Swimming at the 2023 World Aquatics Championships – Women's 50 metre breaststroke

The women's 50 metre breaststroke competition at the 2023 World Aquatics Championships was held on 29 and 30 July 2023.

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

The following new records were set during this competition.

Heats
The heats were started on 29 July at 11:10.

Semifinals
The semifinals were held on 29 July at 20:26.

Swim-off
The swim-off for the first replacement was held on 29 July at 22:13.

Final
The final started on 30 July at 20:09.