Swimming at the 2005 World Aquatics Championships – Women's 400 metre individual medley
# Swimming at the 2005 World Aquatics Championships – Women's 400 metre individual medley

The Women's 400m Individual Medley event at the 11th FINA World Aquatics Championships swam on 31 July 2005 in Montreal, Canada.

At the start of the event, the existing World (WR) and Championships (CR) records were:

* WR: 4:33.59 swum by Yana Klochkova (Ukraine) on 16 September 2000 in Sydney, Australia
* CR: 4:36.10 swum by Petra Schneider (Ukraine) on 1 August 1982 in Guayaquil, Ecuador

## Results

### Final

| Place | Swimmer | Nation | Time | Notes |
| - | - | - | - | - |
| 1 | Katie Hoff | USA | 4:36.07 | CR |
| 2 | Kirsty Coventry | Zimbabwe | 4:39.72 | |
| 3 | Kaitlin Sandeno | USA | 4:40.85 | |
| 4 | Lara Carroll | Australia | 4:42.25 | |
| 5 | Maiko Fujino | Japan | 4:42.68 | |
| 6 | Georgina Bardach | Argentina | 4:43.60 | |
| 7 | Éva Risztov | Hungary | 4:43.68 | |
| 8 | Zsuzsanna Jakabos | Hungary | 4:44.65 | |

### Preliminaries

| Rank | Heat + Lane | Swimmer | Nation | Time | Notes |
| - | - | - | - | - | - |
| 1 | H3 L4 | Katie Hoff | United States | 4:40.91 | q |
| 2 | H5 L3 | Zsuzsanna Jakabos | Hungary | 4:42.74 | q |
| 3 | H5 L5 | Éva Risztov | Hungary | 4:42.86 | q |
| 4 | H5 L4 | Kaitlin Sandeno | United States | 4:43.15 | q |
| 5 | H3 L6 | Lara Carroll | Australia | 4:43.25 | q |
| 6 | H4 L4 | Georgina Bardach | Argentina | 4:44.20 | q |
| 7 | H4 L3 | Maiko Fujino | Japan | 4:45.02 | q |
| 8 | H5 L6 | Kirsty Coventry | Zimbabwe | 4:45.95 | q |
| 9 | H3 L2 | Simona Păduraru | Romania | 4:46.74 | |
| 10 | H5 L2 | Yoo-Sun Nam | South Korea | 4:47.14 | |
| 11 | H3 L3 | Anja Klinar | Slovenia | 4:47.25 | |
| 12 | H3 L5 | Alessia Filippi | Italy | 4:47.32 | |
| 13 | H5 L1 | Elizabeth Warden | Canada | 4:48.81 | |
| 14 | H3 L7 | Ji Yeon Jung | South Korea | 4:48.99 | |
| 15 | H4 L7 | Sara Pérez | Spain | 4:51.41 | |
| 16 | H4 L2 | Helen Norfolk | New Zealand | 4:51.60 | |
| 17 | H4 L6 | Katarzyna Baranowska | Poland | 4:51.61 | |
| 18 | H5 L8 | Julie Hjorth-Hansen | Denmark | 4:51.94 | |
| 19 | H5 L7 | Aiko Morishita | Japan | 4:53.21 | |
| 20 | H2 L3 | Yi Ting Siow | Malaysia | 4:53.35 | |
| 21 | H4 L5 | Joanna Maranhão | Brazil | 4:53.41 | |
| 22 | H2 L5 | Wan-Tong Cheng | Chinese Taipei | 4:55.99 | |
| 23 | H2 L4 | Tanya Hunks | Canada | 4:56.18 | |
| 24 | H4 L8 | Sarah Paton | Australia | 4:57.90 | |
| 25 | H3 L8 | Kelly Bentley | New Zealand | 4:58.30 | |
| 26 | H3 L1 | Man-Hsu Lin | Chinese Taipei | 4:59.37 | |
| 27 | H4 L1 | Jing Zhao | China | 5:02.36 | |
| 28 | H2 L6 | Louise Jansen | Denmark | 5:03.24 | |
| 29 | H1 L3 | Shrone Austin | Seychelles | 5:08.17 | |
| 30 | H2 L7 | Ting Wen Quah | Singapore | 5:09.37 | |
| 31 | H1 L4 | Alia Atkinson | Jamaica | 5:09.72 | |
| 32 | H2 L2 | Bernadette Lee | Singapore | 5:09.87 | |
| 33 | H2 L1 | Lacken Malateste | Tahiti | 5:15.12 | |
| 34 | H1 L5 | Laura Rodriguez | Dominican Republic | 5:21.56 | |
