Athletics at the 2003 All-Africa Games – Men's 400 metres hurdles

The men's 400 metres hurdles at the 2003 All-Africa Games were held on October 13–14.

Heats
Qualification: First 3 of each heat (Q) and the next 2 fastest (q) qualified for the semifinal.

Wind: Heat 1: -0.2 m/s, Heat 2: -0.2 m/s