Competitors for 2004 Swim World Cup
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Bao Jingtao |  CHN |
SWI | 1983 |
| Paula Baracho |  BRA |
SWI | 31 July 1981 |
| Georgina Bardach |  ARG |
SWI | 18 August 1983 |
| Amanda Beard |  USA |
SWI | 29 October 1981 |
| George Bovell |  TTO |
SWI | 18 July 1983 |
| Cao Xuewei | CHN |
SWI | 1984 |
| Rodrigo Castro | BRA |
SWI | 21 December 1978 |
| Cho A-Ra |  KOR |
SWI | 1987 |
| Dragoș Coman |  ROU |
SWI | 16 October 1980 |
| Flávia Delaroli | BRA |
SWI | 28 December 1983 |
| Johannes Dietrich |  GER |
SWI | 10 February 1985 |
| Hugues Duboscq |  FRA |
SWI | 29 August 1981 |
| Vladimir Dyatchin |  RUS |
OWS/SWI | 14 October 1982 |
| Hanna Eriksson |  SWE |
SWI | 18 September 1984 |
| Gabriella Fagundez | SWE |
SWI | 11 October 1985 |
| Eduardo Fischer | BRA |
SWI | 25 March 1980 |
| Răzvan Florea | ROU |
SWI | 29 September 1980 |
| Mark Gangloff | USA |
SWI | 8 June 1982 |
| Ștefan Gherghel | ROU |
SWI | 18 August 1978 |
| Agustina De Giovanni | ARG |
SWI | 16 July 1985 |
| Daniela Götz | GER |
SWI | 23 December 1987 |
| Rebeca Gusmão | BRA |
SWI | 24 August 1984 |
| Gwon Yu-Ri | KOR |
SWI | 30 July 1989 |
| Sonja Helbig | GER |
SWI | 1987 |
| Aleksander Hetland |  NOR |
SWI | 26 December 1982 |
| BJ Jones | USA |
SWI | 1982 |
| Kaio Márcio | BRA |
SWI | 19 October 1984 |
| Dominik Keil | GER |
SWI | 1985 |
| Christian Keller | GER |
SWI | 3 August 1972 |
| Yana Klochkova |  UKR |
SWI | 7 August 1982 |
| Lee Nam-Eun | KOR |
SWI | 25 March 1989 |
| Mandy Loots |  RSA |
SWI | 3 August 1978 |
| Joanna Maranhão | BRA |
SWI | 29 April 1987 |
| Jenny Mensing | GER |
SWI | 26 February 1986 |
| José Meolans | ARG |
SWI | 22 June 1978 |
| Fabíola Molina | BRA |
SWI | 22 May 1975 |
| Armando Negreiros | BRA |
SWI | 10 September 1985 |
| Simona Păduraru | ROU |
SWI | 24 November 1981 |
| Thiago Pereira | BRA |
SWI | 26 January 1986 |
| Camelia Potec | ROU |
SWI | 19 February 1982 |
| Rogério Romero | BRA |
SWI | 22 November 1969 |
| Lucas Salatta | BRA |
SWI | 27 April 1987 |
| Xuxa Scherer | BRA |
SWI | 6 October 1974 |
| Johanna Sjöberg | SWE |
SWI | 8 March 1978 |
| Jader Souza | BRA |
SWI | 13 March 1982 |
| Marcelo Tomazini | BRA |
SWI | 18 December 1978 |
| Scott Tucker | USA |
SWI | 18 February 1976 |
| Raluca Udroiu | ROU |
SWI | 12 May 1982 |
| Charlene Wittstock | RSA |
SWI | 25 January 1978 |
| Ryan Wochomurka | USA |
SWI | 20 June 1983 |
| Gerhard Zandberg | RSA |
SWI | 23 April 1983 |