; Montréal, CAN)
Kristóf Milák	HUN	SWM	2018—2020	200 m butterfly – 24 July 2019 - present: 1:54.92 (24 July 2019; Gwangju, KOR)
Hannah Miley	GBR	SWM	2008—2016	200 m medley – 17 March 2009 - 26 April 2009: 2:09.59 (17 March 2009; Sheffield, GBR); 400 m medley – 5 April 2008 - 2 August 2009: 4:33.24 (5 April 2008; Sheffield, GBR), 4:31.33 (20 March 2009; Sheffield, GBR); 4×200 m freestyle relay – 30 July 2009 - 31 July 2009: 7:49.04 (30 July 2009; Roma, ITA)
Hamilton Milton	GBR	SWM	1960	4×200 m freestyle relay – 29 August 1960 - 21 August 1962: 8:26.9 (29 August 1960; Roma, ITA)
Gianni Minervini	ITA	SWM	1984—1992	100 m breaststroke – 20 August 1985 - 17 August 1986: 1:02.61 (20 August 1985; Pesaro, ITA)
Arsens Miskarovs	LAT URS	SWM	1980	4×100 m medley relay – 24 July 1980 - 23 August 1981: 3:45.92 (24 July 1980; Moskva, URS)
György Mitró	HUN	SWM	1948	800 m freestyle – 16 May 1948 - 9 June 1951: 10:01.0 (16 May 1948; Budapest, HUN); 4×200 m freestyle relay – 19 June 1948 - 10 May 1951: 8:57.4 (19 June 1948; Budapest, HUN), 8:53.6 (2 August 1948; London, GBR), 8:48.4 (3 August 1948; London, GBR)
Diana Mocanu	ROU	SWM	2000	100 m backstroke – 18 September 2000 - 27 March 2007: 1:00.21 (18 September 2000; Sydney, AUS)
Anke Möhring	GDR	SWM	1988	400 m freestyle – 17 August 1989 - 15 August 2004: 4:05.84 (17 August 1989; Bonn, GER); 800 m freestyle – 22 August 1987 - 2 August 2006: 8:19.53 (22 August 1987; Strasbourg, FRA); 4×200 m freestyle relay – 18 August 1987 - 3 August 2006: 7:55.47 (18 August 1987; Strasbourg, FRA)
Guy Montserret	FRA	SWM	1956	800 m freestyle – 2 September 1957 - 31 July 1958 and 29 July 1959 - 3 July 1960: 9:28.6 (2 September 1957; Roquebrune, FRA), 9:22.7 (29 July 1959; Al-Jaza'ir, ALG); 1500 m freestyle – 4 September 1957 - 31 July 1958: 18:12.0 (4 September 1957; Cannes, FRA)
Adrian Moorhouse	GBR	SWM	1984—1992	100 m breaststroke – 17 August 1986 - 7 January 1991: 1:02.28 (17 August 1986; Madrid, ESP), 1:02.13 (18 August 1987; Strasbourg, FRA), 1:01.78 (26 August 1988; Orlando, USA), 1:01.49 (15 August 1989; Bonn, GER), 1:01.49 tied (25 January 1990; Auckland, NZL), 1:01.49 tied (26 July 1990; London, GBR)
Gerald Mörken	FRG	SWM	1984	100 m breaststroke – 17 August 1977 - 19 February 1984: 1:02.86 (17 August 1977; Jonköping, SWE)
Alain Mosconi	FRA	SWM	1968—1972	400 m freestyle – 2 July 1967 - 11 July 1969: 4:10.6 (2 July 1967; Monte Carlo, MON), 4:09.2 (4 July 1967; Monte Carlo, MON); 800 m freestyle – 5 July 1967 - 21 July 1967: 8:46.8 (5 July 1967; Monte Carlo, MON); 200 m medley – 20 July 1967 - 6 November 1967: 2:16.3 (20 July 1967; Marseille, FRA); 4×200 m freestyle relay – 15 July 1967 - 18 April 1969: 7:58.6 (15 July 1967; Paris, FRA)
Camille Muffat	FRA	SWM	2008—2012	200 m medley – 26 April 2009 - 26 July 2009: 2:09.37 (26 April 2009; Montpellier, FRA); 4×200 m freestyle relay – 13 August 2008 - 14 August 2008: 7:50.37 (13 August 2008; Beijing, CHN)
Lotte Mühe	GER	SWM	1928	100 m breaststroke – 9 June 1928 - 10 April 1932: 1:26.3 (9 June 1928; Magdeburg, GER); 200 m breaststroke – 15 April 1928 - 22 April 1928 and 15 July 1928 - 20 July 1931: 3:15.8 (15 April 1928; Magdeburg, GER), 3:11.2 (15 July 1928; Berlin, GER)
György Müller	HUN	SWM	1960	4×100 m freestyle relay – 18 September 1960 - 24 May 1962: 3:46.9 (18 September 1960; Budapest, HUN)
Jarmila Müllerová	CZE TCH	SWM	1924	100 m backstroke – 29 July 1923 - 17 July 1927: 1:35.0 (29 July 1923; Prague, TCH)
Rafa Múñoz	ESP	SWM	2008	50 m butterfly – 5 April 2009 - 1 July 2018: 22.43 (5 April 2009; Malaga, ESP); 100 m butterfly – 4 April 2009 - 31 July 2009: 50.58 (4 April 2009; Malaga, ESP), 50.46 (25 April 2009; Montpellier, FRA)
Sándor Nagy	HUN	SWM	1976—1980	800 m freestyle – 20 December 1975 - 13 March 1976: 8:24.80 (20 December 1975; Budapest, HUN)
Artem Nakache	FRA	SWM	1936—1948	100 m breaststroke – 21 June 1941 - 20 December 1949: 1:09.4 (21 June 1941; Toulouse, FRA), 1:08.6 (14 February 1942; Toulouse, FRA); 200 m breaststroke – 6 July 1941 - 4 December 1949: 2:36.8 (6 July 1941; Marseille, FRA); 4×200 m freestyle relay – 24 September 1946 - 12 September 1947: 9:05.4 (24 September 1946; Cannes, FRA); 3×100 m medley relay – 8 August 1946 - 13 May 1951: 3:16.9 (8 August 1946; Toulouse, FRA), 3:12.3 (16 September 1946; Marseille, FRA)
Vladimir Nemshilov	RUS URS	SWM	1968	100 m butterfly – 14 August 1969 - 6 September 1970: 57.8 (14 August 1969; Moskva, URS)
Mie Ø. Nielsen	DEN	SWM	2012—2016	4×100 m medley relay – 24 August 2014 - 9 August 2015 and 3 August 2016 - 30 July 2017: 3:55.62 (24 August 2014; Berlin, GER), 3:55.01 (3 August 2016; Rio de Janeiro, BRA)
Boris Nik'it'ini	GEO URS	SWM	1956—1960	400 m freestyle – 26 August 1957 - 23 July 1958: 4:30.1 (26 August 1957; Moskva, URS); 400 m medley – 15 April 1962 - 24 May 1962: 5:06.9 (15 April 1962; Moskva, URS); 4×100 m freestyle relay – 3 November 1956 - 1 May 1957: 3:48.4 (3 November 1956; Moskva, URS); 4×200 m freestyle relay – 4 November 1956 - 29 August 1960: 8:24.5 (4 November 1956; Moskva, URS), 8:34.7 (3 December 1956; Melbourne, AUS), 8:34.5 (3 August 1957; Moskva, URS), 8:27.1 (14 September 1957; Leipzig, GDR)
Gennady Nikolayev	URS TKM	SWM	1956—1960	4×100 m freestyle relay – 3 November 1956 - 1 May 1957 and 23 July 1958 - 16 August 1959: 3:48.4 (3 November 1956; Moskva, URS), 3:47.4 (23 July 1958; Moskva, URS); 4×200 m freestyle relay – 4 November 1956 - 29 August 1960: 8:24.5 (4 November 1956; Moskva, URS), 8:34.7 (3 December 1956; Melbourne, AUS), 8:34.5 (3 August 1957; Moskva, URS), 8:27.1 (14 September 1957; Leipzig, GDR)
Carola Nitschke	GDR	SWM	1976	100 m breaststroke – 2 June 1976 - 22 July 1976: 1:11.93 (2 June 1976; Ost-Berlin, GDR); 4×100 m medley relay – 5 June 1976 - 18 July 1976: 4:13.41 (5 June 1976; Ost-Berlin, GDR)
Ute Noack	GDR GER	SWM	1964	100 m butterfly – 1 April 1962 - 24 August 1962: 1:10.0 (1 April 1962; Ost-Berlin, GDR), 1:09.8 (14 July 1962; Wittenberg, GDR); 200 m butterfly – 24 September 1964 - 21 August 1965: 2:33.5 (24 September 1964; Ost-Berlin, GDR); 4×100 m medley relay – 24 April 1962 - 28 June 1964: 4:45.0 (24 April 1962; Moskva, URS), 4:44.1 (17 June 1962; Magdeburg, GDR), 4:43.3 (14 July 1962; Wittenberg, GDR), 4:40.1 (23 August 1962; Leipzig, GDR)
Peter Nocke	FRG	SWM	1976	100 m freestyle – 25 July 1976 - 8 September 1977: 51.31 (25 July 1976; Montréal, CAN); 200 m freestyle – 19 August 1974 - 10 March 1976 and 4 June 1976 - 19 July 1976: 1:53.10 (19 August 1974; Wien, AUT), 1:51.86 (4 June 1976; München, FRG); 4×100 m freestyle relay – 16 August 1977 - 1 September 1979: 3:26.57 (16 August 1977; Jonköping, SWE); 4×200 m freestyle relay – 21 August 1974 - 15 March 1975 and 25 July 1975 - 13 March 1976: 7:39.70 (21 August 1974; Wien, AUT), 7:39.44 (25 July 1975; Cali, COL); 4×100 m medley relay – 25 August 1974 - 8 April 1979: 3:51.57 (25 August 1974; Wien, AUT), 3:47.29 (22 July 1976; Montréal, CAN)
Sara Nordenstam	NOR	SWM	2008—2012	200 m breaststroke – 14 August 2008 - 28 February 2009: 2:23.79 (14 August 2008; Beijing, CHN), 2:23.02 (15 August 2008; Beijing, CHN)
Ilona Novák	HUN	SWM	1948—1952	4×100 m freestyle relay – 1 August 1952 - 22 March 1957: 4:24.4 (1 August 1952; Helsinki, FIN); 3×100 m medley relay – 14 October 1950 - 2 December 1950: 3:41.2 (14 October 1950; Budapest, HUN)
Yevgeny Novikov	RUS URS	SWM	1964	4×200 m freestyle relay – 24 August 1966 - 15 July 1967: 8:00.2 (24 August 1966; Utrecht, NED)
Imre Nyéki	HUN	SWM	1948—1952	4×100 m freestyle relay – 20 August 1949 - 6 May 1951: 3:56.8 (20 August 1949; Budapest, HUN), 3:55.0 (15 October 1950; Budapest, HUN), 3:53.2 (21 October 1950; Székesfehérvár, HUN); 4×200 m freestyle relay – 19 June 1948 - 10 May 1951 and 13 May 1951 - 2 August 1951: 8:57.4 (19 June 1948; Budapest, HUN), 8:53.6 (2 August 1948; London, GBR), 8:48.4 (3 August 1948; London, GBR), 8:45.9 (13 May 1951; Moskva, URS); 4×100 m medley relay – 5 August 1954 - 14 August 1956: 4:18.1 (5 August 1954; Budapest, HUN)
Siobhan-Marie O'Connor	GBR	SWM	2012—2016	4×100 m medley mixed relay – 5 August 2015 - 6 August 2018: 3:41.71 (5 August 2015; Kazan, RUS)
Alexander Dale Oen	NOR	SWM	2004—2008	100 m breaststroke – 19 March 2008 - 26 July 2009: 59.76 (19 March 2008; Eindhoven, NED), 59.41 (9 August 2008; Beijing, CHN), 59.16 (10 August 2008; Beijing, CHN)
Per-Olof Olsson	SWE	SWM	1948	4×200 m freestyle relay – 14 September 1947 - 19 June 1948: 9:00.5 (14 September 1947; Monte Carlo, MON)
Per-Olof Östrand	SWE	SWM	1948—1956	4×200 m freestyle relay – 14 September 1947 - 19 June 1948: 9:00.5 (14 September 1947; Monte Carlo, MON); 4×100 m medley relay – 17 April 1953 - 13 May 1953: 4:30.8 (17 April 1953; Lund, SWE), 4:27.8 (24 April 1953; Boras, SWE)
Jeanette Ottesen Gray	DEN	SWM	2004—2020	4×100 m medley relay – 24 August 2014 - 9 August 2015 and 3 August 2016 - 30 July 2017: 3:55.62 (24 August 2014; Berlin, GER), 3:55.01 (3 August 2016; Rio de Janeiro, BRA)
Kristin Otto	GDR	SWM	1988	50 m freestyle – 16 February 1986 - 14 June 1986: 25.62 (16 February 1986; Barcelona, ESP); 100 m freestyle – 19 August 1986 - 3 August 1993: 54.73 (19 August 1986; Madrid, ESP); 200 m freestyle – 23 May 1984 - 18 June 1986: 1:57.75 (23 May 1984; Magdeburg, GDR); 50 m backstroke – 22 September 1988 - 22 May 1997: 29.12 (22 September 1988; Seoul, KOR); 100 m butterfly – 23 September 1988 - 2 July 1999: 59.00 (23 September 1988; Seoul, KOR); 4×100 m freestyle relay – 21 August 1984 - 16 September 2000: 3:42.41 (21 August 1984; Moskva, URS), 3:40.57 (19 August 1986; Madrid, ESP); 4×200 m freestyle relay – 22 August 1983 - 17 August 1986: 8:02.27 (22 August 1983; Roma, ITA); 4×100 m medley relay – 7 August 1982 - 26 August 1983: 4:05.88 (7 August 1982; Guayaquil, ECU)
