Swimming at the 2015 World Aquatics Championships – Women's 50 metre backstroke

The Women's 50 metre backstroke competition of the swimming events at the 2015 World Aquatics Championships was held on 5 August with the heats and the semifinals and 6 August with the final.

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

Heats
The heats were held on 5 August at 09:30.

Semifinals
The semifinals were held at 17:42.

Final
The final was held at 18:49.