Swimming at the 2023 World Aquatics Championships – Men's 1500 metre freestyle

The men's 1500 metre freestyle competition at the 2023 World Aquatics Championships was held on 29 and 30 July 2023.

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

The following new records were set during this competition.

Heats
The heats were started on 29 July at 11:52.

Final
The final started on 30 July at 20:16.