| Event: | Women's 10 km |
| Championship: | 2009 World Aquatics Championships |
| Dates: | 22 July |
| Location: | Rome |
| Competitors: | 45 |
| Nations: | 26 |
| Prev: | 2007 |
| Next: | 2011 |
See main article: article and Open Water Swimming at the 2009 World Aquatics Championships.
The women's 10K (10 kilometer) race at the 2009 World Championships occurred on Wednesday, 22 July at Ostia Beach in Rome, Italy. In total, 45 women from 26 countries competed in the race.
| Rank | Swimmer | Nationality | Time | |
|---|---|---|---|---|
 Great Britain | 2:01:37.1 | |||
| 2:01:38.0 | ||||
| 2:01:38.6 | ||||
| 4 | 2:01:40.8 | |||
| 5 | 2:01:40.9 | |||
| 6 | 2:01:41.0 | |||
| 7 | 2:01:41.5 | |||
| 8 | 2:01:45.6 | |||
| 9 | 2:01:45.7 | |||
| 10 | 2:01:50.2 | |||
| 11 | 2:01:58.9 | |||
| 12 | 2:02:00.3 | |||
| 13 | 2:02:01.0 | |||
| 14 | 2:02:03.1 | |||
| 15 | 2:02:04.0 | |||
| 16 | 2:02:04.0 | |||
| 17 | 2:02:04.4 | |||
| 18 | 2:02:04.5 | |||
| 18 | 2:02:04.5 | |||
| 20 | 2:02:04.6 | |||
| 21 | 2:02:05.9 | |||
| 22 | 2:02:06.4 | |||
| 23 | 2:02:06.5 | |||
| 24 | 2:02:06.6 | |||
| 25 | 2:02:06.7 | |||
| 26 | 2:02:07.1 | |||
| 27 | 2:02:09.9 | |||
| 28 | 2:02:10.1 | |||
| 29 | 2:02:16.0 | |||
| 30 | 2:02:20.3 | |||
| 31 | 2:02:22.1 | |||
| 32 | 2:02:22.9 | |||
| 33 | 2:02:24.3 | |||
| 34 | 2:02:28.3 | |||
| 35 | Great Britain | 2:02:37.7 | ||
| 36 | 2:02:55.4 | |||
| 37 | 2:03:16.8 | |||
| 38 | 2:06:22.5 | |||
| 39 | 2:06:26.9 | |||
| 40 | 2:09:15.4 | |||
| 41 | 2:09:23.7 | |||
| 42 | 2:12:07.9 | |||
| 43 | 2:26:09.1 | |||
| -- | DNF | |||
| -- | DNF |
Key: DNF = Did not finish