The Women's 100 metre butterfly competition of the 2016 European Aquatics Championships was held on 19 May 2016.

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

The heats were held on 19 May at 10:41.

[3] The semifinals were held on 19 May at 18:30.

[4] The final was held on 20 May at 19:18.