The Men's 50 metre breaststroke competition at the 2019 World Championships was held on 23 and 24 July 2019.

[1][2] Prior to the competition, the existing world and championship records were as follows.

The heats were held on 23 July at 10:00.

[3] The semifinals were held on 23 July at 20:41.

[4] The swim-off was held on 23 July at 22:02.