Puck Oversloot	NED	SWM	1932	4×100 m freestyle relay – 12 August 1932 - 28 March 1934: 4:47.5 (12 August 1932; Los Angeles, USA), 4:43.0 (12 November 1933; Amsterdam, NED)
Éva Pajor	HUN	SWM	1956	4×100 m medley relay – 3 September 1955 - 19 November 1956: 4:57.8 (3 September 1955; Budapest, HUN)
Gregorio Paltrinieri	ITA	OWS/SWM	2012—2020	800 m freestyle – 5 August 2015 - 26 July 2017 and 24 July 2019 - present: 7:40.81 (5 August 2015; Kazan, RUS), 7:39.27 (24 July 2019; Gwangju, KOR); 1500 m freestyle – 20 August 2014 - present: 14:39.93 (20 August 2014; Berlin, GER), 14:39.67 (9 August 2015; Kazan, RUS), 14:34.04 (18 May 2016; London, GBR), 14:33.10 (13 August 2020; Roma, ITA)
Nikolay Pankin	RUS URS	SWM	1968—1976	100 m breaststroke – 4 April 1968 - 29 August 1972: 1:06.7 tied (4 April 1968; Tallinn, URS), 1:06.2 (18 April 1968; Tallinn, URS), 1 05.8 (20 April 1969; Magdeburg, GDR); 200 m breaststroke – 22 March 1969 - 20 July 1972 and 14 August 1972 - 2 September 1972: 2:26.5 (22 March 1969; Minsk, URS), 2:25.4 (19 April 1969; Magdeburg, GDR), 2:24.22 (14 August 1972; Moskva, URS)
Denis Pankratov	RUS EUN	SWM	1992—2000	50 m butterfly – 10 August 1996 - 27 July 2001: 23.68 (10 August 1996; Mulhouse, FRA); 100 m butterfly – 23 August 1995 - 8 July 2000: 52.32 (23 August 1995; Wien, AUT), 52.27 (24 July 1996; Atlanta, USA); 200 m butterfly – 14 June 1995 - 23 July 2001: 1:55.22 (14 June 1995; Canet Roussillon, FRA); 4×100 m medley relay – 11 September 1994 - 23 September 2000: 3:38.28 (11 September 1994; Roma, ITA), 3:38.11 (27 August 1995; Wien, AUT), 3:37.48 (27 April 1996; Moskva, RUS)
Valentin Parinov	URS TKM	SWM	1976	800 m freestyle – 11 August 1973 - 8 September 1973 and 5 July 1977 - 20 August 1977: 8:35.10 (11 August 1973; Leeds, GBR), 8:11.82 (5 July 1977; Dnepropetrovsk, URS); 1500 m freestyle – 4 June 1976 - 20 July 1976: 15:33.59 (4 June 1976; Kyiv, URS)
Magdolna Patóh	HUN	SWM	1968—1972	4×100 m freestyle relay – 13 July 1968 - 26 October 1968 and 24 June 1969 - 11 September 1970: 4:07.5 (13 July 1968; Budapest, HUN), 4:02.6 (24 June 1969; Budapest, HUN)
Adam Peaty	GBR	SWM	2016—2020	50 m breaststroke – 28 July 2014 - present: 26.78 (28 July 2014; Glasgow, GBR), 26.62 (22 August 2014; Berlin, GER), 26.42 (4 August 2015; Kazan, RUS), 26.10 (25 July 2017; Budapest, HUN), 25.95 (25 July 2017; Budapest, HUN); 100 m breaststroke – 17 April 2015 - present: 57.92 (17 April 2015; London, GBR), 57.55 (6 August 2015; Rio de Janeiro, BRA), 57.13 (7 August 2015; Rio de Janeiro, BRA), 57.10 (4 August 2018; Glasgow, GBR), 56.88 (25 July 2019; Gwangju, KOR); 4×100 m medley relay – 28 July 2019 - present: 3:28.10 (28 July 2019; Gwangju, KOR); 4×100 m medley mixed relay – 19 August 2014 - present: 3:44.02 (19 August 2014; Berlin, GER), 3:41.71 (5 August 2015; Kazan, RUS), 3:40.18 (6 August 2018; Glasgow, GBR), 3:38.82 (20 May 2021; Budapest, HUN)
Heidi Pechstein	GDR GER	SWM	1960—1964	400 m medley – 16 April 1961 - 20 August 1961: 5:49.0 (16 April 1961; Leipzig, GDR); 4×100 m medley relay – 15 July 1960 - 28 June 1964: 4:46.7 (15 July 1960; Leipzig, GDR), 4:46.4 (6 August 1961; Budapest, HUN), 4:45.0 (24 April 1962; Moskva, URS), 4:44.1 (17 June 1962; Magdeburg, GDR), 4:43.3 (14 July 1962; Wittenberg, GDR), 4:40.1 (23 August 1962; Leipzig, GDR)
Rikke Møller Pedersen	DEN	SWM	2012—2016	200 m breaststroke – 1 August 2013 - present: 2:19.11 (1 August 2013; Barcelona, ESP); 4×100 m medley relay – 24 August 2014 - 9 August 2015 and 3 August 2016 - 30 July 2017: 3:55.62 (24 August 2014; Berlin, GER), 3:55.01 (3 August 2016; Rio de Janeiro, BRA)
Federica Pellegrini	ITA	IOC/SWM	2004—2021	200 m freestyle – 27 March 2007 - 28 March 2007 and 11 August 2008 - present: 1:56.47 (27 March 2007; Melbourne, AUS), 1:55.45 (11 August 2008; Beijing, CHN), 1:54.82 (13 August 2008; Beijing, CHN), 1:54.47 (8 March 2009; Riccione, ITA), 1:53.67 (28 July 2009; Roma, ITA), 1:52.98 (29 July 2009; Roma, ITA); 400 m freestyle – 24 March 2008 - 16 March 2009 and 27 June 2009 - present: 4:01.53 (24 March 2008; Eindhoven, NED), 4:00.41 (27 June 2009; Pescara, ITA), 3:59.15 (26 July 2009; Roma, ITA); 4×200 m freestyle relay – 14 August 2008 - 30 July 2009: 7:49.76 (14 August 2008; Beijing, CHN)
Matteo Pelliciari	ITA	SWM	2000—2004	4×200 m freestyle relay – 27 July 2001 - 5 August 2006: 7:10.86 (27 July 2001; Fukuoka, JPN)
Mette Ove Petersen	DEN	SWM	1952	4×100 m freestyle relay – 8 February 1938 - 27 April 1952: 4:29.7 (8 February 1938; København, DEN), 4:27.6 (7 August 1938; København, DEN)
Konstantin Petrov	KAZ URS	SWM	1988	4×100 m medley relay – 23 August 1987 - 16 March 1988: 3:41.51 (23 August 1987; Strasbourg, FRA)
Nina Petrova	RUS URS	SWM	1972	200 m medley – 18 April 1972 - 28 August 1972: 2:26.9 (18 April 1972; Hannover, FRG)
Marek Petrusewicz	POL	SWM	1952	100 m breaststroke – 18 October 1953 - 23 May 1954 - 22 November 1955: 1:10.9 (18 October 1953; Wrocław, POL), 1:09.8 (23 May 1954; Wrocław, POL)
Frank Pfütze	GDR	SWM	1976—1980	400 m freestyle – 27 July 1975 - 12 March 1976 and 2 June 1976: 4:01.10 (27 July 1975; Cali, COL), 3:58.59 (2 June 1976; Ost-Berlin, GDR); 1500 m freestyle – 25 August 1974 - 13 March 1976: 15:54.57 (25 August 1974; Wien, AUT)
Zus Philipsen-Braun	NED	SWM	1928—1932	100 m freestyle – 28 November 1928 - 7 January 1931: 1:13.2 (28 November 1928; The Hague, NED), 1:11.8 (29 October 1929; The Hague, NED); 200 m freestyle – 2 March 1930 - 3 May 1933: 2:42.8 (2 March 1930; Paris, FRA), 2:40.8 (21 September 1931; Amsterdam, NED); 400 m freestyle – 2 September 1927 - 12 July 1934: 6:11.8 (2 September 1927; Bologna, ITA), 5:53.6 (4 August 1928; Amsterdam, NED), 5:46.0 (19 February 1930; The Hague, NED), 5:42.0 (30 August 1931; Paris, FRA); 100 m backstroke – 11 August 1928 - 30 May 1932: 1:21.6 (11 August 1928; Amsterdam, NED), 1:21.4 (20 April 1929; Bruxelles, BEL), 1:21.0 (27 November 1929; The Hague, NED); 200 m backstroke – 24 November 1928 - 19 September 1932: 2:59.2 (24 November 1928; Bruxelles, BEL)
Rosy Piacentini	FRA	SWM	1960	200 m backstroke – 2 August 1961 - 15 August 1962: 2:35.6 (2 August 1961; Paris, FRA), 2:34.5 (4 September 1961; Monte Carlo, MON), 2:33.9 (13 September 1961; Monte Carlo, MON)
Janine Pietsch	GER	SWM	2004	50 m backstroke – 25 May 2005 - 22 March 2008: 28.19 (25 May 2005; Berlin, GER)
Denis Pimankov	RUS	SWM	1996—2004	4×100 m freestyle relay – 22 August 1997 - 26 July 1999 and 20 July 2003 - 25 March 2007: 3:16.85 (22 August 1997; Sevilla, ESP), 3:14.06 (20 July 2003; Barcelona, ESP)
René Pirolley	FRA	SWM	1948—1956	200 m backstroke – 1 July 1949 - 28 July 1949: 2:24.2 (1 July 1949; Marseille, FRA)
Werner Plath	GER	SWM	1936	4×100 m freestyle relay – 1 April 1938 - 14 July 1938 and 25 March 1939 - 15 December 1946: 4:02.4 (1 April 1938; København, DEN), 4:00.5 (25 March 1939; Bremen, GER)
Catherine Plewinski	FRA	SWM	1988—1992	50 m butterfly – 23 September 1988 - 20 June 1993: 27.57 (23 September 1988; Seoul, KOR), 27.54 (23 September 1988; Seoul, KOR); 100 m butterfly – 23 September 1988: 59.34 (23 September 1988; Seoul, KOR)
Sarah Poewe	GER RSA	SWM	2000—2012	100 m breaststroke – 19 April 2008 - 24 April 2009: 1:07.10 (19 April 2008; Berlin, GER); 4×100 m medley relay – 1 August 2009 - 24 August 2014: 3:55.79 (1 August 2009; Roma, ITA)
Mikhail Polishchuk	RUS	SWM	2008—2012	4×200 m freestyle relay – 31 July 2009 - present: 6:59.15 (31 July 2009; Roma, ITA)
Cornelia Polit	GDR	SWM	1980	200 m butterfly – 27 August 1983 - 19 September 2000: 2:07.82 (27 August 1983; Roma, ITA)
Andrea Pollack	GDR	SWM	1976—1980	100 m butterfly – 3 July 1978 - 23 August 1984: 59.46 (3 July 1978; Ost-Berlin, GDR); 200 m butterfly – 9 April 1978 - 1 July 1981: 2:11.20 (9 April 1978; Leningrad, URS), 2:09.87 (4 July 1978; Ost-Berlin, GDR); 4×100 m freestyle relay – 4 April 1968 - 13 July 1968, 26 October 1968 - 24 June 1969, and 2 June 1976 - 27 July 1980: 4:09.4 (4 April 1968; Tallinn, URS), 4:05.7 (26 October 1968; Ciudad de México, MEX), 3:48.80 (2 June 1976; Ost-Berlin, GDR), 3:45.50 (25 July 1976; Montréal, CAN); 4×100 m medley relay – 5 June 1976 - 7 August 1982: 4:13.41 (5 June 1976; Ost-Berlin, GDR), 4:07.95 (18 July 1976; Montréal, CAN), 4:06.67 (20 July 1980; Moskva, URS)
Igor Polyansky	RUS URS	SWM	1988	50 m backstroke – 24 February 1988 - 18 March 1994: 25.90 (24 February 1988; Moskva, URS); 100 m backstroke – 10 August 1985 - 22 November 1991: 55.24 (10 August 1985; Sofia, BUL), 55.17 (15 March 1988; Tallinn, URS), 55.16 (16 March 1988; Tallinn, URS), 55.00 (16 July 1988; Moskva, URS); 200 m backstroke – 3 March 1985 - 13 August 1991: 1:58.14 (3 March 1985; Erfurt, GER); 4×100 m medley relay – 23 August 1987 - 31 July 1992: 3:41.51 (23 August 1987; Strasbourg, FRA), 3:40.66 (16 March 1988; Tallinn, URS), 3:39.96 (25 September 1988; Seoul, KOR)
Jean Pommat	FRA	SWM	1960—1964	4×200 m freestyle relay – 21 August 1962 - 22 August 1962: 8:25.8 (21 August 1962; Leipzig, GDR)
Alena Popchanka	BLR FRA	SWM	1996—2008	4×200 m freestyle relay – 13 August 2008 - 14 August 2008: 7:50.37 (13 August 2008; Beijing, CHN)
