Fastest swim short course 400 metres freestyle (female)
- Who
- Summer McIntosh
- What
- 3:50.25 minute(s):second(s)
- Where
- Hungary (Budapest)
- When
- 10 December 2024
The fastest swim short course 400 metres freestyle (female) is 3 minutes 50.25 seconds, achieved by Summer McIntosh (Canada) in Budapest, Hungary, on 10 December 2024.
McIntosh also set world records in the 200 m butterfly and 400 m individual medley at the World Aquatics Swimming Championships (25m) 2024 in Budapest.