The men's 50 metre backstroke competition at the 2023 World Aquatics Championships was held on 29 and 30 July 2023.

[1][2][3] Prior to the competition, the existing world and championship records were as follows.

[4] The heats were started on 29 July at 10:55.

[5] The semifinal was held on 29 July at 21:06.

[6] The final will be held on 30 July at 20:02.