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.
Belgian athletes have so far achieved qualifying standards in the following athletics events (up to a maximum of 3 athletes in each event at the 'A' Standard, and 1 at the 'B' Standard).
<small>Qualification Legend: Q = Qualify to final; q = Qualify to semifinal</small>
<small>"#" 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.</small>
<small>Qualification Legend: FA=Final A (medal); FB=Final B (non-medal); FC=Final C (non-medal); FD=Final D (non-medal); FE=Final E (non-medal); FF=Final F (non-medal); SA/B=Semifinals A/B; SC/D=Semifinals C/D; SE/F=Semifinals E/F; R=Repechage</small>
<small>M = Medal race; OCS = On course side of the starting line; DSQ = Disqualified; DNF = Did not finish; DNS= Did not start; RDG = Redress given</small>
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.