Aleksandr Popov	RUS EUN	IOC/SWM	1992—2018	50 m freestyle – 30 May 1992 - 23 March 2008: 22.31 (30 May 1992; Canet Roussillon, FRA), 22.21 (30 July 1992; Barcelona, ESP), 21.91 (30 July 1992; Barcelona, ESP), 21.64 (16 June 2000; Moskva, RUS); 100 m freestyle – 22 August 1991 - 19 September 2000: 49.18 tied (22 August 1991; Athina, GRE), 49.02 (28 July 1992; Barcelona, ESP), 48.93 (31 May 1993; Canet Roussillon, FRA), 48.21 (18 June 1994; Monte Carlo, MON); 4×100 m freestyle relay – 23 July 1996 - 26 July 1999 and 20 July 2003 - 25 March 2007: 3:17.06 (23 July 1996; Atlanta, USA), 3:16.85 (22 August 1997; Sevilla, ESP), 3:14.06 (20 July 2003; Barcelona, ESP); 4×100 m medley relay – 31 July 1992 - 23 September 2000 and 27 July 2003 - 24 March 2008: 3:38.56 (31 July 1992; Barcelona, ESP), 3:38.28 (11 September 1994; Roma, ITA), 3:38.11 (27 August 1995; Wien, AUT), 3:37.48 (27 April 1996; Moskva, RUS), 3:34.72 (27 July 2003; Barcelona, ESP)
Aleksandr Portnov	BLR URS	DIV	1980—1988	4×100 m freestyle relay – 23 August 1991 - 23 July 1996: 3:17.11 (23 August 1991; Athina, GRE)
Udo Poser	GDR	SWM	1968—1972	4×100 m freestyle relay – 31 August 1965 - 22 March 1966 and 26 August 1966 - 21 September 1967: 3:38.1 (31 August 1965; Leipzig, GDR), 3:36.8 (26 August 1966; Utrecht, NED); 4×100 m medley relay – 8 September 1970 - 4 September 1971: 3:54.4 (8 September 1970; Barcelona, ESP)
Sieta Posthumus	NED	SWM	1960	4×100 m freestyle relay – 27 June 1959 - 24 August 1962: 4:22.9 tied (27 June 1959; Saarbrücken, FRG), 4:18.2 (11 June 1960; Leipzig, GDR)
Camelia Potec	ROU	SWM	2000—2012	1500 m freestyle – 26 April 2009 - 28 July 2009: 15:52.37 (26 April 2009; Montpellier, FRA)
Vladimir Predkin	RUS	SWM	1996	4×100 m freestyle relay – 23 July 1996 - 22 August 1997: 3:17.06 (23 July 1996; Atlanta, USA)
Petra Priemer	GDR	SWM	1976	4×100 m freestyle relay – 25 July 1976 - 27 July 1980: 3:45.50 (25 July 1976; Montréal, CAN)
Gennady Prigoda	RUS URS EUN	SWM	1988—1992	4×100 m freestyle relay – 23 September 1988 - 23 July 1996: 3:18.33 (23 September 1988; Seoul, KOR), 3:17.11 (23 August 1991; Athina, GRE); 4×100 m medley relay – 23 August 1987 - 31 July 1992: 3:41.51 (23 August 1987; Strasbourg, FRA), 3:40.66 (16 March 1988; Tallinn, URS), 3:39.96 (25 September 1988; Seoul, KOR)
Yury Prilukov	RUS	SWM	2004—2008	800 m freestyle – 7 June 2003 - 28 July 2009: 7:49.72 (7 June 2003; Moskva, RUS), 7:46.64 (27 July 2005; Montréal, CAN); 1500 m freestyle – 17 August 2008 - 20 August 2014: 14:43.21 (17 August 2008; Beijing, CHN)
Georgy Prokopenko	URS UKR	SWM	1960—1964	100 m breaststroke – 7 July 1962 - 13 August 1963, 20 October 1963 - 1 March 1964, and 26 March 1964 - 8 November 1967: 1:09.8 (7 July 1962; Rostock, GDR), 1:09.2 (20 October 1963; Bucharest, ROU), 1:07.4 (26 March 1964; Baku, AZE), 1:06.9 (3 September 1964; Moskva, URS); 200 m breaststroke – 13 April 1962 - 6 August 1962 and 28 March 1964 - 3 April 1968: 2:35.4 (13 April 1962; Moskva, URS), 2:34.0 (13 April 1962; Moskva, URS), 2:30.2 (28 March 1964; Baku, AZE), 2:29.6 (18 May 1964; Ost-Berlin, GDR), 2:28.2 (15 October 1964; Tokyo, JPN); 4×100 m medley relay – 17 May 1964 - 7 November 1967: 4:02.8 (17 May 1964; Ost-Berlin, GDR), 4:00.7 (23 March 1966; Moskva, URS)
Galina Prozumenshchikova-Stepanova	URS UKR	SWM	1964—1972	100 m breaststroke – 17 July 1966 - 18 August 1973: 1:15.7 (17 July 1966; Moskva, URS), 1:15.4 (3 April 1968; Tallinn, URS), 1:14.7 (18 April 1971; Halle, GDR); 200 m breaststroke – 11 April 1964 - 16 July 1966 and 23 August 1966 - 13 July 1973: 2:47.7 (11 April 1964; Blackpool, GBR), 2:45.4 (17 May 1964; Ost-Berlin, GDR), 2:45.3 (12 September 1965; Groningen, NED), 2:44.6 (23 March 1966; Moskva, URS), 2:40.8 (23 August 1966; Utrecht, NED), 2:40.7 (11 September 1970; Barcelona, ESP); 4×100 m medley relay – 20 September 1967 - 20 April 1968: 4:35.7 (20 September 1967; Tbilisi, URS)
Paolo Pucci	ITA	SWM/WPO	1956	100 m freestyle – 31 August 1955 - 31 July 1960: 56.1 (31 August 1955; Budapest, HUN)
Vlad Pyshnenko	RUS EUN	SWM	1992—1996	4×100 m freestyle relay – 23 July 1996 - 26 July 1999: 3:17.06 (23 July 1996; Atlanta, USA), 3:16.85 (22 August 1997; Sevilla, ESP); 4×200 m freestyle relay – 27 July 1992 - 27 July 2001: 7:11.95 (27 July 1992; Barcelona, ESP)
Roger Pyttel	GDR	SWM	1972—1980	200 m freestyle – 4 September 1973 - 19 August 1974: 1:53.97 (4 September 1973; Beograd, YUG); 100 m butterfly – 31 August 1975 - 3 September 1979: 55.58 (31 August 1975; Concord, USA), 55.22 (5 June 1976; Ost-Berlin, GDR), 54.75 (20 July 1976; Montréal, CAN), 54.61 (11 August 1979; London, GBR); 200 m butterfly – 15 March 1975 - 12 August 1979: 2:01.82 (15 March 1975; Dresden, GDR), 2:01.70 (13 March 1976; Tallinn, URS), 2:00.21 (3 June 1976; Ost-Berlin, GDR), 1:59.63 (3 June 1976; Ost-Berlin, GDR)
Erich Rademacher	GER	SWM/WPO	1928—1932	100 m breaststroke – 22 March 1924 - 5 December 1926: 1:15.9 (22 March 1924; München, GER), 1:15.9 tied (5 April 1925; Leipzig, GER); 200 m breaststroke – 11 March 1927 - 1 February 1931 and 12 November 1922 - 11 March 1927: 2:48.0 (11 March 1927; Bruxelles, BEL), 2:54.4 (12 November 1922; Amsterdam, NED), 2:50.4 (7 April 1924; Magdeburg, GER)
Vladimir Raskatov	URS UKR	SWM	1976	400 m freestyle – 12 March 1976 - 18 August 1977: 3:59.60 (12 March 1976; Tallinn, URS), 3:58.02 (2 June 1976; Kyiv, URS), 3:57.56 (22 July 1976; Montréal, CAN), 3:55.76 (22 July 1976; Montréal, CAN); 4×200 m freestyle relay – 21 July 1976 - 8 March 1980: 7:33.21 (21 July 1976; Montréal, CAN), 7:27.97 (21 July 1976; Montréal, CAN)
Toivo Reingoldt	FIN	SWM	1932	200 m breaststroke – 1 February 1931 - 1 September 1931: 2:47.9 (1 February 1931; Helsinki, FIN)
Rica Reinisch	GDR	SWM	1980	100 m backstroke – 20 July 1980 - 24 August 1984: 1:01.51 tied (20 July 1980; Moskva, URS), 1:01.50 (22 July 1980; Moskva, URS), 1:00.86 (23 July 1980; Moskva, URS); 200 m backstroke – 27 July 1980 - 7 August 1982: 2:11.77 (27 July 1980; Moskva, URS); 4×100 m medley relay – 20 July 1980 - 7 August 1982: 4:06.67 (20 July 1980; Moskva, URS)
Dirk Richter	GDR GER	SWM	1988—1992	50 m backstroke – 22 December 1982 - 24 February 1988: 26.44 (22 December 1982; Ost-Berlin, GDR); 100 m backstroke – 21 March 1982 - 10 August 1985: 56.21 (21 March 1982; Hamburg, FRG), 56.19 (6 August 1982; Guayaquil, ECU), 55.95 (6 August 1982; Guayaquil, ECU), 55.94 (18 February 1984; Moskva, URS), 55.45 (26 May 1984; Magdeburg, GDR), 55.35 (27 May 1984; Magdeburg, GDR); 200 m backstroke – 24 May 1984 - 21 August 1984: 1:59.80 (24 May 1984; Magdeburg, GDR); 4×100 m freestyle relay – 21 August 1987 - 23 September 1988: 3:19.17 (21 August 1987; Strasbourg, FRA)
Ulrike Richter	GDR	SWM	1976	100 m backstroke – 18 August 1973 - 22 July 1980: 1:05.39 (18 August 1973; Utrecht, NED), 1:04.99 (5 September 1973; Beograd, YUG), 1:04.43 (8 July 1974; Rostock, GDR), 1:04.09 (22 August 1974; Wien, AUT), 1:03.30 (23 August 1974; Wien, AUT), 1:03.08 (24 August 1974; Wien, AUT), 1:02.98 (1 September 1974; Concord, USA), 1:02.60 (14 March 1976; Tallinn, URS), 1:01.51 (5 June 1976; Ost-Berlin, GDR); 200 m backstroke – 7 July 1974 - 6 June 1975: 2:18.41 (7 July 1974; Rostock, GDR), 2:17.35 (25 August 1974; Wien, AUT); 4×100 m medley relay – 4 September 1973 - 5 June 1976 and 18 July 1976 - 20 July 1980: 4:21.70 (4 September 1973; Beograd, YUG), 4:16.84 (4 September 1973; Beograd, YUG), 4:13.78 (24 August 1974; Wien, AUT), 4:07.95 (18 July 1976; Montréal, CAN)
Flavia Rigamonti	SUI	SWM	2000—2008	1500 m freestyle – 27 March 2007 - 16 July 2008: 15:55.38 (27 March 2007; Melbourne, AUS)
Anke Rijnders	NED	SWM	1972	200 m freestyle – 18 April 1972 - 1 September 1972: 2:07.2 (18 April 1972; Hannover, FRG); 400 m freestyle – 2 July 1972 - 5 July 1972: 4:29.7 (2 July 1972; Leusden, NED); 4×100 m medley relay – 18 April 1972 - 3 September 1972: 4:30.0 (18 April 1972; Hannover, FRG)
Michael Rock	GBR	SWM	2008—2012	4×100 m medley relay – 15 August 2008 - 15 August 2008: 3:33.83 (15 August 2008; Beijing, CHN)
Angelo Romani	ITA	SWM	1952—1960	400 m freestyle – 27 March 1956 - 17 August 1956: 4:30.0 (27 March 1956; New Haven, USA)
Manon van Rooijen	NED	SWM	2000—2008	4×100 m freestyle relay – 16 September 2000 - 23 July 2001: 3:39.83 (16 September 2000; Sydney, AUS)
Dino Rora	ITA	SWM	1964	100 m backstroke – 30 August 1963 - 22 September 1963: 1:01.9 (30 August 1963; Split, YUG)
Hans Rosendahl	SWE	SWM	1964	4×200 m freestyle relay – 22 August 1962 - 17 August 1963 and 6 September 1964: 8:18.4 (22 August 1962; Leipzig, GDR), 8:14.3 (6 September 1964; Stockholm, SWE)
Massi Rosolino	ITA	SWM	1996—2008	400 m freestyle – 16 September 2000 - 26 July 2009: 3:43.40 (16 September 2000; Sydney, AUS); 4×100 m freestyle relay – 25 March 2007 - 19 June 2008: 3:14.04 (25 March 2007; Melbourne, AUS); 4×200 m freestyle relay – 27 July 2001 - 13 August 2008: 7:10.86 (27 July 2001; Fukuoka, JPN), 7:09.60 (5 August 2006; Budapest, HUN), 7:07.84 (12 August 2008; Beijing, CHN)
Michel Rousseau	FRA	SWM	1968—1976	100 m freestyle – 5 September 1970 - 14 August 1972: 52.8 (5 September 1970; Barcelona, ESP), 52.7 (31 July 1971; Paris, FRA), 52.6 (15 July 1972; Vittel, FRA); 4×200 m freestyle relay – 15 July 1967 - 18 April 1969: 7:58.6 (15 July 1967; Paris, FRA)
Norbert Rózsa	HUN	SWM	1992—2000	100 m breaststroke – 7 January 1991 - 3 August 1993: 1:01.49 tied (7 January 1991; Perth, FRA), 1:01.45 (7 January 1991; Perth, FRA), 1:01.29 (20 August 1991; Athina, GRE); 200 m breaststroke – 11 January 1991 - 23 May 1992 and 29 July 1992 - 20 September 2000: 2:12.03 (11 January 1991; Perth, FRA), 2:11.23 (29 July 1992; Barcelona, ESP)
Yekaterina Rudenko	KAZ	SWM	2008—2016	4×100 m freestyle relay – 14 March 1975 - 12 March 1976: 3:28.89 (14 March 1975; Dresden, GDR); 4×100 m medley relay – 20 September 1967 - 20 April 1968: 4:35.7 (20 September 1967; Tbilisi, URS)
Nils Rudolph	GER	SWM	1992	50 m freestyle – 24 August 1991 - 30 May 1992: 22.33 (24 August 1991; Athina, GRE); 50 m butterfly – 8 November 1990 - 28 June 1992: 24.39 (8 November 1990; München, GER)
