2002 European Athletics Championships – Men's 400 metres

The men's 400 metres at the 2002 European Athletics Championships were held at the Olympic Stadium on August 6–8.

Heats
Qualification: First 3 of each heat (Q) and the next 4 fastest (q) qualified for the semifinals.

Semifinals
Qualification: First 4 of each semifinal (Q) qualified directly for the final.