Swimming at the 2011 World Aquatics Championships – Men's 200 metre butterfly

The men's 200 metre butterfly competition of the swimming events at the 2011 World Aquatics Championships was held on July 26 with the heats and the semifinals and July 27 with the final.

Records
Prior to the competition, the existing world and championship records were as follows.

Heats
40 athletes participated in 5 heats.

Semifinals
The semifinals were held at 19.35.

Final
The final was held at 18:22.