Thomas Rupprath	GER	SWM	2000—2008	50 m backstroke – 24 July 2001 - 25 May 2002 and 31 July 2002 - 2 April 2008: 25.31 (24 July 2001; Fukuoka, JPN), 25.20 (31 July 2002; Berlin, GER), 25.00 (31 July 2002; Berlin, GER), 24.80 (27 July 2003; Barcelona, ESP); 100 m butterfly – 24 May 2002 - 25 July 2003: 51.88 (24 May 2002; Warendorf, GER); 4×100 m medley relay – 23 September 2000 - 27 July 2003: 3:35.88 (23 September 2000; Sydney, AUS)
Sergey Rusin	RUS URS	SWM	1980	400 m freestyle – 18 August 1977 - 23 August 1978: 3:54.83 (18 August 1977; Jonköping, SWE), 3:54.47 (7 July 1978; Moskva, URS)
Yevgeny Rylov	ROC RUS	SWM	2014—2020	200 m backstroke – 21 April 2016 - present: 1:54.21 (21 April 2016; Kazan, RUS), 1:53.97 (11 August 2016; Rio de Janeiro, BRA), 1:53.81 (13 April 2017; Moskva, RUS), 1:53.61 (28 July 2017; Budapest, HUN), 1:53.36 (8 August 2018; Glasgow, GBR), 1:53.23 (8 April 2021; Kazan, RUS)
Mara Sacchi	ITA	SWM	1964—1968	4×100 m freestyle relay – 17 September 1967 - 4 April 1968: 4:11.3 tied (17 September 1967; San Remo, ITA)
Aleksandr Sadovnikov	RUS	SWM	2014—2016	4×100 m medley mixed relay – 12 July 2014 - 19 August 2014: 3:49.05 (12 July 2014; Dordrecht, NED)
Yevgeny Sadovy	RUS EUN	SWM	1992	400 m freestyle – 29 July 1992 - 16 September 2000: 3:45.00 (29 July 1992; Barcelona, ESP); 4×200 m freestyle relay – 27 July 1992 - 27 July 2001: 7:11.95 (27 July 1992; Barcelona, ESP)
Vladimir Salnikov	RUS URS	SWM	1976—1988	400 m freestyle – 23 August 1978 - 27 June 1985: 3:53.32 (23 August 1978; West Berlin, FRG), 3:51.94 (23 August 1978; West Berlin, FRG), 3:51.41 (6 April 1979; Potsdam, GDR), 3:51.40 (19 August 1979; Moskva, URS), 3:51.20 (24 February 1980; Leningrad, URS), 3:49.57 (12 March 1982; Moskva, URS), 3:49.57 tied (14 July 1982; Kyiv, URS), 3:48.32 (19 February 1983; Moskva, URS); 800 m freestyle – 20 July 1976 - 5 July 1977 and 20 August 1977 - 7 June 2003: 8:13.35 (20 July 1976; Montréal, CAN), 8:07.61 (20 August 1977; Jonköping, SWE), 8:06.47 (4 September 1977; Leningrad, URS), 7:56.49 (23 March 1979; Minsk, URS), 7:52.83 (14 February 1982; Moskva, URS), 7:52.33 (14 July 1983; Los Angeles, USA), 7:50.64 (4 July 1986; Moskva, RUS); 1500 m freestyle – 20 July 1976 - 13 January 1991: 15:29.45 (20 July 1976; Montréal, CAN), 15:27.04 (27 March 1977; Leningrad, URS), 15:16.45 (20 August 1977; Jonköping, SWE), 15:03.99 (26 August 1978; West Berlin, FRG), 14:58.27 (22 July 1980; Moskva, URS), 14:56.35 (13 March 1982; Moskva, URS), 14:54.76 (22 February 1983; Moskva, URS); 4×200 m freestyle relay – 23 July 1980 - 23 August 1983: 7:23.50 (23 July 1980; Moskva, URS)
Aleksandr Samsonov	RUS URS	SWM	1972	4×200 m freestyle relay – 15 March 1975 - 25 July 1975: 7:39.52 (15 March 1975; Dresden, GDR)
Daniela Samulski	GER	SWM	2000—2008	50 m backstroke – 25 June 2009 - 29 July 2009 and 30 July 2009 - 4 August 2018: 27.85 (25 June 2009; Berlin, GER), 27.61 (26 June 2009; Berlin, GER), 27.39 (29 July 2009; Roma, ITA), 27.23 (30 July 2009; Roma, ITA); 4×200 m freestyle relay – 3 August 2006 - 13 August 2008: 7:50.82 (3 August 2006; Budapest, HUN); 4×100 m medley relay – 1 August 2009 - 24 August 2014: 3:55.79 (1 August 2009; Roma, ITA)
Tatyana Savelyeva	RUS URS	SWM	1964—1968	4×100 m medley relay – 16 October 1964 - 18 October 1964: 4:39.1 tied (16 October 1964; Tokyo, JPN)
Mateusz Sawrymowicz	POL	SWM	2008—2016	1500 m freestyle – 1 April 2007 - 17 August 2008: 14:45.94 (1 April 2007; Melbourne, AUS)
Otto Scheff	AUT	SWM/WPO	1906—1912	200 m freestyle – 11 November 1908 - 12 December 1924: 2:31.6 (11 November 1908; Wien, AUT)
Oskar Schiele	GER	SWM	1906—1912	100 m backstroke – 6 April 1912 - 29 April 1912: 1:18.4 (6 April 1912; Bruxelles, BEL); 200 m backstroke – 27 June 1909 - 3 January 1910: 3:04.4 (27 June 1909; Charlottenburg, GER)
Olaf von Schilling	FRG	SWM	1968—1972	4×200 m freestyle relay – 12 September 1970 - 29 August 1972: 7:49.5 (12 September 1970; Barcelona, ESP)
Corrie Schimmel	NED	SWM	1960	200 m freestyle – 27 June 1959 - 12 June 1960: 2:22.1 (27 June 1959; Saarbrücken, FRG); 400 m freestyle – 16 November 1956 - 1 May 1957 and 27 June 1959 - 3 May 1961: 4:58.0 (16 November 1956; Naarden, NED), 4:58.05 (27 June 1959; Saarbrücken, FRG), 4:58.1 (15 July 1959; Utrecht, NED), 4:57.7 (26 July 1959; Waalwijk, NED), 4:52.4 (8 August 1959; Appescha, NED); 800 m freestyle – 15 July 1959 - 17 August 1960: 10:25.3 (15 July 1959; Utrecht, NED), 10:22.3 (1 August 1959; Ermelo, NED), 10:18.9 (27 July 1960; Ermelo, NED); 1500 m freestyle – 15 July 1959 - 8 September 1960: 19:46.4 (15 July 1959; Utrecht, NED); 4×100 m freestyle relay – 6 September 1958 - 11 June 1960: 4:22.9 (6 September 1958; Budapest, HUN)
Heinz Schlauch	GER	SWM	1936	100 m backstroke – 31 October 1937 - 24 June 1945: 1:07.9 (31 October 1937; Berlin, GER), 1:06.8 (6 February 1938; Duisburg, GER); 200 m backstroke – 29 September 1936 - 14 September 1939: 2:32.7 (29 September 1936; Graz, AUT), 2:29.8 (8 February 1938; København, DEN)
Andreas Schmidt	FRG	SWM	1976—1984	4×100 m freestyle relay – 16 August 1977 - 1 September 1979 and 29 July 1981 - 21 August 1981: 3:26.57 (16 August 1977; Jonköping, SWE), 3:23.87 (29 July 1981; Heidelberg, FRG); 4×200 m freestyle relay – 23 August 1983 - 30 July 1984: 7:20.40 (23 August 1983; Roma, ITA)
Carmela Schmidt	GDR	SWM	1980	4×100 m freestyle relay – 27 July 1980 - 27 July 1980: 3:45.19 (27 July 1980; Moskva, URS)
Ingrid Schmidt	GDR GER	SWM	1960—1964	200 m backstroke – 15 August 1962 - 13 July 1963: 2:33.8 (15 August 1962; Ost-Berlin, GDR); 4×100 m medley relay – 15 July 1960 - 6 August 1961 and 23 August 1962 - 28 June 1964: 4:46.7 (15 July 1960; Leipzig, GDR), 4:40.1 (23 August 1962; Leipzig, GDR)
Uta Schmuck	GDR	SWM	1968	4×100 m freestyle relay – 4 April 1968 - 13 July 1968 and 26 October 1968 - 24 June 1969: 4:09.4 (4 April 1968; Tallinn, URS), 4:05.7 (26 October 1968; Ciudad de México, MEX)
Petra Schneider	GDR	SWM	1980	200 m medley – 18 March 1979 - 4 July 1981: 2:15.75 (18 March 1979; Hamburg, FRG), 2:14.51 (5 August 1979; Brandenburg, GDR), 2:13.94 (27 February 1980; Ost-Berlin, GDR), 2:13.00 (24 May 1980; Magdeburg, GDR); 400 m medley – 8 March 1980 - 16 September 2000: 4:39.96 (8 March 1980; Leningrad, URS), 4:38.44 (27 May 1980; Magdeburg, GDR), 4:36.29 (26 July 1980; Moskva, URS), 4:36.10 (1 August 1982; Guayaquil, ECU)
Franck Schott	FRA	SWM	1988—1996	50 m backstroke – 18 March 1994 - 29 July 1999: 25.71 (18 March 1994; Lille, FRA)
Alexander Schowtka	FRG	SWM	1984	4×200 m freestyle relay – 23 August 1983 - 19 August 1987: 7:20.40 (23 August 1983; Roma, ITA), 7:15.73 (30 July 1984; Los Angeles, USA)
Brigitte Schuchardt	GDR	SWM	1972	4×100 m medley relay – 9 September 1970 - 18 April 1972: 4:30.1 (9 September 1970; Barcelona, ESP)
Sabina Schulze	GDR	SWM	1988	4×100 m freestyle relay – 19 August 1986 - 16 September 2000: 3:40.57 (19 August 1986; Madrid, ESP)
Albert Schumburg	GER	SWM	1928	200 m backstroke – 17 May 1927 - 2 December 1928: 2:46.6 (17 May 1927; Magdeburg, GER)
Heiko Schwartz	GER	SWM/WPO	1932—1936	100 m backstroke – 28 November 1936 - 31 October 1937: 1:08.7 (28 November 1936; Bremen, GER); 200 m backstroke – 23 October 1935 - 25 October 1935: 2:37.0 (23 October 1935; Stockholm, SWE)
Ben Schwietert	NED	SWM	2016	4×100 m freestyle mixed relay – 29 July 2017 - present: 3:21.81 (29 July 2017; Budapest, HUN)
Duncan Scott	GBR	SWM	2014—2020	4×100 m medley relay – 28 July 2019 - present: 3:28.10 (28 July 2019; Gwangju, KOR)
Mirjana Šegrt	CRO YUG	SWM	1968	200 m freestyle – 18 August 1968 - 24 August 1969: 2:10.2 (18 August 1968; Bratislava, TCH)
Elke Sehmisch	GDR	SWM	1972	400 m freestyle – 8 September 1970 - 20 July 1971: 4:32.9 (8 September 1970; Barcelona, ESP); 4×100 m freestyle relay – 11 September 1970 - 8 September 1973: 4:00.8 (11 September 1970; Barcelona, ESP), 3:58.11 (30 August 1972; München, FRG), 3:55.55 (30 August 1972; München, FRG)
Jopie Selbach	NED	SWM	1936	4×100 m freestyle relay – 12 November 1933 - 8 February 1938: 4:43.0 (12 November 1933; Amsterdam, NED), 4:41.2 (28 March 1934; Rotterdam, NED), 4:33.3 (14 April 1934; Rotterdam, NED), 4:32.8 (24 May 1936; Rotterdam, NED)
Vladimir Selkov	RUS EUN	SWM	1992—1996	4×100 m medley relay – 31 July 1992 - 23 September 2000: 3:38.56 (31 July 1992; Barcelona, ESP), 3:38.28 (11 September 1994; Roma, ITA), 3:38.11 (27 August 1995; Wien, AUT), 3:37.48 (27 April 1996; Moskva, RUS)
Viktor Semchenkov	RUS URS	SWM	1964	4×100 m medley relay – 17 May 1964 - 23 March 1966: 4:02.8 (17 May 1964; Ost-Berlin, GDR)
Nida Senff	NED	SWM	1936	100 m backstroke – 8 September 1936 - 1 November 1938: 1:15.7 (8 September 1936; København, DEN), 1:15.4 (10 September 1936; København, DEN), 1:13.6 (25 October 1936; Düsseldorf, GER); 200 m backstroke – 2 February 1937 - 14 February 1937: 2:44.6 (2 February 1937; Amsterdam, NED)
Andriy Serdinov	UKR	SWM	2000—2008	100 m butterfly – 25 July 2003 - 14 August 2008: 51.76 (25 July 2003; Barcelona, ESP), 51.59 (26 July 2003; Barcelona, ESP), 51.36 (20 August 2004; Athina, GRE)
Yevgeny Seredin	RUS URS	SWM	1976—1980	4×100 m medley relay – 8 April 1979 - 23 August 1981: 3:46.20 (8 April 1979; Potsdam, GDR), 3:45.99 (20 August 1979; Moskva, URS), 3:45.92 (24 July 1980; Moskva, URS)
Vladimir Shemetov	RUS URS	SWM	1980	200 m backstroke – 18 February 1983 - 4 July 1983: 2:00.65 (18 February 1983; Moskva, URS); 4×100 m medley relay – 7 August 1982 - 23 August 1987: 3:42.86 (7 August 1982; Guayaquil, ECU), 3:42.15 (25 August 1984; Moskva, URS)
Vladimir Shuvalov	RUS URS	SWM	1964	4×100 m freestyle relay – 22 March 1966 - 26 August 1966: 3:37.0 (22 March 1966; Moskva, URS)
