The Women's 50 metre butterfly competition of the 2018 European Aquatics Championships was held on 8 and 9 August 2018[1][2] in Tollcross International Swimming Centre, Glasgow, Scotland.

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

The heats were started on 8 August at 09:26.

[4] The semifinals were started on 8 August at 17:10.

[5] The final was started on 9 August at 16:45.