Swimming at the 2015 World Aquatics Championships – Men's 50 metre breaststroke

The Men's 50 metre breaststroke competition of the swimming events at the 2015 World Aquatics Championships was held with the heats and the semifinals on 4 August 2015 and the final on 5 August 2015.

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 held at 09:30.

Semifinals
The semifinals were held on 4 August at 17:48.

Final
The final was held at 18:10.