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

| Heat | Lane | Name_ | Nationality | Time_ |
|---|---|---|---|---|
| 2 | 2 | Katharina Schiller | Germany | 4:51.52 |
| 1 | 4 | Lew Yih Wey | Malaysia | 4:55.83 |
| 1 | 5 | Anna-Liisa Põld | Estonia | 4:58.21 |
| 2 | 4 | Georgina Bardach | Argentina | 5:00.87 |
| 1 | 7 | Nimitta Thaveesupsoonthorn | Thailand | 5:02.18 |
| 1 | 2 | Maroua Mathlouthi | Tunisia | DNS |