Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes | 
|---|---|---|---|---|---|
| Nataliya Sadova |  RUS | ATH | Olympics | 1996—2008 | 2–0–0 1995 Fukuoka ATH gold: discus throw; 1997 Catania ATH gold: discus throw | 
| Aleksandr Sadovnikov |  RUS | SWM | Olympics / YOG | 2014—2016 | 2–2–0 2015 Gwangju SWI gold: 4×100 m medley relay (swam in heats only); 2017 Taipei SWI gold: 100 m butterfly, silver: 4×100 m medley relay; 2019 Napoli SWI silver: 4×100 m medley relay (swam in heats only) | 
| Rich Saeger |  USA | SWM | Olympics | 1984 | 0–1–0 1983 Edmonton SWI silver: 4×200 m freestyle relay | 
| María Dolores Sáez de Ibarra |  ESP | DIV | Olympics | 1996—2004 | 0–1–0 2001 Beijing DIV silver: synchronized platform | 
| Davit Safaryan |  ARM | WRE | Olympics | 2012—2016 | 0–1–0 2013 Kazan WRE silver: freestyle welterweight -66 kg | 
| Mikhail Safonov |  RUS  URS | DIV | Olympics | 1964—1968 | 0–0–1 1965 Budapest DIV bronze: 3 m springboard | 
| Natallia Safronnikava |  BLR | ATH | Olympics | 1996—2004 | 0–0–2 2001 Beijing ATH bronze: 200 m and 4×400 m relay | 
| Natallia Safronova |  BLR | ATH | Olympics | 2000—2004 | 0–1–0 2001 Beijing ATH silver: triple jump | 
| Renat Saidov |  RUS | JUD | Olympics | 2016 | 0–1–1 2011 Shenzhen JUD silver: open class; 2013 Kazan JUD bronze: heavyweight +100 kg | 
| Sainjargalyn Nyam-Ochir |  MGL | JUD | Olympics | 2012 | 0–0–1 2009 Beograd JUD bronze: lightweight -73 kg | 
| Yoshihiko Saito |  JPN | ATH | Olympics | 1992 | 0–3–1 1991 Sheffield ATH silver: 400 m hurdles; 1993 Buffalo ATH silver: 400 m hurdles and 4×400 m relay; 1995 Fukuoka ATH bronze: 400 m hurdles | 
| Yoshihiro Saito |  JPN | GAR | Olympics | 2000 | 2–1–0 1997 Catania GYM gold: horizontal bar, silver: team; 1999 Palma de Mallorca GYM gold: team | 
| Martynas Sajus |  LTU | BK3 | YOG | 2014 | 1–0–0 2017 Taipei BAS gold | 
| Zurab Sak'andelidze |  GEO  URS | BKB | Olympics | 1968—1972 | 0–2–0 1965 Budapest BAS silver; 1973 Moskva BAS silver | 
| Pınar Saka |  TUR | ATH | Olympics | 2012 | 0–1–0 2011 Shenzhen ATH silver: 4×400 m relay | 
| Sho Sakai |  JPN | DIV | Olympics | 2016—2020 | 0–0–1 2011 Shenzhen DIV bronze: synchronized springboard | 
| Toshiro Sakai |  JPN | TEN | Non-Medal | 1968 | 1–0–0 1970 Turin TEN gold: doubles | 
| Rytis Sakalauskas |  LTU | ATH | Olympics | 2012 | 0–1–0 2011 Shenzhen ATH silver: 100 m | 
| Koki Sakamoto |  JPN | GAR | Olympics | 2008 | 1–0–1 2007 Bangkok GYM gold: team, bronze: all-around | 
| Makoto Sakamoto |  USA | GAR | Olympics | 1964—1972 | 0–0–1 1965 Budapest GYM bronze: all-around | 
| Vyacheslav Sakayev |  RUS | ATH | Olympics | 2012 | 0–0–1 2007 Bangkok ATH bronze: 4×400 m relay (ran in heats only) | 
| Oleg Sakirkin |  KAZ | ATH | Olympics | 2000 | 0–1–1 1989 Duisburg ATH bronze: triple jump (competed for the Soviet Union); 1993 Buffalo ATH silver: triple jump | 
| Koji Sakurai |  JPN | ATH | Olympics | 1956—1964 | 0–1–0 1959 Torino ATH silver: triple jump | 
| Olha Saladukha |  UKR | ATH | Olympics | 2008—2020 | 1–1–0 2005 İzmir ATH silver: triple jump; 2007 Bangkok ATH gold: triple jump | 
