Belgium at the 2004 Summer Olympics
Belgium competed at the 2004 Summer Olympics in Athens, Greece. 50 competitors, 31 men and 19 women, took part in 41 events in 14 sports.
Medalists
| Medal | Name | Sport | Event | Date |
| Tennis | Women's singles | |||
| Cycling | Men's road race | |||
| Judo | Women's 52 kg |
Athletics
Belgian athletes have so far achieved qualifying standards in the following athletics events.;Key
- Note-Ranks given for track events are within the athlete's heat only
- Q = Qualified for the next round
- q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
- NR = National record
- N/A = Round not applicable for the event
- Bye = Athlete not required to compete in round
;Track & road events
;Women
;Track & road events
;Field events
Canoeing
Sprint
Qualification Legend: Q = Qualify to final; q = Qualify to semifinalCycling
Road
;Men;Women
| Athlete | Event | Time | Rank |
| Sharon Vandromme | Road race | 3:25:42 | 21 |
Track
;Omnium| Athlete | Event | Points | Laps | Rank |
| Matthew Gilmore | Men's points race | 7 | 0 | 18 |
| Matthew Gilmore Iljo Keisse | Men's madison | 3 | −1 | 11 |
Mountain biking
Equestrian
Eventing
"#" indicates that the score of this rider does not count in the team competition, since only the best three results of a team are counted.Show jumping
Fencing
;MenGymnastics
Artistic
;WomenJudo
;WomenRowing
;MenQualification Legend: FA=Final A ; FB=Final B ; FC=Final C ; FD=Final D ; FE=Final E ; FF=Final F ; SA/B=Semifinals A/B; SC/D=Semifinals C/D; SE/F=Semifinals E/F; R=Repechage
Sailing
;Men;Women
;Open
M = Medal race; OCS = On course side of the starting line; DSQ = Disqualified; DNF = Did not finish; DNS= Did not start; RDG = Redress given
Shooting
;WomenTable tennis
Taekwondo
Tennis
Triathlon
The same two women competed for Belgium that did four years earlier. Both did better in 2004 than they had in the first competition, with Kathleen Smet missing a medal by only 27 seconds.| Athlete | Event | Swim | Trans 1 | Bike | Trans 2 | Run | Total Time | Rank |
| Kathleen Smet | Women's | 19:42 | 0:21 | 1:09:25 | 0:23 | 36:28 | 2:05:35.89 | 4 |
| Mieke Suys | Women's | 20:26 | 0:20 | 1:09:59 | 0:22 | 38:47 | 2:09:12.57 | 22 |