Competitors for 2004 World Junior Track Cycling Championships
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Skye-Lee Armstrong |  AUS |
CYC | 1 January 1987 |
| Marcel Barth |  GER |
CYC | 22 May 1986 |
| Aleksey Bauer |  RUS |
CYC | 25 May 1986 |
| Jérémy Besson |  FRA |
CYC | 13 May 1986 |
| Marlijn Binnendijk |  NED |
CYC | 5 December 1986 |
| Michael Blatchford |  USA |
CYC | 29 January 1986 |
| David-Alexandre Cabrol | FRA |
CYC | |
| Choe Sun-Ae |  KOR |
CYC | |
| Simon Clarke | AUS |
CYC | 18 July 1986 |
| Annalisa Cucinotta |  ITA |
CYC | 4 March 1986 |
| Sascha Damrow | GER |
CYC | 10 June 1986 |
| Michael Ford | AUS |
CYC | 23 April 1986 |
| Robert Förstemann | GER |
CYC | 5 March 1986 |
| Gan Don-Jin | KOR |
CYC | |
| Kimberly Geist | USA |
CYC | 29 April 1987 |
| Jane Gerisch | GER |
CYC | 5 March 1986 |
| Florence Girardet | FRA |
CYC | 12 June 1986 |
| Matt Goss | AUS |
CYC | 5 November 1986 |
| Patrick Gretsch | GER |
CYC | 7 April 1987 |
| Guo Shuang |  CHN |
CYC | 26 February 1986 |
| Matthias Hahn | GER |
CYC | 18 March 1986 |
| Corey Heath | AUS |
CYC | 10 May 1986 |
| Francesco Kanda | ITA |
CYC | |
| Andrey Klyuyev | RUS |
CYC | 13 June 1987 |
| Sergey Kolesnikov | RUS |
CYC | 3 September 1986 |
| Ivan Kovalyov | RUS |
CYC | 26 July 1986 |
| Maximilian Levy | GER |
CYC | 26 June 1987 |
| Jarmila Machačová |  CZE |
CYC | 9 January 1986 |
| Luis Mansilla |  CHI |
CYC | 26 July 1986 |
| Tim Mertens |  BEL |
CYC | 7 February 1986 |
| Miles Olman | AUS |
CYC | 23 February 1986 |
| Yu Onishi |  JPN |
CYC | |
| Shane Perkins | AUS RUS |
CYC | 30 December 1986 |
| Alexandr Pliuschin |  MDA |
CYC | 13 January 1987 |
| Tim Roels | BEL |
CYC | 8 August 1986 |
| Bianca Rogers | AUS |
CYC | 27 April 1987 |
| Stefan Schäfer | GER |
CYC | 6 January 1986 |
| Atsushi Shibasaki | JPN |
CYC | |
| Amanda Spratt | AUS |
CYC | 17 September 1987 |
| Kazumichi Sugata | JPN |
CYC | |
| Geraint Thomas |  GBR WAL |
CYC | 25 May 1986 |
| Daniel Thorsen | AUS |
CYC | 26 November 1986 |
| Miriam Welte | GER |
CYC | 9 December 1986 |
| Benjamin Wittmann | GER |
CYC | 2 April 1987 |
| Yu Jin-A | KOR |
CYC | 18 April 1986 |
| Tuanua Zahn | FRA |
CYC | 2 January 1986 |