Swimming at the 2011 World Aquatics Championships – Women's 4 × 100 metre freestyle relay

The women's 4×100 metre freestyle relay competition of the swimming events at the 2011 World Aquatics Championships took place July 24. The heats and final took place July 24.

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

Heats
14 teams participated in 2 heats, qualified teams are listed:

Final
The final was held at 19:10.