The Men's 50 metre backstroke competition at the 2019 World Championships was held on 27 and 28 July 2019.

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

The heats were held on 27 July at 10:23.

[3] The semifinals were started on 27 July at 21:08.

[4] The final was held on 28 July at 20:02.