The men's 200 metre butterfly competition at the 2023 World Aquatics Championships was held on 25 and 26 July 2023.

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

[4] The heats were started on 25 July at 11:13.

[5] The semifinals were held on 25 July at 21:33.

[6] The final was held on 26 July at 20:53.