Athletics at the 2019 African Games – Men's 400 metres

The men's 400 metres event at the 2019 African Games was held on 26, 27 and 28 August in Rabat.

[1] Qualification: First 3 in each heat (Q) and the next 6 fastest (q) advanced to the semifinals.

Qualification: First 2 in each semifinal (Q) and the next 2 fastest (q) advanced to the final.