Athletics at the 2007 Summer Universiade – Women's 400 metres

The women's 400 metres event at the 2007 Summer Universiade was held on 9–11 August.

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 qualified directly (Q) for the final.