2010 European Athletics Championships – Men's 400 metres hurdles

The men's 400 metres hurdles at the 2010 European Athletics Championships was held at the Estadi Olímpic Lluís Companys on 28, 29 and 31 July.

Round 1
First 3 in each heat (Q) and 4 best performers (q) advance to the Semifinals.

Semifinals
First 3 in each heat and 2 best performers advance to the Final.