Competitors for 2003 Swim World Cup
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Jessica Abbott |  AUS |
SWI | 22 July 1985 |
| Therèse Alshammar |  SWE |
SWI | 26 August 1977 |
| Mitchell Bacon | AUS |
SWI | 1 June 1983 |
| Zoë Baker |  ENG GBR NZL |
SWI | 29 February 1976 |
| Lindsay Benko |  USA |
SWI | 29 November 1976 |
| Gustavo Borges |  BRA |
SWI | 2 December 1972 |
| Dyana Calub | AUS |
SWI | 28 November 1975 |
| Chad Carvin | USA |
SWI | 13 April 1974 |
| Aaron Ciarla | USA |
SWI | 1978 |
| Lara Davenport | AUS |
SWI | 22 December 1983 |
| David Denniston | USA |
SWI | 1978 |
| Michelle Engelsman | AUS |
SWI | 9 December 1979 |
| Shane Fielding | AUS |
SWI | 1981 |
| Mark Foster | ENG GBR |
SWI | 12 May 1970 |
| Felicity Galvez | AUS |
SWI | 4 March 1985 |
| Elka Graham | AUS |
SWI | 20 October 1981 |
| Grant Hackett | AUS |
OWS/SWI | 9 May 1980 |
| Brooke Hanson | AUS |
SWI | 18 March 1978 |
| Toni Helbig |  GER |
SWI | 1982 |
| Pieter van den Hoogenband |  NED |
SWI | 14 March 1978 |
| Emma Igelström | SWE |
SWI | 6 March 1980 |
| Leisel Jones | AUS |
SWI | 30 August 1985 |
| Rachel Komisarz | USA |
SWI | 5 December 1976 |
| Libby Lenton-Trickett | AUS |
SWI | 28 January 1985 |
| Batiste Levaillant |  FRA |
SWI | 10 April 1980 |
| Adam Lucas | AUS |
SWI | 27 October 1983 |
| Igor Marchenko |  RUS |
SWI | 26 November 1975 |
| Justin Norris | AUS |
SWI | 3 June 1980 |
| Steve Parry | ENG GBR |
SWI | 2 March 1977 |
| Keri-Anne Payne | ENG GBR |
OWS/SWI | 9 December 1987 |
| Stephen Penfold | AUS |
OWS/SWI | 7 April 1982 |
| Brett Petersen |  RSA |
SWI | 9 September 1976 |
| Denis Pimankov | RUS |
SWI | 4 February 1975 |
| Adam Pine | AUS |
SWI | 28 February 1976 |
| Jim Piper | AUS |
SWI | 13 August 1981 |
| Stephanie Proud | GBR |
SWI | 29 August 1988 |
| Jennifer Reilly | AUS |
SWI | 6 July 1983 |
| Brenton Rickard | AUS |
SWI | 19 October 1983 |
| Ethan Rolff | AUS |
SWI | 11 April 1982 |
| Giaan Rooney | AUS |
SWI | 15 November 1982 |
| Massi Rosolino |  ITA |
SWI | 11 July 1978 |
| Thomas Rupprath | GER |
SWI | 16 March 1977 |
| Jess Schipper | AUS |
SWI | 19 November 1986 |
| Hinkelien Schreuder | NED |
SWI | 13 February 1984 |
| Courtney Shealy | USA |
SWI | 12 December 1977 |
| Roman Sludnov | RUS |
SWI | 24 February 1980 |
| Craig Stevens | AUS |
SWI | 23 July 1980 |
| Josh Taylor | AUS |
SWI | 1983 |
| Kirsten Thomson | AUS |
SWI | 27 September 1983 |
| Kelly Tucker | AUS |
SWI | 27 March 1985 |
| Rob Van der Zant | AUS |
SWI | 2 February 1975 |
| Matt Welsh | AUS |
SWI | 18 November 1976 |
| Belinda Wilson | AUS |
SWI | 1984 |
| Charlene Wittstock | RSA |
SWI | 25 January 1978 |
| Zhang Tianyi |  CHN |
SWI | 24 April 1990 |
| Klaas-Erik Zwering | NED |
SWI | 19 May 1981 |