Swimming at the 2020 European Aquatics Championships – Women's 4 × 100 metre freestyle relay

The Women's 4 × 100 metre freestyle relay competition of the 2020 European Aquatics Championships was held on 17 May 2021.

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

Heats
The heats were held at 11:34.

Final
The final was held at 19:01.