| Ana Maria Sălăjan |  ROU | ATH | Olympics | 1964 | 0–0–1 1961 Sofia ATH bronze: shot put (competed as Ana Maria Roth) | 
| Andrzej Salamon |  POL | SWM | Olympics | 1960 | 0–2–0 1959 Torino SWI silver: 100 m freestyle; 1961 Sofia SWI silver: 100 m freestyle | 
| Julio César Salazar |  MEX | ATH | Olympics | 2016 | 0–2–0 2017 Taipei ATH silver: 20 km walk and 20 km walk team | 
| Erasmo Salemme |  ITA | VVO | Olympics | 1976 | 1–0–0 1970 Torino VOL gold | 
| Michel Salesse |  FRA | FEN | Olympics | 1980—1984 | 0–0–1 1981 București FEN bronze: épée team | 
| Annette Salmeen |  USA | SWM | Olympics | 1996 | 0–0–1 1995 Fukuoka SWI bronze: 200 m butterfly | 
| Vladimir Salnikov |  RUS  URS | SWM | Olympics | 1976—1988 | 2–0–0 1983 Edmonton SWI gold: 400 m freestyle and 1500 m freestyle | 
| Hermann Salomon |  GER  FRG | ATH | Olympics | 1960—1968 | 1–2–0 1959 Torino ATH gold: javelin throw, silver: pentathlon (competed for West Germany); 1963 Porto Alegre ATH silver: javelin throw (competed for West Germany) | 
| Erika Salumäe |  EST  URS | CTR | Olympics | 1988—1996 | 2–1–0 1983 Edmonton CYC gold: sprint and 1000 m time trial, silver: points race (compete for the Soviet Union) | 
| Ileana Salvador |  ITA | ATH | Olympics | 1992 | 1–0–0 1989 Duisburg ATH gold: 5 km walk | 
| Juan José Salvador |  ESP | VVO | Olympics | 2000 | 0–1–0 1995 Fukuoka VOL silver | 
| Cesare Salvadori |  ITA | FEN | Olympics | 1964—1972 | 1–1–2 1963 Porto Alegre FEN bronze: sabre team; 1967 Tokyo FEN gold: sabre team, silver: sabre; 1970 Torino FEN bronze: sabre team | 
| Maria Aurora Salvagno |  ITA | ATH | Non-starter | 2008 | 1–0–0 2009 Beograd ATH gold: 4×100 m relay | 
| Ilaria Salvatori |  ITA | FEN | Olympics | 2008—2012 | 1–1–0 2001 Beijing FEN silver: foil team; 2005 İzmir FEN gold: foil team | 
| Luigi Samele |  ITA | FEN | Olympics | 2012—2020 | 0–1–1 2009 Beograd FEN silver: sabre team, bronze: sabre | 
| Mahmoud Samimi |  IRI | ATH | Olympics | 2016 | 0–1–0 2009 Beograd ATH silver: discus throw | 
| Anatoly Samotsvetov |  RUS  URS | ATH | Olympics | 1956—1960 | 0–1–0 1959 Torino ATH silver: hammer throw | 
| Aleksandr Samsonov |  RUS  URS | SWM | Olympics | 1972 | 1–1–0 1973 Moskva SWI gold: 4×200 m freestyle relay, silver: 400 m freestyle | 
| Dani Samuels-Stevens |  AUS | ATH | Olympics | 2008—2020 | 1–1–0 2007 Bangkok ATH silver: discus throw; 2009 Beograd ATH gold: discus throw | 
| Jessica Samuelsson |  SWE | ATH | Olympics | 2012 | 1–0–0 2009 Beograd ATH gold: heptathlon | 
| Esther San Miguel |  ESP | JUD | Olympics | 2000—2008 | 0–0–1 1999 Palma de Mallorca JUD bronze: half-heavyweight -78 kg | 
| Ángel Sánchez |  CUB | JUD | Olympics | 1996—2000 | 0–1–2 1995 Fukuoka JUD silver: half-heavyweight -95 kg; 1999 Palma de Mallorca JUD bronze: heavyweight +100 kg and open class | 
| Germán Sánchez |  MEX | DIV | Olympics | 2008—2016 | 0–0–2 2013 Kazan DIV bronze: synchronized platform and team | 
| Javier Sánchez |  ESP | WPO | Olympics | 2000—2004 | 1–0–0 1999 Palma de Mallorca WAP gold | 
| Julián Sánchez |  MEX | DIV | Olympics | 2012 | 0–1–0 2011 Shenzhen DIV silver: 3 m springboard | 
