2003–04 in Belgian football

The 2003–04 season was the 101st competitive season in Belgian football.

National team
Belgium ended their qualifying campaign for the 2004 UEFA European Championship at the third place in Group 8 and thus did not take part to the final tournament.

* Belgium score given first

Key
 * H = Home match
 * A = Away match
 * F = Friendly
 * ECQ = UEFA European Championship 2004 Qualifying, Group 8
 * og = own goal