Thewomen's 400 metres event at the2007 Asian Athletics Championships was held inAmman, Jordan on July 26–27.
| Gold | Silver | Bronze |
| Chitra Soman | Asami Tanno | Menaka Wickramasinghe |
| Rank | Heat | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 2 | Chitra Soman | 53.60 | Q | |
| 2 | 2 | Asami Tanno | 53.67 | Q | |
| 3 | 2 | Menaka Wickramasinghe | 54.19 | Q | |
| 4 | 1 | Zhai Lin | 55.33 | Q | |
| 5 | 1 | Manjit Kaur | 55.70 | Q | |
| 6 | 1 | Natsumi Watanabe | 56.11 | Q | |
| 7 | 2 | Marina Maslenko | 56.95 | q | |
| 8 | 1 | Maryam Tousi | 57.50 | q | |
| 9 | 1 | Bushra Parveen | 1:02.9 | ||
| 2 | Anna Gavriushenko | DNF |
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 3 | Chitra Soman | 53.03 | |||
| 6 | Asami Tanno | 53.20 | |||
| 2 | Menaka Wickramasinghe | 54.11 | |||
| 4 | 4 | