| Athlete |
Nation(s) |
Sport(s) |
Role(s) |
Era |
Notes |
| Becky Adlington |
 GBR |
SWM |
Olympics |
2008—2012 |
2008 Distance Freestyle Double Champion (400/800). |
| Alex Baumann |
 CAN |
SWM |
Olympics / Other |
1984 |
1984 200/400 Individual Medley Double Champion. |
| Melissa Belote |
 USA |
SWM |
Olympics |
1972—1976 |
1972 100/200 Backstroke Champion. |
| Brooke Bennett |
USA |
SWM |
Olympics |
1996—2000 |
2000 Distance Freestyle Double Champion (400/800). |
| Matt Biondi |
USA |
SWM |
Olympics |
1984—1992 |
1988 50/100 Freestyle Sprint Double Champion. |
| Inge de Bruijn |
 NED |
SWM |
Olympics / Other |
1992—2004 |
2000 50/100 Freestyle Sprint Double Champion. |
| Mike Burton |
USA |
SWM |
Olympics / Other |
1968—1972 |
1968 Distance Freestyle Double Champion (400/1500). |
| Rick Carey |
USA |
SWM |
Olympics |
1984 |
1984 100/200 Backstroke Champion. |
| Tracy Caulkins |
USA |
SWM |
Olympics |
1984 |
1984 200/400 Individual Medley Double Champion. |
| Tiffany Cohen |
USA |
SWM |
Olympics |
1984 |
1984 Distance Freestyle Double Champion (400/800). |
| Tamás Darnyi |
 HUN |
SWM |
Olympics |
1988—1992 |
1988 / 1992 200/400 Individual Medley Double Champion. |
| Krisztina Egerszegi |
HUN |
SWM |
Olympics |
1988—1996 |
1992 100/200 Backstroke Champion. |
| Kornelia Ender |
 GDR |
SWM |
Olympics |
1972—1976 |
1976 100/200 Freestyle Champion. |
| Janet Evans |
USA |
SWM |
Olympics |
1988—1996 |
1988 Distance Freestyle Double Champion (400/800). |
| Domenico Fioravanti |
 ITA |
SWM |
Olympics |
2000 |
2000 100/200 Breaststroke Champion. |
| Brian Goodell |
USA |
SWM |
Olympics |
1976 |
1976 Distance Freestyle Double Champion (400/1500). |
| Penny Heyns |
 RSA |
SWM |
Olympics |
1992—2000 |
1996 100/200 Breaststroke Champion. |
| Charlie Hickcox |
USA |
SWM |
Olympics |
1968 |
1968 200/400 Individual Medley Double Champion. |
| George Hodgson |
CAN |
SWM |
Olympics |
1912—1920 |
1912 Distance Freestyle Double Champion (400/1500). |
| Pieter van den Hoogenband |
NED |
SWM |
Olympics |
1996—2008 |
2000 100/200 Freestyle Champion. |
| Kosuke Kitajima |
 JPN |
SWM |
Olympics / Other |
2000—2012 |
2004 / 2008 100/200 Breaststroke Champion. |
| Yana Klochkova |
 UKR |
SWM |
Olympics / Other |
2000—2008 |
2000 / 2004 200/400 Individual Medley Double Champion. |
| Claudia Kolb |
USA |
SWM |
Olympics |
1964—1968 |
1968 200/400 Individual Medley Double Champion. |
| Barbara Krause |
GDR |
SWM |
Olympics |
1980 |
1980 100/200 Freestyle Champion. |
| Lenny Krayzelburg |
USA |
SWM |
Olympics |
2000—2004 |
2000 100/200 Backstroke Champion. |
| Gunnar Larsson |
 SWE |
SWM |
Olympics |
1968—1972 |
1972 200/400 Individual Medley Double Champion. |
| Roland Matthes |
GDR |
SWM |
Olympics |
1968—1976 |
1968 / 1972 100/200 Backstroke Champion. |
| Mary T. Meagher |
USA |
SWM |
Olympics |
1984—1988 |
1984 100/200 Butterfly Champion. |
| Debbie Meyer |
USA |
SWM |
Olympics |
1968 |
1968 Distance Freestyle Double Champion (400/800). |
| Diana Mocanu |
 ROU |
SWM |
Olympics |
2000 |
2000 100/200 Backstroke Champion. |
| John Naber |
USA |
SWM |
Olympics |
1976 |
1976 100/200 Backstroke Champion. |
| Kristin Otto |
GDR |
SWM |
Olympics |
1988 |
1988 50/100 Freestyle Sprint Double Champion. |
| Denis Pankratov |
 RUS
 EUN |
SWM |
Olympics |
1992—2000 |
1996 100/200 Butterfly Champion. |
| Aaron Peirsol |
USA |
SWM |
Olympics |
2000—2008 |
2004 100/200 Backstroke Champion. |
| Michael Phelps |
USA |
SWM |
Olympics / Other |
2000—2016 |
2004 / 2008 100/200 Butterfly Champion. |
| Michael Phelps |
USA |
SWM |
Olympics / Other |
2000—2016 |
2004 / 2008 200/400 Individual Medley Double Champion. |
| Aleksandr Popov |
RUS
EUN |
SWM |
Olympics / Other / Administrator |
1992—2016 |
1992 / 1996 50/100 Freestyle Sprint Double Champion. |
| Rica Reinisch |
GDR |
SWM |
Olympics |
1980 |
1980 100/200 Backstroke Champion. |
| Steph Rice |
 AUS |
SWM |
Olympics / Other |
2008—2012 |
2008 200/400 Individual Medley Double Champion. |
| Ulrike Richter |
GDR |
SWM |
Olympics |
1976 |
1976 100/200 Backstroke Champion. |
| Murray Rose |
AUS |
SWM |
Olympics |
1956—1960 |
1956 Distance Freestyle Double Champion (400/1500). |
| Norman Ross |
USA |
SWM/WPO |
Olympics |
1920 |
1920 Distance Freestyle Double Champion (400/1500). |
| Vladimir Salnikov |
RUS
 URS |
SWM |
Olympics |
1976—1988 |
1980 Distance Freestyle Double Champion (400/1500). |
| Michelle Smith |
 IRL |
SWM |
Olympics / Other |
1988—1996 |
1996 200/400 Individual Medley Double Champion. |
| Mark Spitz |
USA |
SWM |
Olympics |
1968—1972 |
1972 100/200 Freestyle Champion and 100/200 Butterfly Champion. |
| Britta Steffen |
 GER |
SWM |
Olympics |
2000—2012 |
2008 50/100 Freestyle Sprint Double Champion. |
| Henry Taylor |
GBR |
SWM |
Olympics / 1906 |
1906—1920 |
1908 Distance Freestyle Double Champion (400/1500). |
| Petra Thümer |
GDR |
SWM |
Olympics |
1976 |
1976 Distance Freestyle Double Champion (400/800). |
| Mike Wenden |
AUS |
SWM |
Olympics / Other |
1968—1972 |
1968 100/200 Freestyle Champion. |