Swimming at the 2008 Summer Olympics – Women's 400 metre individual medley Heats Heats

| Heat | Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 5 | 8 | Anja Klinar | Slovenia | 4:38.90 |
| 2 | 3 | Joanna Melo | Brazil | 4:40.18 |
| 2 | 7 | Sara Nordenstam | Norway | 4:40.28 |
| 4 | 6 | Camille Muffat | France | 4:40.29 |
| 3 | 8 | Tanya Hunks | Canada | 4:40.63 |
| 5 | 1 | Jessica Pengelly | South Africa | 4:41.04 |
| 3 | 1 | Samantha Hamill | Australia | 4:41.89 |
| 5 | 6 | Joanne Andraca | France | 4:43.88 |
| 3 | 2 | Helen Norfolk | New Zealand | 4:44.22 |
| 2 | 5 | Liu Jing | China | 4:44.96 |
| 2 | 1 | Jördis Steinegger | Austria | 4:45.15 |
| 4 | 2 | Saori Haruguchi | Japan | 4:45.22 |
| 1 | 3 | Nam Yoo-Sun | South Korea | 4:46.74 |
| 4 | 8 | Alexa Komarnycky | Canada | 4:46.98 |
| 2 | 8 | Susana Escobar | Mexico | 4:47.32 |
| 2 | 6 | Svetlana Karpeeva | Russia | 4:50.22 |
| 1 | 6 | Quah Ting Wen | Singapore | 4:51.25 |