| Athlete |
Nation(s) |
Sport(s) |
Role(s) |
Era |
Notes |
| Michael Andrew |
 USA |
SWM |
Olympics |
2020 |
men's 4×100 m medley relay 3:26.78 (2020) |
| Zach Apple |
USA |
SWM |
Olympics |
2020 |
men's 4×100 m medley relay 3:26.78 (2020) |
| Ricky Berens |
USA |
SWM |
Olympics |
2008—2012 |
men's 4×200 m freestyle relay 6:58.56 (2008) |
| Caeleb Dressel |
USA |
SWM |
Olympics |
2016—2024 |
men's 50 m freestyle 21.07 (2020), men's 100 m butterfly 49.45 (2020), and men's 4×100 m medley relay 3:26.78 (2020) |
| Nic Fink |
USA |
SWM |
Olympics |
2020—2024 |
4×100 m medley mixed relay 3:37.43 (2024) |
| Bobby Finke |
USA |
SWM |
Olympics |
2020—2024 |
men's 1500 m freestyle 14:30.67 (2024) |
| Meg Harris |
 AUS |
SWM |
Olympics |
2020—2024 |
women's 4×100 m freestyle relay 3:28.92 (2024) |
| Katinka Hosszú |
 HUN |
SWM |
Olympics / Closing Flagbearer |
2004—2020 |
women's 400 m medley 4:26.36 (2016) |
| Torri Huske |
USA |
SWM |
Olympics |
2020—2024 |
women's 4×100 m medley relay 3:49.63 (2024), and 4×100 m medley mixed relay 3:37.43 (2024) |
| Shayna Jack |
AUS |
SWM |
Olympics |
2024 |
women's 4×100 m freestyle relay 3:28.92 (2024) |
| Cullen Jones |
USA |
SWM |
Olympics |
2008—2012 |
men's 4×100 m freestyle relay 3:08.24 (2008) |
| Lilly King |
USA |
SWM |
Olympics |
2016—2024 |
women's 4×100 m medley relay 3:49.63 (2024) |
| Katie Ledecky |
USA |
SWM |
Olympics / Closing Flagbearer |
2012—2024 |
women's 400 m freestyle 3:56.46 (2016), women's 800 m freestyle 8:04.79 (2016), and women's 1500 m freestyle 15:30.02 (2024) |
| Jason Lezak |
USA |
SWM |
Olympics |
2000—2012 |
men's 4×100 m freestyle relay 3:08.24 (2008) |
| Ryan Lochte |
USA |
SWM |
Olympics |
2004—2016 |
men's 4×200 m freestyle relay 6:58.56 (2008) |
| Léon Marchand |
 FRA |
SWM |
Olympics |
2020—2024 |
men's 200 m breaststroke 2:05.85 (2024), men's 200 m butterfly 1:51.21 (2024), men's 200 m medley 1:54.06 (2024), and men's 400 m medley 4:02.95 (2024) |
| Summer McIntosh |
 CAN |
SWM |
Olympics / Closing Flagbearer |
2020—2024 |
women's 200 m butterfly 2:03.03 (2024), and women's 200 m medley 2:06.56 (2024) |
| Emma McKeon |
AUS |
SWM |
Olympics / YOG |
2010—2024 |
women's 100 m freestyle 51.96 (2020), and women's 4×100 m freestyle relay 3:28.92 (2024) |
| Kaylee McKeown |
AUS |
SWM |
Olympics / YOG / Closing Flagbearer |
2018—2024 |
women's 200 m backstroke 2:03.73 (2024) |
| Ryan Murphy |
USA |
SWM |
Olympics |
2016—2024 |
men's 100 m backstroke 51.85 (2016), men's 4×100 m medley relay 3:26.78 (2020), and 4×100 m medley mixed relay 3:37.43 (2024) |
| Mollie O'Callaghan |
AUS |
SWM |
Olympics |
2020—2024 |
women's 200 m freestyle 1:53.27 (2024), women's 4×100 m freestyle relay 3:28.92 (2024), and women's 4×200 m freestyle relay 7:38:08 (2024) |
| Lani Pallister |
AUS |
SWM |
Olympics |
2024 |
women's 4×200 m freestyle relay 7:38:08 (2024) |
| Pan Zhanle |
 CHN |
SWM |
Olympics |
2024 |
men's 100 m freestyle 46.40 (2024) |
| Adam Peaty |
 GBR |
SWM |
Olympics |
2016—2024 |
men's 100 m breaststroke 57.13 (2016) |
| Michael Phelps |
USA |
SWM |
Olympics / Opening Flagbearer |
2000—2016 |
men's 200 m freestyle 1:42.96 (2008), men's 4×100 m freestyle relay 3:08.24 (2008), and men's 4×200 m freestyle relay 6:58.56 (2008) |
| Yevgeny Rylov |
 ROC
 RUS |
SWM |
Olympics / YOG |
2014—2020 |
men's 200 m backstroke 1:53.27 (2020) |
| Tatjana Schoenmaker-Smith |
 RSA |
SWM |
Olympics / Closing Flagbearer |
2020—2024 |
women's 100 m breaststroke 1:04.82 (2020), and women's 200 m breaststroke 2:18.95 (2020) |
| Sarah Sjöström |
 SWE |
SWM |
Olympics |
2008—2024 |
women's 50 m freestyle 23.66 (2024) |
| Regan Smith |
USA |
SWM |
Olympics |
2020—2024 |
women's 100 m backstroke 57.28 (2024), and women's 4×100 m medley relay 3:49.63 (2024) |
| Sun Yang |
CHN |
SWM |
Olympics |
2008—2016 |
men's 400 m freestyle 3:40.14 (2012) |
| Brianna Throssell |
AUS |
SWM |
Olympics / YOG |
2014—2024 |
women's 4×200 m freestyle relay 7:38:08 (2024) |
| Ariarne Titmus |
AUS |
SWM |
Olympics |
2020—2024 |
women's 4×200 m freestyle relay 7:38:08 (2024) |
| Peter Vanderkaay |
USA |
SWM |
Olympics |
2004—2012 |
men's 4×200 m freestyle relay 6:58.56 (2008) |
| Gretchen Walsh |
USA |
SWM |
Olympics |
2024 |
women's 100 m butterfly 55.38 (2024), women's 4×100 m medley relay 3:49.63 (2024), and 4×100 m medley mixed relay 3:37.43 (2024) |
| Garrett Weber-Gale |
USA |
SWM |
Olympics |
2008 |
men's 4×100 m freestyle relay 3:08.24 (2008) |
| Daniel Wiffen |
 IRL |
OWS/SWM |
Olympics / Closing Flagbearer |
2020—2024 |
men's 800 m freestyle 7:38.19 (2024) |