Swimming at the 2024 World Aquatics Championships – Men's 100 metre backstroke

The Men's 100 metre backstroke competition at the 2024 World Aquatics Championships was held on 12 and 13 February 2024.

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

Heats
The heats were started on 12 February at 09:48.

Semifinals
The semifinals were held on 12 February at 19:17.

Final
The final was held on 13 February at 19:59.