# Swimming at the 2007 World Aquatics Championships – Women's 800 metre freestyle

The Women's 800m Freestyle at the 2007 World Aquatics Championships took place on the morning of 30 March (prelims) and the evening of 31 March (finals) at the Rod Laver Arena in Melbourne, Australia.
The existing records when the event started were:
* World Record (WR): 8:16.22, Janet Evans (USA), 20 August 1989 in Tokyo, Japan.
* Championship Record (CR): 8:23.66, Hannah Stockbauer (Germany), Barcelona 2003 (Jul.26.2003)

## Results
### Finals

| Place | Name | Nationality | Time | Note |
| 1st | Kate Ziegler | USA | 8:18.52 | CR |
| 2nd | Laure Manaudou | France | 8:18.80 | ER |
| 3rd | Hayley Peirsol | USA | 8:26.41 | |
| 4th | Erika Villaécija García | Spain | 8:27.59 | |
| 5th | Sophie Huber | France | 8:28.23 | |
| 6th | Ai Shibata | Japan | 8:31.73 | |
| 7th | Wendy Trott | South Africa | 8:32.60 | |
| 8th | Kylie Palmer | Australia | 8:34.96 | |

### Preliminaries

| Rank | Name | Nationality | Time | Note |
| 1 | Laure Manaudou | France | 8:25.65 | Q |
| 2 | Kate Ziegler | USA | 8:28.11 | Q |
| 3 | Kylie Palmer | Australia | 8:29.36 | Q |
| 4 | Erika Villaécija García | Spain | 8:29.56 | Q |
| 5 | Ai Shibata | Japan | 8:29.58 | Q |
| 6 | Sophie Huber | France | 8:29.68 | Q |
| 7 | Hayley Peirsol | USA | 8:29.82 | Q |
| 8 | Wendy Trott | South Africa | 8:31.53 | Q |
| 9 | Rebecca Cooke | Great Britain | 8:35.25 | |
| 10 | Rebecca Adlington | Great Britain | 8:36.26 | |
| 11 | Lotte Friis | Denmark | 8:37.16 | |
| 12 | TAN Miao | China | 8:37.35 | |
| 13 | Brittany Reimer | Canada | 8:37.56 | |
| 14 | Flavia Rigamonti | Switzerland | 8:38.22 | |
| 15 | Camelia Potec | Romania | 8:38.78 | |
| 16 | Yu Rui | China | 8:39.30 | |
| 17 | Tanya Hunks | Canada | 8:39.48 | |
| 18 | Stephanie Williams | Australia | 8:39.68 | |
| 19 | Kristel Köbrich | Chile | 8:40.46 | |
| 20 | Sachiko Yamada | Japan | 8:49.45 | |
| 21 | Ionela Cozma | Romania | 8:50.17 | |
| 22 | Andreina Pinto | Venezuela | 8:54.98 | |
| 23 | Monika Mocnik | Slovenia | 8:56.84 | |
| 24 | Nimitta Thaveesupsoonthorn | Thailand | 8:59.02 | |
| 25 | Quah Ting Wen | Singapore | 9:00.17 | |
| 26 | Lynette Lim | Singapore | 9:00.27 | |
| 27 | Maroua Mathlouthi | Tunisia | 9:02.29 | |
| 28 | Golda Marcus | El Salvador | 9:03.16 | |
| 29 | Carmen Nam | Hong Kong | 9:04.11 | |
| 30 | Ji Yeon Jung | South Korea | 9:05.18 | |
| 31 | Ji Eun Lee | South Korea | 9:05.97 | |
| 32 | Charlotte Johannsen | Denmark | 9:09.80 | |
| 33 | Sarah Hadj Aberrahmane | Algeria | 9:16.62 | |
| 34 | Maria Alejandra Torres | Peru | 9:18.57 | |
| 35 | Mona Simonsen | Faroe Islands | 9:18.65 | NR |
| 36 | Cai Lin Khoo | Malaysia | 9:21.90 | |
| 37 | Yanel Pinto | Venezuela | 9:22.06 | |
| 38 | Shrone Austin | Seychelles | 9:27.84 | |
| 39 | Simona Muccioli | San Marino | 9:29.20 | |
| 40 | Ranohon Amanova | Uzbekistan | 9:30.52 | |
| 41 | Fiorella Gomez-Sanchez | Peru | 9:32.62 | |
| 42 | Jutta Thomsen | Faroe Islands | 9:32.79 | |
| 43 | Valerie Eman | Aruba | 9:43.04 | |
| 44 | Marike Meyer | Namibia | 9:47.48 | |
| 45 | Hsu Jung He | Chinese Taipei | 9:53.44 | |
| 46 | Noufissa Chbihi | Morocco | 9:56.05 | |
| 47 | Hiba Bashouti | Jordan | 10:03.84 | |
| 48 | Sakina Ghulam | Pakistan | 10:20.23 | |
| 49 | Frances Nagatalevu | Fiji | 10:56.40 | |
| -- | Gretta Ishaka | Burundi | DNS | |