Aleksandr Sidorenko	URS UKR	SWM	1980	200 m medley – 9 July 1978 - 27 August 1983: 2:05.24 (9 July 1978; Moskva, URS), 2:03.46 (28 July 1979; Moskva, URS), 2:03.46 tied (4 February 1980; Leningrad, URS), 2:03.41 (11 September 1981; Split, YUG), 2:02.85 (13 February 1982; Moskva, URS); 400 m medley – 22 February 1980 - 23 August 1983: 4:21.97 (22 February 1980; Leningrad, URS)
Erwin Sietas	GER	SWM	1928—1936	200 m breaststroke – 16 March 1935 - 4 May 1935: 2:42.4 (16 March 1935; Düsseldorf, GER)
Jani Sievinen	FIN	SWM	1992—2004	200 m medley – 11 September 1994 - 28 July 2005: 1:58.16 (11 September 1994; Roma, ITA)
Veiko Siimar	EST URS	SWM	1960	4×100 m medley relay – 6 August 1960 - 11 September 1961 and 24 April 1962 - 21 August 1962: 4:14.0 (6 August 1960; Moskva, URS), 4:11.1 (24 April 1962; Moskva, URS)
Coby Sikkens	NED	SWM	1968	4×100 m medley relay – 25 August 1966 - 20 September 1967: 4:36.4 (25 August 1966; Utrecht, NED)
Lizzie Simmonds	GBR	SWM	2008—2012	4×100 m medley relay – 24 March 2008 - 15 August 2008: 3:59.33 (24 March 2008; Eindhoven, NED)
Erwin Simon	GER	SWM	1936	200 m backstroke – 25 January 1934 - 23 October 1935: 2:38.3 (25 January 1934; Düsseldorf, GER)
Márton Sipos	HUN	SWM	1924	100 m breaststroke – 24 September 1922 - 5 April 1925: 1:16.2 (24 September 1922; Budapest, HUN)
Cornelia Sirch	GDR	SWM	1988	200 m backstroke – 7 August 1982 - 25 September 1988: 2:09.91 (7 August 1982; Guayaquil, ECU), 2:09.91 tied (24 July 1988; Potsdam, GDR); 4×200 m freestyle relay – 22 August 1983 - 17 August 1986: 8:02.27 (22 August 1983; Roma, ITA)
Peter Sitt	GER FRG	SWM	1988—1992	4×200 m freestyle relay – 19 August 1987 - 27 July 1992: 7:13.10 (19 August 1987; Strasbourg, FRA)
Johanna Sjöberg	SWE	SWM	1996—2004	100 m butterfly – 2 July 1999 - 29 July 1999: 58.93 (2 July 1999; Halmstad, SWE)
Sarah Sjöström	SWE	SWM	2008—2020	50 m freestyle – 29 July 2017 - present: 23.67 (29 July 2017; Budapest, HUN); 100 m freestyle – 23 July 2017 - present: 51.71 (23 July 2017; Budapest, HUN); 50 m butterfly – 5 July 2014 - present: 24.43 (5 July 2014; Boras, SWE); 100 m butterfly – 26 July 2009 - present: 56.44 (26 July 2009; Roma, ITA), 56.06 (27 July 2009; Roma, ITA), 55.74 (2 August 2015; Kazan, RUS), 55.64 (3 August 2015; Kazan, RUS), 55.48 (7 August 2016; Rio de Janeiro, BRA); 4×100 m medley relay – 9 August 2015 - 3 August 2016: 3:55.24 (9 August 2015; Kazan, RUS)
Vladimir Skomarovsky	RUS URS	SWM	1952	4×100 m freestyle relay – 23 January 1954 - 9 March 1954: 3:50.4 (23 January 1954; Moskva, URS)
Pyotr Skripchenkov	RUS URS	SWM	1952	4×100 m medley relay – 13 May 1953 - 5 August 1954: 4:24.8 (13 May 1953; Moskva, URS), 4:21.3 (26 January 1954; Moskva, URS), 4:19.0 (24 February 1954; Stockholm, SWE)
Nikolay Skvortsov	RUS	SWM	2004—2012	200 m butterfly – 12 August 2008 - 13 August 2008: 1:54.31 (12 August 2008; Beijing, CHN); 4×100 m medley relay – 15 August 2008 - 17 August 2008: 3:33.59 (15 August 2008; Beijing, CHN)
Roman Sludnov	RUS	SWM	2000—2012	100 m breaststroke – 15 June 2000 - 19 March 2008: 1:00.36 (15 June 2000; Moskva, RUS), 1:00.26 (28 June 2001; Moskva, RUS), 59.97 (29 June 2001; Moskva, RUS), 59.94 (23 July 2001; Fukuoka, JPN); 4×100 m medley relay – 15 August 2008 - 2 August 2009: 3:33.59 (15 August 2008; Beijing, CHN), 3:31.92 (17 August 2008; Beijing, CHN)
Andrey Smirnov	RUS URS	SWM	1976	4×100 m freestyle relay – 14 March 1975 - 16 August 1977: 3:28.89 (14 March 1975; Dresden, GDR), 3:26.60 (12 March 1976; Tallinn, URS); 4×200 m freestyle relay – 21 July 1976 - 21 July 1976: 7:33.21 (21 July 1976; Montréal, CAN)
Sergey Smiryagin	RUS URS	SWM	1980	4×100 m freestyle relay – 21 August 1981 - 21 August 1987: 3:21.69 (21 August 1981; Kyiv, URS), 3:21.48 (8 September 1981; Split, YUG), 3:20.88 (25 August 1983; Roma, ITA), 3:20.19 (23 August 1984; Moskva, URS); 4×100 m medley relay – 7 August 1982 - 23 August 1987: 3:42.86 (7 August 1982; Guayaquil, ECU), 3:42.15 (25 August 1984; Moskva, URS)
Viktor Solovyov	RUS URS	SWM	1952	3×100 m medley relay – 13 May 1951 - 25 March 1952: 3:11.1 (13 May 1951; Moskva, URS); 4×100 m medley relay – 26 January 1954 - 5 August 1954: 4:21.3 (26 January 1954; Moskva, URS), 4:19.0 (24 February 1954; Stockholm, SWE)
Vitaly Sorokin	RUS URS	SWM	1956—1960	4×100 m freestyle relay – 3 November 1956 - 1 May 1957 and 23 July 1958 - 18 September 1960: 3:48.4 (3 November 1956; Moskva, URS), 3:47.4 (23 July 1958; Moskva, URS), 3:47.1 (16 August 1959; Moskva, URS); 4×200 m freestyle relay – 4 November 1956 - 29 August 1960: 8:24.5 (4 November 1956; Moskva, URS), 8:34.7 (3 December 1956; Melbourne, AUS), 8:34.5 (3 August 1957; Moskva, URS), 8:27.1 (14 September 1957; Leipzig, GDR)
Tamara Sosnova	RUS URS	SWM	1968	4×100 m freestyle relay – 27 August 1966 - 4 April 1968: 4:11.3 (27 August 1966; Utrecht, NED)
Renata Spagnolo	ITA	SWM	2008	4×200 m freestyle relay – 14 August 2008 - 30 July 2009: 7:49.76 (14 August 2008; Beijing, CHN)
Torsten Spanneberg	GER	SWM	2000—2004	4×100 m medley relay – 23 September 2000 - 27 July 2003: 3:35.88 (23 September 2000; Sydney, AUS)
Yevgeny Spiridonov	RUS URS	SWM	1968	4×100 m freestyle relay – 3 April 1968 - 17 October 1968: 3:35.6 tied (3 April 1968; Tallinn, URS)
Gemma Spofforth	GBR	SWM	2008—2012	100 m backstroke – 12 August 2008 - 27 July 2009 and 28 July 2009 - present: 59.38 (12 August 2008; Beijing, CHN), 59.05 (17 August 2008; Beijing, CHN), 58.78 (27 July 2009; Roma, ITA), 58.12 (28 July 2009; Roma, ITA); 4×100 m medley relay – 15 August 2008 - 1 August 2009: 3:59.14 (15 August 2008; Beijing, CHN), 3:57.50 (17 August 2008; Beijing, CHN)
Benjamin Starke	GER	SWM	2008—2012	4×100 m medley relay – 2 August 2009 - 28 July 2019: 3:29.48 (2 August 2009; Roma, ITA), 3:28.58 (2 August 2009; Roma, ITA)
Britta Steffen	GER	SWM	2000—2012	50 m freestyle – 17 August 2008 - 19 April 2009 and 2 August 2009 - 29 July 2017: 24.06 (17 August 2008; Beijing, CHN), 23.73 (2 August 2009; Roma, ITA); 100 m freestyle – 2 August 2006 - 23 July 2017: 53.30 (2 August 2006; Budapest, HUN), 53.20 (22 April 2008; Berlin, GER), 53.05 (19 July 2008; Magdeburg, GER), 52.85 (25 June 2009; Berlin, GER), 52.56 (27 June 2009; Berlin, GER), 52.22 (26 July 2009; Roma, ITA), 52.07 (31 July 2009; Roma, ITA); 4×100 m freestyle relay – 31 July 2006 - 18 March 2008: 3:35.22 (31 July 2006; Budapest, HUN); 4×200 m freestyle relay – 3 August 2006 - 13 August 2008: 7:50.82 (3 August 2006; Budapest, HUN); 4×100 m medley relay – 1 August 2009 - 24 August 2014: 3:55.79 (1 August 2009; Roma, ITA)
Boris Steimetz	FRA	SWM	2008	4×100 m freestyle relay – 10 August 2008 - 11 August 2008: 3:12.36 (10 August 2008; Beijing, CHN)
Klaus Steinbach	GER FRG	DOSB/SWM	1972—2006	100 m freestyle – 28 August 1978 - 26 May 1980: 50.79 (28 August 1978; West Berlin, FRG); 200 m freestyle – 10 March 1976 - 4 June 1976 and 19 July 1976: 1:52.95 (10 March 1976; Bonn, FRG), 1:51.41 (19 July 1976; Montréal, CAN); 4×100 m freestyle relay – 16 August 1977 - 1 September 1979: 3:26.57 (16 August 1977; Jonköping, SWE); 4×200 m freestyle relay – 29 August 1972 - 13 March 1976: 7:41.69 (29 August 1972; München, FRG), 7:39.70 (21 August 1974; Wien, AUT), 7:39.44 (25 July 1975; Cali, COL); 4×100 m medley relay – 25 August 1974 - 8 April 1979: 3:51.57 (25 August 1974; Wien, AUT), 3:47.29 (22 July 1976; Montréal, CAN)
Sabine Steinbach	GDR	SWM	1968	200 m medley – 4 March 1967 - 3 April 1968: 2:33.5 (4 March 1967; Karl Marx Stadt, GDR), 2:32.0 (15 August 1967; Linköping, SWE), 2:31.1 (8 November 1967; Leipzig, GDR), 2:30.3 (10 March 1968; Ost-Berlin, GDR); 400 m medley – 9 April 1967 - 6 September 1970: 5:22.6 (9 April 1967; Leipzig, GDR), 5:14.9 (2 April 1968; Tallinn, URS)
Manuela Stellmach	GDR GER	SWM	1988—1992	4×100 m freestyle relay – 19 August 1986 - 16 September 2000: 3:40.57 (19 August 1986; Madrid, ESP); 4×200 m freestyle relay – 17 August 1986 - 3 August 2006: 7:59.33 (17 August 1986; Madrid, ESP), 7:55.47 (18 August 1987; Strasbourg, FRA)
Christer Stenberg	SWE	WPO	1980	4×100 m freestyle relay – 8 August 1963 - 27 June 1964: 4:14.0 (8 August 1963; Stockholm, SWE)
Natalie Steward	GBR	SWM	1960	100 m backstroke – 1 September 1960 - 19 August 1961: 1:10.8 (1 September 1960; Roma, ITA)
Antje Stille	GDR	SWM	1976	200 m backstroke – 29 February 1976 - 4 June 1976: 2:14.41 (29 February 1976; Ost-Berlin, GDR), 2:13.50 (13 March 1976; Tallinn, URS)
Hannah Stockbauer	GER	SWM	2000—2004	1500 m freestyle – 28 July 2001 - 27 March 2007: 16:01.02 (28 July 2001; Fukuoka, JPN), 16:00.18 (22 July 2003; Barcelona, ESP)
Lutz Stoklasa	FRG	SWM	1968—1972	100 m butterfly – 18 August 1968 - 14 August 1969: 58.4 tied (18 August 1968; Wuppertal, FRG), 58.0 (29 August 1968; West Berlin, FRG)
Kyle Stolk	NED	SWM	2014—2016	4×100 m freestyle mixed relay – 29 July 2017 - present: 3:21.81 (29 July 2017; Budapest, HUN)
Evelyn Stolze	GDR	SWM	1972	200 m medley – 28 August 1972: 2:25.45 (28 August 1972; München, FRG); 400 m medley – 6 September 1970 - 31 August 1972: 5:07.9 (6 September 1970; Barcelona, ESP), 5:06.96 (31 August 1972; München, FRG)
Astrid Strauß	GDR	SWM	1988	400 m freestyle – 17 June 1983 - 19 June 1986: 4:08.25 (17 June 1983; Gera, GDR), 4:08.07 (24 August 1983; Roma, ITA), 4:07.66 (21 August 1984; Moskva, URS); 800 m freestyle – 18 June 1983 - 29 July 1986: 8:29.61 (18 June 1983; Gera, GDR), 8:28.36 (26 May 1984; Magdeburg, GDR), 8:26.52 (21 June 1986; Ost-Berlin, GDR); 1500 m freestyle – 5 January 1984 - 28 July 2001: 16:13.55 (5 January 1984; Austin, USA); 4×200 m freestyle relay – 22 August 1983 - 3 August 2006: 8:02.27 (22 August 1983; Roma, ITA), 7:59.33 (17 August 1986; Madrid, ESP), 7:55.47 (18 August 1987; Strasbourg, FRA)
