2012 European Athletics Championships – Women's 400 metres hurdles

The women's 400 metres hurdles at the 2012 European Athletics Championships was held at the Helsinki Olympic Stadium on 27, 28 and 29 June.

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

Semifinals
First 3 in each heat (Q) and 2 best performers (q) advance to the Final.