The Women's 50 metre backstroke competition of the 2020 European Aquatics Championships will be held on 18 and 19 May 2021.

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

The following new records were set during this competition.

[4] The swim-off was held on 18 May at 20:01.

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