Rainer Strohbach	GDR	SWM	1976—1980	800 m freestyle – 26 July 1975 - 20 December 1975 and 13 March 1976 - 4 June 1976: 8:27.95 (26 July 1975; Cali, COL), 8:21.50 (13 March 1976; Tallinn, URS); 1500 m freestyle – 13 March 1976 - 4 June 1976: 15:42.70 (13 March 1976; Tallinn, URS)
Mietta Strumolo	ITA	SWM	1968	4×100 m freestyle relay – 17 September 1967 - 4 April 1968: 4:11.3 tied (17 September 1967; San Remo, ITA)
Vladimir Struzhanov	RUS URS	SWM	1956	400 m medley – 2 October 1954 - 1 May 1957 and 20 October 1957 - 6 June 1959: 5:15.4 (2 October 1954; Minsk, URS), 5:08.3 (17 March 1957; Moskva, URS), 5:12.9 (20 October 1957; Moskva, URS); 4×200 m freestyle relay – 4 November 1956 - 29 August 1960: 8:24.5 (4 November 1956; Moskva, URS), 8:34.7 (3 December 1956; Melbourne, AUS), 8:34.5 (3 August 1957; Moskva, URS), 8:27.1 (14 September 1957; Leipzig, GDR); 4×100 m medley relay – 14 August 1956 - 1 May 1957: 4:14.8 (14 August 1956; Moskva, URS)
Ivar Stukolkin	EST URS	SWM	1980	4×200 m freestyle relay – 8 March 1980 - 23 August 1983: 7:25.71 (8 March 1980; Leningrad, URS), 7:23.50 (23 July 1980; Moskva, URS)
Aleksandr Sukhorukov	RUS	SWM	2008—2016	4×200 m freestyle relay – 13 August 2008 - present: 7:03.70 (13 August 2008; Beijing, CHN), 6:59.15 (31 July 2009; Roma, ITA)
Elvi Svendsen	DEN	SWM	1936—1948	4×100 m freestyle relay – 8 February 1938 - 7 August 1938: 4:29.7 (8 February 1938; København, DEN)
Mats Svensson	SWE	SWM	1964	4×200 m freestyle relay – 22 August 1962 - 6 September 1964: 8:18.4 (22 August 1962; Leipzig, GDR), 8:16.2 (17 August 1963; Örebro, SWE), 8:14.3 (6 September 1964; Stockholm, SWE)
Vítězslav Svozil	CZE TCH	SWM	1960	100 m breaststroke – 1 May 1957 - 15 September 1957: 1:12.7 (1 May 1957; Piestany, TCH), 1:12.2 (18 August 1957; Brno, TCH)
József Szabó	HUN	SWM	1988	200 m breaststroke – 21 August 1986 - 18 August 1989: 2:14.27 (21 August 1986; Madrid, ESP), 2:13.87 (21 August 1987; Strasbourg, FRA), 2:13.52 (23 September 1988; Seoul, KOR)
Elemér Szathmáry	HUN	SWM	1948	4×200 m freestyle relay – 19 June 1948 - 3 August 1948: 8:57.4 (19 June 1948; Budapest, HUN), 8:53.6 (2 August 1948; London, GBR)
Éva Székely	HUN	SWM	1948—1956	100 m breaststroke – 9 May 1951 - 1 January 1953: 1:16.9 (9 May 1951; Moskva, URS); 400 m medley – 10 April 1953 - 28 March 1955 and 13 July 1955 - 2 December 1956: 5:50.4 (10 April 1953; Budapest, HUN), 5:40.8 (13 July 1955; Budapest, HUN); 4×100 m freestyle relay – 27 April 1952 - 1 August 1952: 4:27.2 (27 April 1952; Moskva, URS); 3×100 m medley relay – 14 October 1950 - 2 December 1950: 3:41.2 (14 October 1950; Budapest, HUN); 4×100 m medley relay – 24 July 1953 - 3 August 1954 and 3 September 1955 - 19 November 1956: 5:10.8 (24 July 1953; Budapest, HUN), 5:09.2 (10 August 1953; Bucharest, ROU), 4:57.8 (3 September 1955; Budapest, HUN)
Ripszima Székely	HUN	SWM	1956	4×100 m medley relay – 3 September 1955 - 19 November 1956: 4:57.8 (3 September 1955; Budapest, HUN)
Zoltán Szilárd	HUN	SWM	1948	4×100 m freestyle relay – 20 August 1949 - 6 May 1951: 3:56.8 (20 August 1949; Budapest, HUN), 3:55.0 (15 October 1950; Budapest, HUN), 3:53.2 (21 October 1950; Székesfehérvár, HUN)
László Szlamka	HUN	SWM	1964	4×100 m freestyle relay – 18 September 1960 - 24 May 1962: 3:46.9 (18 September 1960; Budapest, HUN)
Katalin Szőke	HUN	SWM	1952—1956	4×100 m freestyle relay – 27 April 1952 - 22 March 1957: 4:27.2 (27 April 1952; Moskva, URS), 4:24.4 (1 August 1952; Helsinki, FIN); 4×100 m medley relay – 3 August 1954 - 16 August 1954 and 3 September 1955 - 19 November 1956: 5:07.8 (3 August 1954; Budapest, HUN), 4:57.8 (3 September 1955; Budapest, HUN)
Liam Tancock	GBR	SWM	2008—2012	50 m backstroke – 2 April 2008 - 4 August 2018: 24.47 (2 April 2008; Sheffield, GBR), 24.08 (1 August 2009; Roma, ITA), 24.04 (2 August 2009; Roma, ITA); 100 m backstroke – 22 August 2007 - 19 April 2008: 53.46 tied (22 August 2007; Chiba, JPN); 4×100 m medley relay – 15 August 2008 - 15 August 2008: 3:33.83 (15 August 2008; Beijing, CHN)
Jean Taris	FRA	SWM	1928—1936	200 m freestyle – 9 June 1930 - 17 April 1938: 2:14.2 (9 June 1930; Paris, FRA), 2:12.2 (24 April 1932; Rheims, FRA); 400 m freestyle – 16 April 1931 - 29 August 1941: 4:47.0 (16 April 1931; Paris, FRA); 800 m freestyle – 30 May 1930 - 16 May 1948: 10:19.6 (30 May 1930; Paris, FRA), 10:17.2 (9 June 1931; Cannes, FRA), 10:15.6 (21 June 1932; Cannes, FRA)
Ulrike Tauber	GDR	SWM	1976—1980	200 m backstroke – 14 March 1974 - 26 April 1974: 2:21.13 (14 March 1974; Magdeburg, GDR); 200 m medley – 18 August 1974 - 5 June 1976 and 10 July 1977 - 18 March 1979: 2:18.97 (18 August 1974; Wien, AUT), 2:18.83 (10 June 1975; Wittenberg, GDR), 2:18.30 (12 March 1976; Tallinn, URS), 2:16.96 (10 July 1977; Leipzig, GDR), 2:15.95 (20 August 1977; Jonköping, SWE), 2:15.85 (28 August 1977; Ost-Berlin, GDR); 400 m medley – 21 August 1974 - 1 June 1976 and 24 July 1976 - 8 March 1980: 4:52.42 (21 August 1974; Wien, AUT), 4:52.20 (7 June 1975; Wittenberg, GDR), 4:42.77 (24 July 1976; Montréal, CAN)
Veniamin Tayanovich	RUS EUN	SWM	1992	4×100 m freestyle relay – 23 August 1991 - 23 July 1996: 3:17.11 (23 August 1991; Athina, GRE); 4×200 m freestyle relay – 27 July 1992 - 27 July 2001: 7:11.95 (27 July 1992; Barcelona, ESP)
Henry Taylor	GBR	SWM	1906—1920	400 m freestyle – 16 July 1908 - 21 September 1911: 5:36.8 (16 July 1908; London, GBR); 1500 m freestyle – 25 July 1908 - 8 July 1923: 22:48.4 (25 July 1908; London, GBR)
Alie te Riet	NED	SWM	1972	4×100 m medley relay – 18 April 1972 - 3 September 1972: 4:30.0 (18 April 1972; Hannover, FRG)
Judit Temes	HUN	SWM	1948—1956	4×100 m freestyle relay – 1 August 1952 - 22 March 1957: 4:24.4 (1 August 1952; Helsinki, FIN); 3×100 m medley relay – 14 October 1950 - 2 December 1950: 3:41.2 (14 October 1950; Budapest, HUN); 4×100 m medley relay – 3 August 1954 - 16 August 1954: 5:07.8 (3 August 1954; Budapest, HUN)
Hannie Termeulen	NED	SWM	1948—1952	3×100 m medley relay – 14 December 1946 - 14 October 1950: 3:46.3 (14 December 1946; Amsterdam, NED), 3:42.4 (28 April 1947; Arnhem, NED)
Erica Terpstra	NED	NOC*NSF/SWM	1960—2010	4×100 m freestyle relay – 25 August 1962 - 8 August 1963 and 27 June 1964 - 27 August 1966: 4:15.1 (25 August 1962; Leipzig, GDR), 4:12.3 (27 June 1964; Groningen, NED), 4:12.0 (15 October 1964; Tokyo, JPN); 4×100 m medley relay – 28 June 1964 - 25 August 1966: 4:39.1 (28 June 1964; Groningen, NED), 4:37.0 (18 October 1964; Tokyo, JPN)
Stev Theloke	GER	SWM	1996—2000	50 m backstroke – 29 July 1999 - 24 July 2001 and 25 May 2002 - 31 July 2002: 25.66 (29 July 1999; İstanbul, TUR), 25.63 (15 June 2000; Berlin, GER), 25.60 (6 July 2000; Helsinki, FIN), 25.26 (25 May 2002; Warendorf, GER); 100 m backstroke – 29 July 1998 - 22 July 2003: 54.43 (29 July 1998; New York, USA), 54.42 (31 July 2002; Berlin, GER); 4×100 m medley relay – 23 September 2000 - 27 July 2003: 3:35.88 (23 September 2000; Sydney, AUS)
Petra Thümer	GDR	SWM	1976	400 m freestyle – 20 July 1976 - 22 July 1980: 4:09.89 (20 July 1976; Montréal, CAN), 4:08.91 (17 July 1977; Jonköping, SWE); 800 m freestyle – 19 April 1976 - 27 July 1980: 8:47.52 (19 April 1976; Leeds, GBR), 8:40.68 (4 June 1976; Ost-Berlin, GDR), 8:37.14 (25 July 1976; Montréal, CAN), 8:35.04 (9 July 1977; Leipzig, GDR)
Ineke Tigelaar	NED	SWM	1964	4×100 m freestyle relay – 25 August 1962 - 8 August 1963 and 27 June 1964 - 15 October 1964: 4:15.1 (25 August 1962; Leipzig, GDR), 4:12.3 (27 June 1964; Groningen, NED)
Ans Timmermans	NED	SWM	1936	4×100 m freestyle relay – 28 March 1934 - 24 May 1936: 4:41.2 (28 March 1934; Rotterdam, NED), 4:33.3 (14 April 1934; Rotterdam, NED)
Günter Tittes	GDR GER	SWM	1960	100 m breaststroke – 5 July 1961 - 7 July 1962: 1:10.8 (5 July 1961; Ost-Berlin, GDR); 4×100 m medley relay – 18 June 1960 - 6 August 1960: 4:16.1 (18 June 1960; Ost-Berlin, GDR)
Vladimir Tkachenko	URS UKR	SWM	1988	4×100 m freestyle relay – 25 August 1983 - 23 August 1984 and 23 September 1988 - 23 August 1991: 3:20.88 (25 August 1983; Roma, ITA), 3:18.33 (23 September 1988; Seoul, KOR)
Ödön Toldi	HUN	SWM	1908—1912	100 m breaststroke – 12 June 1910 - 2 October 1910: 1:21.8 (12 June 1910; Budapest, HUN)
Andrea Toniato	ITA	SWM	2016	4×100 m medley mixed relay – 19 August 2014 - 19 August 2014: 3:48.57 (19 August 2014; Berlin, GER)
Kira Toussaint	NED	SWM	2016—2020	50 m backstroke – 10 April 2021 - present: 27.21 (10 April 2021; Eindhoven, NED)
Birgit Treiber	GDR	SWM	1976—1980	200 m backstroke – 6 June 1975 - 29 February 1976 and 4 June 1976 - 27 July 1980: 2:16.10 (6 June 1975; Wittenberg, GDR), 2:15.46 (26 July 1975; Cali, COL), 2:12.47 (4 June 1976; Ost-Berlin, GDR); 400 m medley – 1 June 1976 - 24 July 1976: 4:48.79 (1 June 1976; Ost-Berlin, GDR)
György Tumpek	HUN	SWM	1956	100 m butterfly – 31 May 1953 - 12 July 1959: 1:04.3 (31 May 1953; Budapest, HUN), 1:03.7 (8 May 1954; Budapest, HUN), 1:02.3 (1 August 1954; Budapest, HUN), 1:02.1 (20 November 1954; Székesfehérvár, HUN), 1:02.0 (21 December 1954; Budapest, HUN), 1:01.8 (19 June 1956; München, FRG), 1:03.4 (8 May 1954; Budapest, HUN), 1:02.3 (19 August 1957; Budapest, HUN), 1:02.2 (8 June 1958; Budapest, HUN); 200 m butterfly – 15 September 1955 - 10 March 1956 and 19 June 1956 - 1 May 1957: 2:25.7 (15 September 1955; München, FRG), 2:24.7 (18 September 1955; Karlsruhe, FRG), 2:21.7 (19 June 1956; München, FRG); 4×100 m medley relay – 5 August 1954 - 14 August 1956: 4:18.1 (5 August 1954; Budapest, HUN)
Willy den Turk (DNS)	NED	SWM	1928	100 m backstroke – 17 July 1927 - 11 August 1928: 1:22.0 (17 July 1927; Rotterdam, NED)
