Competitors for 1998 Swim World Cup
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Robert Abernethy |  AUS |
SWI | 1971 |
| Alexandre Angelotti |  BRA |
OWS/SWI | 1975 |
| Gustavo Borges | BRA |
SWI | 2 December 1972 |
| Ellen Borgo | BRA |
SWI | 1978 |
| Ralf Braun |  GDR GER |
SWI | 24 January 1973 |
| Antje Buschschulte | GER |
SWI | 27 December 1978 |
| Daniel Carlsson |  SWE |
SWI | 14 November 1976 |
| Patrícia Comini-Ribeiro | BRA |
SWI | 8 March 1975 |
| André Cordeiro | BRA |
SWI | 15 March 1974 |
| Laura Crespo | BRA |
SWI | 1981 |
| Laura de Azevedo | BRA |
SWI | 1982 |
| Mel Dodd | AUS |
SWI | 10 May 1973 |
| Ricardo Dornelas | BRA |
SWI | 1977 |
| Leon Dunne | AUS |
SWI | 7 March 1975 |
| Juliana Filippini | BRA |
SWI | |
| Han Gyu-Cheol |  KOR |
SWI | 24 December 1981 |
| Yvetta Hlaváčová |  CZE TCH |
OWS/SWI | 26 May 1975 |
| Joris Keizer |  NED |
SWI | 26 January 1979 |
| Bill Kirby | AUS |
SWI | 12 September 1975 |
| Yana Klochkova |  UKR |
SWI | 7 August 1982 |
| Jens Kruppa | GER |
SWI | 3 June 1976 |
| Luiz Lima | BRA |
OWS/SWI | 10 December 1977 |
| Roxana Maracineanu |  FRA |
SWI | 7 May 1975 |
| Alexandre Massura | BRA |
SWI | 19 June 1975 |
| Katrin Meißner | GDR GER |
SWI | 17 January 1973 |
| Steven Mellor |  ENG GBR |
SWI | 11 March 1973 |
| Renata Micheletti | BRA |
SWI | 1979 |
| Ilia Mikhailov | SWE |
SWI | |
| Guadalupe Miret |  ARG |
SWI | |
| Cristiane Nakama | BRA |
SWI | |
| Poliana Okimoto | BRA |
OWS/SWI | 8 March 1983 |
| Simone Osygus | GER |
SWI | 30 September 1968 |
| María Pereyra | ARG |
SWI | 24 January 1978 |
| Claudia Poll |  CRC |
SWI | 21 December 1972 |
| Angela Postma | NED |
SWI | 6 August 1971 |
| Rogério Romero | BRA |
SWI | 22 November 1969 |
| Massi Rosolino |  ITA |
SWI | 11 July 1978 |
| Fernando Saez | BRA |
SWI | 2 October 1974 |
| Xuxa Scherer | BRA |
SWI | 6 October 1974 |
| Luisa Striani | ITA |
SWI | 13 November 1978 |
| Denys Sylantiev | UKR |
SWI | 3 October 1976 |
| Stev Theloke | GER |
SWI | 18 January 1978 |
| Adrian Turner | ENG GBR |
SWI | 21 January 1977 |
| Kirsten Vlieghuis | NED |
SWI | 17 May 1976 |
| Marcel Wouda | NED |
SWI | 23 January 1972 |
| Nataliya Yakovleva | BRA RUS URS |
OWS/SWI | 6 December 1971 |