Athletics at the 2024 Summer Olympics – Men's 400 metres hurdles

The men's 400 metres hurdles at the 2024 Summer Olympics is scheduled to be held in four rounds at the Stade de France in Paris, France, from 5 to 9 August 2024. This will be 28th time that the men's 400 metres hurdles is contested at the Summer Olympics. A total of 40 athletes will be able to qualify for the event by entry standard or ranking.

Background
The men's 400 m hurdles has been present on the Olympic athletics programme since 1900, with a sole gap at the 1912 Summer Olympics.

Qualification
For the men's 400 metres hurdles event, the qualification period is between 1 July 2023 and 30 June 2024. Forty athletes are able to qualify for the event, with a maximum of three athletes per nation, by running the entry standard of 48.70 seconds or faster or by their World Athletics Ranking for this event.

Round 1
Round 1 is scheduled to be held on 5 August, starting at 10:05 (UTC+2) in the morning.

Repechage round
The repechage round is scheduled to be held on 6 August, starting at 12:00 (UTC+2) in the afternoon.

Semi-finals
The semi-finals are scheduled to be held on 7 August, starting at 19:35 (UTC+2) in the evening.

Final
The final is scheduled to be held on 9 August, starting at 21:45 (UTC+2) in the evening.