Judit Turóczy	HUN	SWM	1964—1972	100 m freestyle – 19 August 1967 - 23 August 1969: 1:00.8 (19 August 1967; Budapest, HUN), 1:00.4 (28 June 1968; Budapest, HUN), 1:00.2 (13 July 1968; Budapest, HUN), 1:00.0 (8 August 1969; Budapest, HUN); 200 m medley – 14 July 1968 - 23 August 1969: 2:29.6 (14 July 1968; Budapest, HUN); 4×100 m freestyle relay – 13 July 1968 - 26 October 1968 and 24 June 1969 - 11 September 1970: 4:07.5 (13 July 1968; Budapest, HUN), 4:02.6 (24 June 1969; Budapest, HUN)
Lutz Unger	GDR	SWM	1972	4×100 m medley relay – 8 September 1970 - 25 August 1974: 3:54.4 (8 September 1970; Barcelona, ESP), 3:53.8 (4 September 1971; Leipzig, GDR), 3:52.12 (4 September 1972; München, FRG)
Wiltrud Urselmann	GER FRG	SWM	1960—1964	100 m breaststroke – 12 March 1960 - 14 July 1960: 1:19.1 (12 March 1960; Zürich, SUI); 200 m breaststroke – 6 June 1960 - 27 August 1960: 2:50.2 (6 June 1960; Aachen, FRG)
Vitaly Ushakov	RUS URS	WPO	1952	4×100 m freestyle relay – 6 May 1951 - 23 January 1954: 3:53.0 (6 May 1951; Moskva, URS); 4×200 m freestyle relay – 10 May 1951 - 13 May 1951: 8:46.9 (10 May 1951; Moskva, URS)
Ivan Usov	RUS	SWM	2004	4×100 m freestyle relay – 20 July 2003 - 25 March 2007: 3:14.06 (20 July 2003; Barcelona, ESP)
Darya Ustinova	ROC RUS	SWM	2016—2020	4×100 m medley mixed relay – 12 July 2014 - 19 August 2014: 3:49.05 (12 July 2014; Dordrecht, NED)
Nataliya Ustinova	URS UZB	SWM	1964—1968	4×100 m freestyle relay – 27 August 1966 - 4 April 1968: 4:11.3 (27 August 1966; Utrecht, NED)
Georges Vallerey, Jr.	FRA	SWM	1948	100 m backstroke – 24 June 1945 - 14 March 1952: 1:06.6 (24 June 1945; Casablanca, MAR), 1:06.2 (3 September 1946; Troyes, FRA), 1:05.2 (18 September 1946; Marseille, FRA), 1:04.9 (26 July 1949; Casablanca, MAR); 200 m backstroke – 3 June 1945 - 1 July 1949 and 28 July 1949 - 29 April 1952: 2:26.8 (3 June 1945; Casablanca, MAR), 2:25.9 (15 September 1946; Marseille, FRA), 2:25.4 (17 September 1946; Marseille, FRA), 2:22.7 (28 July 1949; Casablanca, MAR); 4×100 m freestyle relay – 15 December 1946 - 20 August 1949: 3:58.4 (15 December 1946; Toulouse, FRA); 4×200 m freestyle relay – 24 September 1946 - 14 September 1947: 9:05.4 (24 September 1946; Cannes, FRA), 9:03.4 (12 September 1947; Monte Carlo, MON); 3×100 m medley relay – 8 August 1946 - 13 May 1951: 3:16.9 (8 August 1946; Toulouse, FRA), 3:12.3 (16 September 1946; Marseille, FRA)
Gisèle Vallerey	FRA	SWM	1948	100 m breaststroke – 23 April 1950 - 9 May 1951: 1:17.4 (23 April 1950; Casablanca, MAR)
Wilma van Hofwegen-van Rijn	NED	SWM	1996—2000	4×100 m freestyle relay – 16 September 2000 - 23 July 2001: 3:39.83 (16 September 2000; Sydney, AUS)
Svetlana Varganova	RUS URS	SWM	1980	200 m breaststroke – 30 March 1979 - 6 April 1979: 2:31.09 (30 March 1979; Minsk, URS)
Mark Veens	NED	SWM	1996—2004	4×100 m freestyle relay – 26 July 1999 - 20 July 2003: 3:16.27 (26 July 1999; İstanbul, TUR), 3:14.56 (22 July 2001; Fukuoka, JPN)
Hennie van der Velde	NED	SWM	1960	4×100 m freestyle relay – 11 June 1960 - 24 August 1962: 4:18.2 (11 June 1960; Leipzig, GDR)
Marleen Veldhuis	NED	SWM	2004—2012	50 m freestyle – 24 March 2008 - 17 August 2008 and 19 April 2009 - 2 August 2009: 24.09 (24 March 2008; Eindhoven, NED), 23.96 (19 April 2009; Amsterdam, NED); 50 m butterfly – 19 April 2009 - 31 July 2009: 25.33 (19 April 2009; Amsterdam, NED), 25.28 (31 July 2009; Roma, ITA); 4×100 m freestyle relay – 18 March 2008 - present: 3:33.62 (18 March 2008; Eindhoven, NED), 3:31.72 (26 July 2009; Roma, ITA)
Ria van Velsen	NED	SWM	1960—1964	100 m backstroke – 20 July 1958 - 23 July 1958, 26 July 1959 - 1 September 1960, and 19 August 1961 - 23 June 1963: 1:12.3 (20 July 1958; Nijmwegen, NED), 1:11.7 (26 July 1959; Waalwijk, NED), 1:11.0 (12 June 1960; Leipzig, GDR), 1:10.9 (10 July 1960; Maastricht, NED), 1:10.6 (19 August 1961; Zwolle, NED), 1:10.5 (19 August 1961; Zwolle, NED), 1:10.3 (17 March 1962; Rotterdam, NED), 1:10.2 (5 August 1962; Soest, FRG), 1:10.1 (9 September 1962; Rotterdam, NED); 4×100 m medley relay – 26 July 1959 - 15 July 1960 and 28 June 1964 - 18 October 1964: 4:51.5 (26 July 1959; Waalwijk, NED), 4:47.3 (12 June 1960; Leipzig, GDR), 4:39.1 (28 June 1964; Groningen, NED)
Zoltán Verrasztó	HUN	SWM	1972—1980	400 m medley – 2 April 1976 - 3 September 1977: 4:26.00 (2 April 1976; Long Beach, USA)
Sebastiaan Verschuren	NED	SWM	2012—2016	4×100 m freestyle mixed relay – 8 August 2015 - 29 July 2017: 3:23.10 (8 August 2015; Kazan, RUS)
Annemarie Verstappen	NED	SWM	1984	50 m freestyle – 30 January 1982 - 16 February 1986: 26.00 (30 January 1982; Amersfoort, NED), 25.97 (9 July 1983; Amersfoort, NED), 25.64 (9 July 1983; Amersfoort, NED)
Rie Vierdag	NED	SWM	1924—1932	4×100 m freestyle relay – 12 August 1932 - 12 November 1933: 4:47.5 (12 August 1932; Los Angeles, USA)
Nel van Vliet	NED	SWM	1948	100 m breaststroke – 29 July 1946 - 23 April 1950: 1:19.4 (29 July 1946; Aalst, BEL), 1:19.0 (1 August 1946; The Hague, NED), 1:18.2 (28 April 1947; Arnhem, NED); 200 m breaststroke – 17 August 1946 - 21 October 1950: 2:52.6 (17 August 1946; Bilthoven, NED), 2:51.9 (29 March 1947; Amsterdam, NED), 2:49.2 (20 July 1947; Hilversum, NED); 3×100 m medley relay – 14 December 1946 - 14 October 1950: 3:46.3 (14 December 1946; Amsterdam, NED), 3:42.4 (28 April 1947; Arnhem, NED)
Renate Vogel	GDR	SWM	1972	100 m breaststroke – 18 August 1973 - 23 August 1974 and 1 September 1974 - 2 June 1976: 1:13.79 (18 August 1973; Utrecht, NED), 1:13.74 (4 September 1973; Beograd, YUG), 1:12.91 (22 August 1974; Wien, AUT), 1:12.28 (1 September 1974; Concord, USA); 200 m breaststroke – 5 September 1973 - 6 July 1974: 2:40.01 (5 September 1973; Beograd, YUG); 4×100 m medley relay – 3 September 1972 - 5 June 1976: 4:27.58 (3 September 1972; München, FRG), 4:24.91 (3 September 1972; München, FRG), 4:21.70 (4 September 1973; Beograd, YUG), 4:16.84 (4 September 1973; Beograd, YUG), 4:13.78 (24 August 1974; Wien, AUT)
Sandra Völker	GER	SWM	1992—2004	50 m backstroke – 22 May 1997 - 8 April 2000 and 17 June 2000 - 25 May 2005: 29.00 (22 May 1997; Monte Carlo, MON), 28.90 (12 June 1999; Monte Carlo, MON), 28.78 (12 June 1999; Monte Carlo, MON), 28.71 (1 August 1999; İstanbul, TUR), 28.25 (17 June 2000; Berlin, GER); 4×100 m freestyle relay – 23 July 2001 - 31 July 2006: 3:39.58 (23 July 2001; Fukuoka, JPN), 3:36.00 (29 July 2002; Berlin, GER); 4×100 m medley relay – 4 August 2002 - 24 March 2008: 4:01.54 (4 August 2002; Berlin, GER)
Dmitry Volkov	RUS URS EUN	SWM	1988—1992	50 m breaststroke – 20 February 1986 - 25 June 1986 and 19 September 1988 - 25 June 1995: 28.48 (20 February 1986; Moskva, URS), 28.12 (19 September 1988; Seoul, KOR), 28.10 (14 June 1989; Kishinev, URS), 28.05 (25 June 1989; Canet Roussillon, FRA); 100 m breaststroke – 19 February 1984 - 20 August 1985: 1:02.81 (19 February 1984; Moskva, URS); 4×100 m medley relay – 25 August 1984 - 31 July 1992: 3:42.15 (25 August 1984; Moskva, URS), 3:41.51 (23 August 1987; Strasbourg, FRA), 3:40.66 (16 March 1988; Tallinn, URS), 3:39.96 (25 September 1988; Seoul, KOR)
Atie Voorbij	NED	SWM	1960	100 m butterfly – 14 July 1955 - 1 May 1957 and 4 June 1957 - 30 August 1960: 1:13.7 (14 July 1955; Naarden, NED), 1:13.2 (26 August 1955; Al-Jaza'ir, ALG), 1:13.1 (21 September 1955; Vlaardingen, NED), 1:11.9 (5 February 1956; Velsen, NED), 1:10.5 (12 November 1956; Hilversum, NED), 1:10.0 (19 August 1957; Barcelona, ESP), 1:10.5 (4 June 1957; Rhenen, NED); 4×100 m freestyle relay – 22 March 1957 - 1 May 1957: 4:23.0 (22 March 1957; Hilversum, NED); 4×100 m medley relay – 17 July 1955 - 3 September 1955, 19 November 1956 - 8 December 1956, 18 May 1957 - 25 July 1958, and 5 September 1958 - 26 July 1959: 5:00.1 (17 July 1955; Paris, FRA), 4:54.3 (19 November 1956; Hilversum, NED), 4:57.0 (18 May 1957; Blackpool, GBR), 4:52.9 (5 September 1958; Budapest, HUN)
Hans-Günther Vosseler	FRG	SWM	1972	4×200 m freestyle relay – 29 August 1972 - 21 August 1974: 7:41.69 (29 August 1972; München, FRG)
Arkady Vyatchanin	RUS	SWM	2004—2012	100 m backstroke – 22 July 2003 - 25 June 2006 and 11 August 2008 - 5 April 2009: 53.92 (22 July 2003; Barcelona, ESP), 53.06 (11 August 2008; Beijing, CHN); 200 m backstroke – 5 August 2006 - 2 August 2013: 1:55.44 (5 August 2006; Budapest, HUN), 1:54.93 (15 August 2008; Beijing, CHN), 1:54.90 (30 July 2009; Roma, ITA), 1:54.75 (31 July 2009; Roma, ITA); 4×100 m medley relay – 27 July 2003 - 1 July 2008 and 15 August 2008 - 2 August 2009: 3:34.72 (27 July 2003; Barcelona, ESP), 3:34.25 (24 March 2008; Eindhoven, NED), 3:33.59 (15 August 2008; Beijing, CHN), 3:31.92 (17 August 2008; Beijing, CHN)
Jopie Waalberg	NED	SWM	1936	200 m breaststroke – 11 May 1937 - 19 March 1941: 3:00.2 (11 May 1937; Amsterdam, NED), 2:58.0 (27 June 1937; Zaandijk, NED), 2:56.9 (2 October 1937; Gent, BEL)
Tini Wagner	NED	SWM	1936	4×100 m freestyle relay – 24 May 1936 - 8 February 1938: 4:32.8 (24 May 1936; Rotterdam, NED)
Wolfgang Wagner	GDR GER	SWM	1960—1964	4×100 m medley relay – 18 June 1960 - 6 August 1960: 4:16.1 (18 June 1960; Ost-Berlin, GDR)
Chris Walker-Hebborn	GBR	SWM	2012—2016	4×100 m medley mixed relay – 19 August 2014 - 6 August 2018: 3:44.02 (19 August 2014; Berlin, GER), 3:41.71 (5 August 2015; Kazan, RUS)
András Wanié	HUN	SWM	1928—1932	4×200 m freestyle relay – 7 September 1930 - 14 July 1935: 9:30.6 (7 September 1930; Budapest, HUN)
Rezső Wanié	HUN	SWM	1928	4×200 m freestyle relay – 7 September 1930 - 14 July 1935: 9:30.6 (7 September 1930; Budapest, HUN)
Jack Wardrop	GBR	SWM	1948—1956	200 m freestyle – 4 March 1955 - 1 May 1957: 2:03.4 (4 March 1955; Columbus, USA)
