Athletics at the 2019 Summer Universiade – Men's 400 metres hurdles

The men's 400 metres hurdles event at the 2019 Summer Universiade was held on 9, 10 and 11 July at the Stadio San Paolo in Naples.

Heats
Qualification: First 3 in each heat (Q) and next 4 fastest (q) qualified for the semifinals.

Semifinals
Qualification: First 3 in each heat (Q) and next 2 fastest (q) qualified for the final.