Swimming at the 2023 World Aquatics Championships – Men's 4 × 100 metre freestyle relay

The men's 4 × 100 metre freestyle relay competition at the 2023 World Aquatics Championships will be held on 23 July 2023.

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

Heats
The heats were held at 13:14.

Final
The final was held at 21:43.