Swimming at the 2017 World Aquatics Championships – Women's 1500 metre freestyle
The Women's 1500 metre freestyle competition at the 2017 World Championships was held on 24 and 25 July 2017.Records
Prior to the competition, the existing world and championship records were as follows.Results
Heats
The heats were held on 24 July at 10:48.
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | 4 | | | 15:47.54 | Q |
| 2 | 3 | 5 | | | 16:05.37 | Q |
| 3 | 2 | 6 | Hou Yawen | | 16:05.87 | Q |
| 4 | 2 | 5 | | | 16:07.08 | Q |
| 5 | 2 | 4 | | | 16:09.60 | Q |
| 6 | 3 | 6 | | | 16:17.28 | Q |
| 7 | 3 | 1 | | | 16:19.16 | Q, NR |
| 8 | 2 | 3 | | | 16:20.98 | Q |
| 9 | 3 | 2 | | | 16:21.45 | |
| 10 | 3 | 7 | | | 16:24.05 | |
| 11 | 3 | 8 | | | 16:25.78 | |
| 12 | 2 | 7 | | | 16:25.99 | |
| 13 | 2 | 1 | | | 16:32.45 | |
| 14 | 2 | 8 | | | 16:34.50 | |
| 15 | 3 | 3 | | | 16:34.86 | |
| 16 | 2 | 2 | Chen Yejie | | 16:53.74 | |
| 17 | 2 | 0 | | | 17:01.85 | |
| 18 | 3 | 0 | | | 17:04.63 | |
| 19 | 1 | 3 | | | 17:15.04 | |
| 20 | 1 | 5 | Ho Nam Wai | | 17:17.64 | |
| 21 | 1 | 4 | | | 17:22.42 | |
| 22 | 3 | 9 | | | 17:25.00 | |
Final
The final was held on 25 July at 17:40.
| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | Katie Ledecky | | 15:31.82 | |
| 5 | Mireia Belmonte | | 15:50.89 | NR |
| 6 | Simona Quadarella | | 15:53.86 | |
| 4 | 2 | Boglárka Kapás | | 16:06.27 | |
| 5 | 3 | Hou Yawen | | 16:08.10 | |
| 6 | 7 | Kristel Köbrich | | 16:13.46 | |
| 7 | 1 | Julia Hassler | | 16:14.86 | NR |
| 8 | 8 | Ajna Késely | | 16:22.87 | |
