The Men's 200 metre butterfly competition of the swimming events at the 2015 World Aquatics Championships was held on 4 August with the heats and the semifinals and 5 August with the final.

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

The heats were held at 10:15.

[2] The semifinals were held on 4 August at 19:04.

[3] The final was held at 17:52.