| Laura Sánchez |  MEX | DIV | Olympics | 2004—2012 | 3–2–0 2007 Bangkok DIV gold: team; 2009 Beograd DIV gold: synchronized springboard and team, silver: 3 m springboard and synchronized platform | 
| Rosa Sánchez |  ESP | BKB | Olympics | 2004 | 1–0–0 1999 Palma de Mallorca BAS gold | 
| Kaitlin Sandeno |  USA | SWM | Olympics | 2000—2004 | 2–1–0 2007 Bangkok SWI gold: 200 m medley and 4×200 m freestyle relay, silver: 400 m medley | 
| Mirko Sandić |  SRB  YUG | WPO | Olympics / Other | 1960—1972 | 1–0–0 1961 Sofia WAP gold | 
| Viktor Saneyev |  GEO  URS | ATH | Olympics | 1968—1980 | 1–1–0 1970 Torino ATH gold: triple jump; 1973 Moskva ATH silver: triple jump | 
| Patrick Sang |  KEN | ATH | Olympics / Other | 1988—1992 | 1–0–0 1989 Duisburg ATH gold: 3000 m steeplechase | 
| Nongnuch Sanrat |  THA | ATH | Olympics | 2008 | 0–1–0 2007 Bangkok ATH silver: 4×100 m relay | 
| Anna Santamans |  FRA | SWM | Olympics / YOG | 2010—2016 | 0–1–0 2013 Kazan SWI silver: 50 m freestyle | 
| Daiane dos Santos |  BRA | GAR | Olympics | 2004—2012 | 1–1–0 2001 Beijing GYM silver: floor; 2005 İzmir GYM gold: floor | 
| Leire Santos |  ESP | DIV | Olympics | 2000—2004 | 0–1–0 2001 Beijing DIV silver: synchronized platform | 
| Luguelín Santos |  DOM | ATH | Olympics / YOG / Other | 2010—2020 | 4–0–0 2015 Gwangju ATH gold: 400 m and 4×400 m relay; 2017 Taipei ATH gold: 400 m and 4×400 m relay | 
| María de los Santos |  CUB | BKB | Olympics | 1980 | 0–1–0 1979 Ciudad de México BAS silver | 
| Marílson dos Santos |  BRA | ATH | Olympics | 2008—2016 | 2–0–0 1997 Catania ATH gold: half marathon; 1999 Palma de Mallorca ATH gold: half marathon | 
| Nicholas Santos |  BRA | SWM | Olympics | 2008—2012 | 1–1–2 2005 İzmir SWI bronze: 50 m freestyle and 50 m butterfly; 2007 Bangkok SWI gold: 50 m freestyle, silver: 50 m butterfly | 
| Vera Santos |  POR | ATH | Olympics | 2008—2012 | 0–1–0 2005 İzmir ATH silver: 20 km walk | 
| Michele Santucci |  ITA | SWM | Olympics | 2008—2016 | 0–1–2 2009 Beograd SWI silver: 4×100 m freestyle relay; 2013 Kazan SWI bronze: 100 m freestyle and 4×100 m freestyle relay | 
| Salvatore Sanzo |  ITA | FEN | Olympics | 2000—2008 | 0–1–0 2001 Beijing FEN silver: foil team | 
| Vladislav Sapeya |  BLR  URS | ATH | Olympics | 1968 | 0–0–1 1970 Torino ATH bronze: 4×100 m relay | 
| Aleksa Šaponjić |  SRB | WPO | Olympics | 2012 | 1–0–0 2011 Shenzhen WAP gold | 
| Jevgēņijs Saproņenko |  LAT | GAR | Olympics | 2004 | 1–0–0 2003 Daegu GYM gold: vault | 
| Aleksandr Saprykin |  RUS  URS | VVO | Olympics | 1972 | 1–0–0 1973 Moskva VOL gold | 
| Zlatan Saračević |  BIH | ATH | Olympics / Other | 1992 | 0–1–0 1983 Edmonton ATH silver: shot put (competed for Yugoslavia) | 
| Anna Sarayeva |  RUS | JUD | Olympics | 2000 | 0–0–1 2001 Beijing JUD bronze: half-middleweight -63 kg | 
| Sargis Sargsyan |  ARM | TEN | Olympics | 1996—2004 | 0–1–0 1993 Buffalo TEN silver: mixed doubles | 
| Mauro Sarmiento |  ITA | TKW | Olympics | 2008—2012 | 0–1–1 2005 İzmir TKW silver: middleweight -84 kg; 2007 Bangkok TKW bronze: middleweight -84 kg | 
| Mirosława Sarna |  POL | ATH | Olympics | 1968 | 0–2–0 1961 Sofia ATH silver: 4×100 m relay; 1965 Budapest ATH silver: 4×100 m relay | 
| Maciej Sarnacki |  POL | JUD | Olympics | 2016—2020 | 0–1–1 2011 Shenzhen JUD silver: heavyweight +100 kg; 2013 Kazan JUD bronze: heavyweight +100 kg | 
| Andrea Sartoretti |  ITA | VVO | Olympics | 1996—2004 | 0–0–1 1995 Fukuoka VOL bronze | 
| Ulrike Sarvari |  FRG | ATH | Olympics | 1988 | 0–0–1 1989 Duisburg ATH bronze: 4×100 m relay | 
| Natsumi Sasada |  JPN | GAR | YOG | 2010 | 0–2–2 2015 Gwangju GYM silver: team, bronze: all-around; 2017 Taipei GYM silver: balance beam, bronze: team | 
| Hisayoshi Sato |  JPN | SWM | Olympics | 2008 | 0–1–1 2005 İzmir SWI silver: 4×200 m freestyle relay, bronze: 4×100 m medley relay | 
| Ichiko Sato |  JPN | VVO | Olympics | 1988—1992 | 1–0–1 1981 București VOL bronze; 1985 Kobe VOL gold | 
| Megumi Sato |  JPN | ATH | Olympics | 1984—1992 | 0–0–1 1987 Zagreb ATH bronze: high jump | 
| Miho Sato |  JPN | ATH | Non-starter | 1964 | 0–1–0 1967 Tokyo ATH silver: 4×100 m relay | 
| Mitsuhiro Sato |  JPN | ATH | Olympics | 2004 | 0–0–1 2001 Beijing ATH bronze: 4×400 m relay | 
| Mitsuru Sato |  JPN | WRE | Olympics | 1988—1992 | 1–0–0 1981 București WRE gold: freestyle flyweight -52 kg | 
| Michael Sauer |  FRG | ATH | Olympics | 1968 | 1–0–1 1965 Budapest ATH bronze: triple jump; 1967 Tokyo ATH gold: triple jump | 
| Bryan Saunders |  CAN | ATH | Olympics | 1976—1984 | 0–1–1 1975 Roma ATH silver: 4×100 m relay, bronze: 400 m | 
| Nick Saunders |  BER | ATH | Olympics / Other | 1984—1992 | 0–0–1 1983 Edmonton ATH bronze: high jump | 
| Brian Saunderson |  CAN | ROW | Olympics | 1988—1992 | 0–0–1 1987 Zagreb ROW bronze: coxed fours | 
| Katerine Savard |  CAN | SWM | Olympics | 2012—2020 | 2–1–0 2013 Kazan SWI gold: 100 m butterfly, silver: 50 m butterfly; 2017 Taipei SWI gold: 4×100 m freestyle relay | 
| Anastasiya Savchenko |  RUS | ATH | Olympics | 2012 | 1–0–0 2013 Kazan ATH gold: pole vault | 
| Konstantin Savchishkin |  RUS | JUD | Olympics | 1996 | 0–1–0 1999 Palma de Mallorca JUD silver: half-middleweight -81 kg | 
| Boris Savchuk |  URS  UKR | ATH | Olympics | 1964 | 0–1–0 1970 Torino ATH silver: 4×400 m relay | 
| Valentyna Savchuk |  UKR | ATH | Olympics | 2000 | 0–0–1 1999 Palma de Mallorca ATH bronze: 10 km | 
| Cinzia Savi Scarponi |  ITA | SWM | Olympics | 1980 | 0–3–0 1983 Edmonton SWI silver: 100 m butterfly, 200 m medley, and 400 m medley | 
| Dejan Savić |  SRB  SCG | WPO | Olympics / Coach | 1996—2020 | 1–0–0 1995 Fukuoka WAP gold | 
| Milovan Savić |  CRO  YUG | ATH | Olympics | 1976—1980 | 0–2–0 1975 Roma ATH silver: 4×400 m relay; 1977 Sofia ATH silver: 800 m | 
| Nelė Savickytė-Žilinskienė |  LTU | ATH | Olympics | 1992—2000 | 0–1–0 1993 Buffalo ATH silver: high jump | 
| Galina Savitskaya |  BLR  URS | BKB | Olympics | 1988 | 2–1–0 1981 București BAS gold (competed as Galina Krisevich); 1985 Kobe BAS gold; 1987 Zagreb BAS silver | 
| Mykola Savolainen |  UKR | ATH | Olympics | 2004—2008 | 0–0–1 2005 İzmir ATH bronze: triple jump | 
