Swimming at the 2022 World Aquatics Championships – Men's 100 metre butterfly

The Men's 100 metre butterfly competition at the 2022 World Aquatics Championships was held on 23 and 24 June 2022.

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

Heats
The heats were started on 23 June at 09:00.

Semifinals
The semifinals were started on 23 June at 18:10.

Final
The Final was held on 24 June at 18:44.