Athletics at the 2019 Summer Universiade – Women's 400 metres

The women's 400 metres event at the 2019 Summer Universiade was held on 8, 9 and 10 July at the Stadio San Paolo in Naples.

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

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