| Amarilis Savón |  CUB | JUD | Olympics | 1992—2004 | 0–1–0 1995 Fukuoka JUD silver: extra-lightweight -48 kg | 
| Keisuke Sawaki |  JPN | ATH | Olympics | 1968—1972 | 3–0–0 1965 Budapest ATH gold: 5000 m; 1967 Tokyo ATH gold: 5000 m and 10000 m | 
| Seham El-Sawalhy |  EGY | TKW | Olympics | 2012—2016 | 0–0–1 2011 Shenzhen TKW bronze: welterweight -67 kg | 
| Svetlana Saykina |  RUS | ATH | Olympics | 2008—2012 | 0–0–1 2011 Shenzhen ATH bronze: discus throw | 
| Irina Sazonova |  ISL | GAR | Olympics | 2016 | 0–0–1 2011 Shenzhen GYM bronze: team (competed for Russia) | 
| Thomas Sbokos |  GRE | ATH | Olympics | 1996 | 0–0–1 1995 Fukuoka ATH bronze: 200 m | 
| Giovanni Scalzo |  ITA | FEN | Olympics | 1980—1992 | 2–2–1 1981 București FEN gold: sabre and sabre team; 1983 Edmonton FEN silver: sabre and sabre team; 1985 Kobe FEN bronze: sabre team | 
| Susie Scanlan |  USA | FEN | Olympics | 2012 | 0–1–0 2011 Shenzhen FEN silver: épée team | 
| Ylenia Scapin |  ITA | JUD | Olympics | 1996—2008 | 0–0–1 1995 Fukuoka JUD bronze: half-heavyweight -72 kg | 
| Roxana Scarlat |  ROU | FEN | Olympics | 1996—2004 | 0–0–1 1997 Catania FEN bronze: foil team | 
| Miloš Šćepanović |  MNE | WPO | Olympics | 2008—2016 | 2–1–0 2003 Daegu WAP silver; 2005 İzmir WAP gold; 2007 Bangkok WAP gold | 
| Jamie Schaffer |  CAN | ROW | Olympics | 1988 | 0–0–1 1987 Zagreb ROW bronze: coxed fours | 
| Marcel Schelbert |  SUI | ATH | Olympics | 1996 | 0–0–1 1999 Palma de Mallorca ATH bronze: 400 m hurdles | 
| Tobias Schellenberg |  GER | DIV | Olympics | 2004 | 0–0–2 2001 Beijing DIV bronze: synchronized springboard; 2003 Daegu DIV bronze: 1 m springboard | 
| Siegfried Schenke |  GDR | ATH | Olympics | 1972 | 1–1–0 1970 Torino ATH gold: 100 m, silver: 200 m | 
| Xuxa Scherer |  BRA | SWM | Olympics | 1996—2004 | 2–1–0 1995 Fukuoka SWI gold: 50 m freestyle and 100 m freestyle, silver: 4×100 m freestyle relay | 
| Adrian Schervan |  ROU | WPO | Olympics | 1976—1980 | 0–0–1 1981 București WAP bronze | 
| Christina Scherwin |  DEN | ATH | Olympics | 2004—2008 | 0–1–0 2003 Daegu ATH silver: javelin throw | 
| Novella Schiesaro |  ITA | BKB | Olympics | 1996 | 1–0–0 1995 Fukuoka BAS gold | 
| Katharina Schiller |  GER | SWM | Olympics | 2008 | 0–0–1 2007 Bangkok SWI bronze: 4×100 m freestyle relay | 
| Elfgard Schittenhelm |  FRG | ATH | Olympics | 1972 | 0–1–0 1973 Moskva ATH silver: 100 m | 
| Evelin Schlaak-Jahl |  GDR | ATH | Olympics | 1976—1980 | 0–1–0 1979 Ciudad de México ATH silver: discus throw (competed as Evelin Jahl) | 
| Alice Schlesinger |  GBR  ISR | JUD | Olympics | 2008—2016 | 2–0–0 2013 Kazan belt wrestling gold: freestyle -66 kg, Sambo gold: -64 kg (competed for Great Britain) | 
| Edsard Schlingemann |  NED | SWM | Olympics | 1984 | 0–2–0 1987 Zagreb SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay | 
| Conny Schmalfuß |  GER | DIV | Olympics | 2000—2004 | 0–2–0 2001 Beijing DIV silver: synchronized springboard; 2003 Daegu DIV silver: synchronized springboard | 
| Harald Schmid |  FRG | ATH | Olympics | 1976—1988 | 1–0–0 1979 Ciudad de México ATH gold: 400 m | 
