Athletics at the 2011 Summer Universiade – Women's 400 metres

The women's 400 metres event at the 2011 Summer Universiade was held on 11–13 August.

Medalists
Note: Olga Tereshkova originally finished third but was later caught doping and her results were cancelled.

Heats
Qualification: First 4 in each heat and 4 best performers advance to the Semifinals.

Semifinals
Qualification: First 2 of each semifinal (Q) and the next 2 fastest (q) qualified for the final.