![Swimming at the 2023 World Aquatics Championships – Women's 100 metre butterfly Swimming at the 2023 World Aquatics Championships – Women's 100 metre butterfly](/modules/owlapps_apps/img/nopic.jpg)
The women's 100 metre butterfly competition at the 2023 World Aquatics Championships was held on 23 and 24 July 2023.
Prior to the competition, the existing world and championship records were as follows.
The heats were started on 23 July at 11:21.
The semifinals were started on 23 July at 20:12.
The final was held on 24 July at 20:09.
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