| Heidi Schmid |  GER  FRG | FEN | Olympics | 1960—1968 | 1–0–2 1961 Sofia FEN gold: foil, bronze: foil team (competed for West Germany); 1965 Budapest FEN bronze: foil (competed for West Germany) | 
| Andreas Schmidt |  FRG | SWM | Olympics | 1976—1984 | 0–0–1 1983 Edmonton SWI bronze: 100 m freestyle | 
| Bill Schmidt |  USA | ATH | Olympics | 1972 | 0–1–0 1975 Roma ATH silver: javelin throw | 
| Kate Schmidt |  USA | ATH | Olympics | 1972—1976 | 0–2–0 1973 Moskva ATH silver: javelin throw; 1975 Roma ATH silver: javelin throw | 
| Sybille Schmidt |  GER | ROW | Olympics | 1992 | 0–0–1 1987 Zagreb ROW bronze: quadruple sculls (competed for East Germany) | 
| Walter Schmidt |  FRG | ATH | Olympics | 1976 | 0–1–0 1975 Roma ATH silver: hammer throw | 
| Wolfgang Schmidt |  GDR | ATH | Olympics | 1976—1980 | 1–0–0 1979 Ciudad de México ATH gold: discus throw | 
| Arnd Schmitt |  GER  FRG | FEN | Olympics / Other | 1988—2000 | 1–0–1 1991 Sheffield FEN gold: épée team (competed for Germany); 1993 Buffalo FEN bronze: épée (competed for Germany) | 
| Johannes Schmitt |  GER  FRG | ATH | Olympics | 1964 | 0–1–0 1963 Porto Alegre ATH silver: 4×400 m relay | 
| Pál Schmitt |  HUN | FEN | Olympics / Administrator | 1968—2022 | 1–0–0 1965 Budapest FEN gold: épée team | 
| Sonja Schöber |  GER | SWM | Olympics | 2008 | 0–0–1 2007 Bangkok SWI bronze: 4×100 m freestyle relay | 
| Jean-Pierre Schoebel |  FRA | ATH | Olympics | 1972 | 0–0–1 1967 Tokyo ATH bronze: 110 m hurdles | 
| Ilona Schoknecht-Slupianek |  GDR | ATH | Olympics | 1976—1980 | 1–0–0 1979 Ciudad de México ATH gold: shot put (competed as Ilona Slupianek) | 
| Stefan Scholz |  GER | ROW | Olympics | 1996 | 0–0–1 1989 Duisburg ROW bronze: eights | 
| Alexander Schowtka |  FRG | SWM | Olympics | 1984 | 0–2–1 1985 Kobe SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay, bronze: 4×100 m medley relay | 
| Terry Schroeder |  USA | WPO | Olympics / Coach / Other | 1984—2012 | 1–0–0 1979 Ciudad de México WAP gold | 
| Heidi Schüller |  FRG | ATH | Olympics | 1972 | 0–0–1 1970 Torino ATH bronze: 4×100 m relay | 
| Harry Schulting |  NED | ATH | Olympics | 1980 | 1–1–0 1979 Ciudad de México ATH gold: 400 m hurdles, silver: 4×400 m relay | 
| Dave Schultz |  USA | WRE | Olympics | 1984 | 0–1–0 1981 București WRE silver: freestyle welterweight -74 kg | 
| Marion Schulze |  GDR | FEN | Olympics | 1980 | 1–0–0 1979 Ciudad de México FEN gold: foil team | 
| Brad Schumacher |  USA | SWM/WPO | Olympics | 1996—2000 | 2–0–0 1995 Fukuoka SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay | 
| Ildikó Schwarczenberger-Tordasi |  HUN | FEN | Olympics | 1972—1980 | 0–0–1 1977 Sofia FEN bronze: foil | 
| Florian Schwarthoff |  GER  FRG | ATH | Olympics | 1988—2000 | 0–0–1 1989 Duisburg ATH bronze: 110 m hurdles (competed for West Germany) | 
| Tripp Schwenk |  USA | SWM | Olympics | 1992—1996 | 3–2–1 1991 Sheffield SWI gold: 200 m backstroke and 4×100 m medley relay, silver: 100 m backstroke; 1993 Buffalo SWI gold: 4×100 m medley relay, silver: 100 m backstroke, bronze: 200 m backstroke | 
| Fabio Scozzoli |  ITA | SWM | Olympics | 2012 | 0–2–0 2009 Beograd SWI silver: 100 m breaststroke and 4×100 m medley relay | 
