2022 FINA World Swimming Championships (25 m) – Men's 400 metre individual medley

The Men's 400 metre individual medley competition of the 2022 FINA World Swimming Championships (25 m) was held on 17 December 2022.

Records
Prior to the competition, the existing world and championship records were as follows.

Heats
The heats were started at 11:47.

Final
The final was held at 20:50.