The Men's 200 metre butterfly competition at the 2017 World Championships was held on 25 and 26 July 2017.

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

The heats were held on 25 July at 10:12.

[3] The semifinals were held on 25 July at 19:04.

[4] The final was held on 26 July at 18:01.