| Jenni Screen |  AUS | BKB | Olympics | 2008—2012 | 0–0–1 2005 İzmir BAS bronze | 
| Angelo Scuri |  ITA | FEN | Olympics | 1984 | 2–1–1 1979 Ciudad de México FEN silver: foil team; 1981 București FEN gold: foil team; 1983 Edmonton FEN gold: foil team; 1987 Zagreb FEN bronze: foil team | 
| Bob Seagren |  USA | ATH | Olympics | 1968—1972 | 0–1–0 1967 Tokyo ATH silver: pole vault | 
| Milenko Sebić |  SRB | SHO | Olympics | 2016—2020 | 0–1–0 2007 Bangkok SHO silver: 50 m rifle three positions | 
| Roman Šebrle |  CZE | ATH | Olympics / Other | 2000—2012 | 1–0–0 1997 Catania ATH gold: decathlon | 
| Yury Sedykh |  URS | ATH | Olympics | 1976—1988 | 0–1–2 1975 Roma ATH bronze: hammer throw; 1977 Sofia ATH silver: hammer throw; 1979 Ciudad de México ATH bronze: hammer throw | 
| Mirjana Šegrt |  CRO  YUG | SWM | Olympics | 1968 | 2–1–1 1970 Torino SWI gold: 100 m freestyle and 100 m butterfly, silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay | 
| Cédric Séguin |  FRA | FEN | Olympics | 2000 | 0–2–0 1993 Buffalo FEN silver: sabre team; 1995 Fukuoka FEN silver: sabre team | 
| Bernardo Segura |  MEX | ATH | Olympics | 1996—2004 | 0–0–1 1993 Buffalo ATH bronze: 20 km | 
| Khamis Abdullah Seifeddine |  QAT  SUD | ATH | Olympics | 1996—2004 | 0–1–0 1999 Palma de Mallorca ATH silver: 3000 m steeplechase (competed for Qatar) | 
| Tania Seino |  CUB | BKB | Olympics | 1996—2000 | 0–2–0 1993 Buffalo BAS silver; 1997 Catania BAS silver | 
| Šaban Sejdi |  MKD  YUG | WRE | Olympics | 1976—1988 | 0–0–1 1977 Sofia WRE bronze: freestyle lightweight -68 kg | 
| Yury Selikhov |  RUS  URS  EUN | BKB | Olympics / Coach | 1968—1992 | 0–1–0 1965 Budapest BAS silver | 
| Alla Selina |  RUS  URS | DIV | Olympics | 1972 | 0–0–1 1973 Moskva DIV bronze: platform | 
| Pāvels Seļivanovs |  LAT  URS | VVO | Olympics | 1976—1980 | 1–0–0 1973 Moskva VOL gold | 
| Enn Sellik |  EST  URS | ATH | Olympics | 1976—1980 | 1–0–0 1977 Sofia ATH gold: 5000 m | 
| Nédia Semedo |  POR | ATH | Olympics | 2004 | 0–1–0 2001 Beijing ATH silver: 800 m | 
| Maksym Semiankiv |  UKR | GAR | Olympics | 2016 | 0–1–0 2013 Kazan GYM silver: team | 
| Uļjana Semjonova |  LAT  URS | BKB | Olympics | 1976—1980 | 1–0–0 1973 Moskva BAS gold | 
| Andrey Semyonov |  RUS | ATH | Olympics | 2000 | 0–1–0 2003 Daegu ATH silver: 4×400 m relay | 
| Konstantin Semyonov |  ROC  RUS | VBV | Olympics | 2012—2020 | 0–0–1 2013 Kazan BVO bronze | 
| Zinaida Sendriūtė |  LTU | ATH | Olympics | 2008—2016 | 0–1–0 2011 Shenzhen ATH silver: discus throw | 
| Kyoko Seo |  JPN | GAR | Olympics | 1992 | 1–2–3 1991 Sheffield GYM gold: horse vault, silver: uneven bars, bronze: all-around and balance beam; 1993 Buffalo GYM silver: uneven bars, bronze: team | 
| Seo Myeong-Cheol |  KOR | FEN | YOG | 2014 | 0–1–0 2019 Napoli FEN silver: foil team | 
| Seo Seung-Jae |  KOR | BDM | Olympics / YOG | 2014—2020 | 1–0–0 2017 Taipei BDM gold: doubles | 
| Seong Ji-Hyeon |  KOR | BDM | Olympics | 2012—2016 | 4–0–0 2013 Kazan BDM gold: singles and team; 2015 Gwangju BDM gold: singles and team | 
