The women's 400m freestyle events at the 2023 World Para Swimming Championships will be held at the Manchester Aquatics Centre between 31 July and 6 August.
A straight final was held on the evening of 1 August.
Heats and final were both held in Monday 31 July.
[2] Entering the event, the applicable records were the following
[4] Entering the event, the applicable records were the following Aurélie Rivard withdrew from the final and was replaced by Gabriella Smith