Swimming at the 2014 European Aquatics Championships – Men's 100 metre butterfly

The Men's 100 metre butterfly competition of the 2014 European Aquatics Championships was held on 22–23 August.

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

Heats
The heats were held at 10:00.

Semifinals
The semifinals were held at 18:28.

Swim-off
The swim-off was held at 19:55.

Final
The final was held at 16:27.