| Seong Min |  KOR | SWM | Olympics | 2000—2008 | 0–1–0 2005 İzmir SWI silver: 50 m backstroke | 
| Amru Seoud |  EGY | ATH | Olympics | 2008—2012 | 1–2–0 2007 Bangkok ATH gold: 200 m; 2009 Beograd ATH silver: 100 m and 200 m | 
| Hezekiél Sepeng |  RSA | ATH | Olympics / Other | 1996—2004 | 1–1–0 1995 Fukuoka ATH gold: 800 m; 1997 Catania ATH silver: 800 m | 
| Bona Septano |  INA | BDM | Olympics | 2012 | 0–0–1 2007 Bangkok BDM bronze: team | 
| Andriy Serdinov |  UKR | SWM | Olympics | 2000—2008 | 3–2–1 2001 Beijing SWI silver: 100 m butterfly and 4×100 m medley relay; 2003 Daegu SWI gold: 50 m butterfly, 100 m butterfly, and 4×100 m medley relay, bronze: 4×100 m freestyle relay | 
| Oleksandr Serdiuk |  UKR | ARC | Olympics | 2004—2008 | 1–0–1 2003 Daegu ARC bronze: recurve; 2005 İzmir ARC gold: recurve team | 
| Vilija Sereikaitė |  LTU | CTR | Olympics | 2008 | 1–0–0 2011 Shenzhen CYC gold: 3000 m individual pursuit | 
| Yury Sergiyenko |  UKR  EUN | ATH | Olympics | 1992 | 0–0–1 1991 Sheffield ATH bronze: high jump | 
| Lucio Serrani |  ITA | ATH | Olympics | 1984—1988 | 0–1–1 1985 Kobe ATH silver: hammer throw; 1987 Zagreb ATH bronze: hammer throw | 
| Antonio Serrano |  ESP | ATH | Olympics | 1988—1992 | 1–0–2 1989 Duisburg ATH bronze: 5000 m and 10000 m; 1993 Buffalo ATH gold: 10000 m | 
| Eva Serrano |  FRA | GRY | Olympics / Referee | 1996—2020 | 1–0–1 1997 Catania RGY gold: hoop, bronze: rope | 
| Daiya Seto |  JPN | SWM | Olympics | 2016—2020 | 2–2–0 2017 Taipei SWI gold: 400 m medley and 4×200 m freestyle relay (swam in heats only), silver: 200 m butterfly and 200 m medley | 
| Namiq Sevdiyev |  AZE | WRE | Olympics | 2008 | 0–0–1 2005 İzmir WRE bronze: freestyle featherweight -55 kg | 
| Konstantin Shabanov |  RUS | ATH | Olympics | 2012 | 0–2–0 2013 Kazan ATH silver: 110 m hurdles; 2015 Gwangju ATH silver: 110 m hurdles | 
| Andrey Shabasov |  RUS | SWM | Olympics | 2016 | 1–1–1 2015 Gwangju SWI gold: 4×100 m medley relay, bronze: 200 m backstroke; 2017 Taipei SWI silver: 4×100 m medley relay (swam in heats only) | 
| Albina Shakirova |  RUS | SHO | Olympics | 2016 | 1–0–2 2007 Bangkok SHO bronze: skeet team; 2013 Kazan gold: skeet team, bronze: skeet | 
| Nataliya Shalagina |  RUS | SWM | Olympics | 2004 | 0–0–1 2003 Daegu SWI bronze: 4×200 m freestyle relay | 
| Dobrinka Shalamanova |  BUL | ATH | Olympics | 2008 | 1–0–0 2007 Bangkok ATH gold: 3000 m steeplechase | 
| Marina Shamal |  RUS  URS | SWM | Olympics | 1960 | 0–0–1 1965 Budapest SWI bronze: 4×100 m freestyle relay (competed as Marina Luzhkovskaya) | 
| Shan Tao |  CHN | BKB | Olympics | 1992—1996 | 0–0–1 1993 Buffalo BAS bronze | 
| Aida Shanayeva |  RUS | FEN | Olympics | 2008—2016 | 0–0–1 2005 İzmir FEN bronze: foil team | 
| Eric Shanteau |  USA | SWM | Olympics | 2008—2012 | 2–1–0 2003 Daegu SWI silver: 400 m medley; 2005 İzmir SWI gold: 200 m medley and 400 m medley | 
| Leonid Shaposhnykov |  UKR  EUN | ROW | Olympics | 1992—2004 | 2–0–0 1989 Duisburg ROW gold: double sculls (competed for the Soviet Union); 1993 Buffalo ROW gold: quadruple sculls (competed for Ukraine) |