Mark Warnecke	GER FRG	SWM	1988—2000	50 m breaststroke – 25 June 1995 - 27 April 1996 and 28 July 2001 - 29 July 2001: 27.82 (25 June 1995; Warendorf, GER), 27.59 (28 July 2001; Fukuoka, JPN)
Winnie van Weerdenburg	NED	SWM	1964	4×100 m freestyle relay – 27 June 1964 - 27 August 1966: 4:12.3 (27 June 1964; Groningen, NED), 4:12.0 (15 October 1964; Tokyo, JPN)
Gudrun Wegner	GDR	SWM	1972	800 m freestyle – 3 September 1971 - 18 March 1972 and 12 July 1972 - 26 July 1972: 9:17.1 (3 September 1971; Leipzig, GDR), 9:10.5 (12 July 1972; Leipzig, GDR); 400 m medley – 6 September 1973 - 21 August 1974: 4:57.51 (6 September 1973; Beograd, YUG)
Birte Weigang	GDR	SWM	1988	50 m backstroke – 18 December 1983 - 22 September 1988: 29.59 (18 December 1983; Ost-Berlin, GDR), 29.16 (18 December 1983; Ost-Berlin, GDR); 50 m butterfly – 22 December 1987 - 23 September 1988: 27.75 (22 December 1987; Ost-Berlin, GDR)
Majvor Welander	SWE	SWM	1964	4×100 m freestyle relay – 8 August 1963 - 27 June 1964: 4:14.0 (8 August 1963; Stockholm, SWE)
Gabriele Wetzko	GDR	SWM	1968—1972	100 m freestyle – 23 August 1969 - 28 May 1973: 59.6 (23 August 1969; Budapest, HUN), 59.6 tied (13 April 1970; Novosibirks, URS), 59.6 tied (7 September 1970; Barcelona, ESP), 59.3 (11 September 1970; Barcelona, ESP), 59.21 (29 August 1972; München, FRG); 200 m freestyle – 24 August 1969 - 18 April 1972: 2:08.9 (24 August 1969; Budapest, HUN), 2:08.2 (10 September 1970; Barcelona, ESP); 400 m freestyle – 20 October 1968 - 8 September 1970: 4:40.2 (20 October 1968; Ciudad de México, MEX), 4:36.1 (15 August 1969; Wien, AUT); 200 m medley – 19 December 1971 - 18 April 1972: 2:27.5 tied (19 December 1971; Dresden, GDR); 4×100 m freestyle relay – 4 April 1968 - 13 July 1968, 26 October 1968 - 24 June 1969, and 11 September 1970 - 8 September 1973: 4:09.4 (4 April 1968; Tallinn, URS), 4:05.7 (26 October 1968; Ciudad de México, MEX), 4:00.8 (11 September 1970; Barcelona, ESP), 3:55.55 (30 August 1972; München, FRG); 4×100 m medley relay – 23 August 1969 - 18 April 1972 and 3 September 1972 - 3 September 1972: 4:34.8 (23 August 1969; Budapest, HUN), 4:30.2 (15 April 1970; Novosibirsk, URS), 4:30.1 (9 September 1970; Barcelona, ESP), 4:27.58 (3 September 1972; München, FRG)
Frank Wiegand	GDR GER	SWM	1960—1968	200 m freestyle – 3 July 1961 - 13 August 1961: 2:04.8 (3 July 1961; Ost-Berlin, GDR); 400 m freestyle – 18 May 1964 - 16 July 1966 and 25 August 1966 - 2 July 1967: 4:21.6 (18 May 1964; Ost-Berlin, GDR), 4:18.4 (20 August 1964; Dortmund, FRG), 4:17.2 (14 October 1964; Tokyo, JPN), 4:14.9 (15 October 1964; Tokyo, JPN), 4:11.1 (25 August 1966; Utrecht, NED); 800 m freestyle – 18 July 1965 - 1 August 1965: 9:03.9 (18 July 1965; Ost-Berlin, GDR); 200 m medley – 6 November 1967 - 15 April 1970: 2:13.5 (6 November 1967; Leipzig, GDR); 400 m medley – 22 August 1966 - 1 August 1967: 4:47.9 (22 August 1966; Utrecht, NED); 4×100 m freestyle relay – 31 August 1965 - 22 March 1966 and 26 August 1966 - 21 September 1967: 3:38.1 (31 August 1965; Leipzig, GDR), 3:36.8 (26 August 1966; Utrecht, NED); 4×100 m medley relay – 18 June 1960 - 6 August 1960, 21 August 1962 - 28 September 1963, and 7 November 1967 - 8 September 1970: 4:16.1 (18 June 1960; Ost-Berlin, GDR), 4:09.0 (21 August 1962; Leipzig, GDR), 3:56.5 (7 November 1967; Leipzig, GDR)
Geertje Wielema	NED	SWM	1952	200 m backstroke – 2 April 1950 - 1 May 1957: 2:35.3 (2 April 1950; Hilversum, NED); 3×100 m medley relay – 2 December 1950 - 31 December 1952: 3:35.9 (2 December 1950; Rotterdam, NED); 4×100 m medley relay – 27 November 1954 - 17 July 1955: 5:02.1 (27 November 1954; Rotterdam, NED)
Per Wikström	SWE	SWM	1980	4×100 m freestyle relay – 1 September 1979 - 7 March 1980: 3:26.34 (1 September 1979; Tokyo, JPN)
Aschwin Wildeboer	ESP	SWM	2004—2012	100 m backstroke – 5 April 2009 - 2 August 2009: 52.93 (5 April 2009; Malaga, ESP), 52.87 (30 June 2009; Pescara, ITA), 52.38 (1 July 2009; Pescara, ITA); 4×100 m medley relay – 1 July 2008 - 15 August 2008: 3:34.22 (1 July 2008; Pescara, ITA)
Pauline van der Wildt	NED	SWM	1964	4×100 m freestyle relay – 27 June 1964 - 27 August 1966: 4:12.3 (27 June 1964; Groningen, NED), 4:12.0 (15 October 1964; Tokyo, JPN)
David Wilkie	GBR	SWM	1972—1976	100 m breaststroke – 24 July 1975 - 17 August 1977: 1:04.26 (24 July 1975; Cali, COL), 1:03.43 (20 July 1976; Montréal, CAN); 200 m breaststroke – 2 September 1972 - 21 August 1986: 2:23.67 (2 September 1972; München, FRG), 2:20.94 (6 September 1973; Beograd, YUG), 2:19.28 (6 September 1973; Beograd, YUG), 2:18.23 (24 July 1975; Cali, COL), 2:15.11 (24 July 1976; Montréal, CAN); 200 m medley – 24 August 1974 - 9 July 1978: 2:06.32 (24 August 1974; Wien, AUT), 2:06.25 (4 April 1976; Long Beach, USA)
Diana Wilkinson	GBR	SWM	1960—1964	100 m freestyle – 23 June 1962 - 18 July 1963: 1:02.4 (23 June 1962; Blackpool, GBR); 4×100 m freestyle relay – 24 August 1962 - 25 August 1962: 4:17.6 (24 August 1962; Leipzig, GDR); 4×100 m medley relay – 25 July 1958 - 5 September 1958: 4:54.0 (25 July 1958; Cardiff, GBR)
Sue Williams	GBR	SWM	1968	400 m freestyle – 22 July 1967 - 20 April 1968: 4:45.6 (22 July 1967; Coventry, GBR)
Corrie Winkel	NED	SWM	1964	200 m backstroke – 20 August 1961 - 4 September 1961 and 1 September 1963 - 8 September 1963: 2:35.6 tied (20 August 1961; Zwolte, NED), 2:32.3 (1 September 1963; Soestduinen, NED); 4×100 m medley relay – 18 October 1964 - 25 August 1966: 4:37.0 (18 October 1964; Tokyo, JPN)
Eva Wittke	GDR	SWM	1968	4×100 m medley relay – 23 August 1969 - 15 April 1970: 4:34.8 (23 August 1969; Budapest, HUN)
Sándor Wladár	HUN	SWM	1980	200 m backstroke – 15 March 1980 - 18 February 1983: 2:01.78 (15 March 1980; Budapest, HUN), 2:01.72 (28 June 1980; Budapest, HUN), 2:00.80 (12 September 1981; Split, YUG)
Zoltán Wladár	HUN	SWM	1976—1980	800 m freestyle – 6 June 1976 - 20 July 1976: 8:15.54 (6 June 1976; Graz, AUT)
Jörg Woithe	GDR	SWM	1980	50 m freestyle – 28 August 1987 - 24 August 1991: 22.47 (28 August 1987; München, GER); 100 m freestyle – 26 May 1980 - 21 August 1987: 50.55 (26 May 1980; Magdeburg, GDR), 50.49 (26 July 1980; Moskva, URS), 50.21 (26 July 1980; Moskva, URS), 50.14 (3 February 1981; Hamburg, FRG), 49.95 (12 March 1982; Moskva, URS), 49.81 (28 May 1982; Erfurt, GDR), 49.60 (3 August 1982; Guayaquil, ECU), 49.58 (18 June 1983; Gera, GDR)
Artur Wojdat	POL	SWM	1988—1992	400 m freestyle – 25 March 1988 - 23 September 1988: 3:47.38 (25 March 1988; Orlando, USA)
Martyn Woodroffe	GBR	SWM	1968	200 m butterfly – 13 July 1969 - 22 August 1970: 2:07.8 (13 July 1969; Santa Clara, USA)
Marcel Wouda	NED	SWM	1992—2000	4×100 m freestyle relay – 26 July 1999 - 22 July 2001: 3:16.27 (26 July 1999; İstanbul, TUR)
Vadim Yaroshchuk	URS UKR	SWM	1988	4×100 m medley relay – 16 March 1988 - 31 July 1992: 3:40.66 (16 March 1988; Tallinn, URS), 3:39.96 (25 September 1988; Seoul, KOR)
Yuliya Yefimova	ROC RUS	SWM	2008—2020	50 m breaststroke – 1 August 2009 - 3 August 2009: 30.24 (1 August 2009; Roma, ITA), 30.09 (2 August 2009; Roma, ITA), 29.78 (3 August 2009; Barcelona, ESP); 100 m breaststroke – 27 April 2009 - 29 July 2012: 1:05.80 (27 April 2009; Moskva, RUS), 1:05.41 (28 July 2009; Roma, ITA); 200 m breaststroke – 2 August 2012 - 1 August 2013: 2:20.92 (2 August 2012; London, GBR); 4×100 m medley relay – 30 July 2017 - present: 3:53.38 (30 July 2017; Budapest, HUN)
Roman Yegorov	RUS	SWM	1996	4×100 m freestyle relay – 23 July 1996 - 26 July 1999: 3:17.06 (23 July 1996; Atlanta, USA), 3:16.85 (22 August 1997; Sevilla, ESP)
Nikolay Yevseyev	RUS URS	SWM	1988	4×100 m freestyle relay – 23 September 1988 - 23 August 1991: 3:18.33 (23 September 1988; Seoul, KOR)
Kharis Yunichev	RUS URS	SWM	1956	200 m breaststroke – 15 August 1956 - 4 April 1957: 2:34.0 (15 August 1956; Moskva, URS), 2:33.0 (4 November 1956; Moskva, URS)
Sergey Zabolotnov	URS UZB	SWM	1988	200 m backstroke – 4 July 1983 - 24 May 1984 and 21 August 1984 - 3 March 1985: 2:00.42 (4 July 1983; Edmonton, CAN), 2:00.39 (15 February 1984; Moskva, URS), 1:58.41 (21 August 1984; Moskva, URS)
Sándor Záborszky	HUN	SWM	1956	1500 m freestyle – 6 May 1956 - 10 August 1956: 18:36.9 (6 May 1956; Budapest, HUN), 18:28.4 (2 June 1956; Budapest, HUN)
Larisa Zakharova	RUS URS	SWM	1968	200 m medley – 3 April 1968 - 14 July 1968: 2:30.1 (3 April 1968; Tallinn, URS)
Steffen Zesner	GDR GER	SWM	1988—1996	4×100 m freestyle relay – 21 August 1987 - 23 September 1988: 3:19.17 (21 August 1987; Strasbourg, FRA)
Nina Zhivanevskaya	RUS ESP EUN	SWM	1992—2008	50 m backstroke – 8 April 2000 - 17 June 2000 and 22 March 2008 - 23 March 2008: 28.69 (8 April 2000; Madrid, ESP), 28.13 (22 March 2008; Eindhoven, NED)
Hans Zierold	GDR GER FRG	SWM	1956—1960	200 m butterfly – 14 September 1957 - 14 July 1959: 2:21.4 (14 September 1957; Leipzig, GDR)
Flavia Zoccari	ITA	SWM	2008	4×200 m freestyle relay – 14 August 2008 - 30 July 2009: 7:49.76 (14 August 2008; Beijing, CHN)
Anastasiya Zuyeva-Fesikova	ROC RUS	SWM	2008—2020	50 m backstroke – 23 March 2008 - 25 June 2009 and 29 July 2009 - 30 July 2009: 28.05 (23 March 2008; Eindhoven, NED), 27.38 (29 July 2009; Roma, ITA); 100 m backstroke – 19 February 2008 - 20 March 2008, 21 March 2008 - 12 August 2008, and 27 July 2009 - 28 July 2009: 59.64 (19 February 2008; St. Petersburg, RUS), 59.41 (21 March 2008; Eindhoven, NED), 58.48 (27 July 2009; Roma, ITA); 200 m backstroke – 1 August 2009 - present: 2:04.94 (1 August 2009; Roma, ITA); 4×100 m medley relay – 30 July 2017 - present: 3:53.38 (30 July 2017; Budapest, HUN)
Klaas-Erik Zwering	NED	SWM	2000—2004	4×100 m freestyle relay – 22 July 2001 - 20 July 2003: 3:14.56 (22 July 2001; Fukuoka, JPN)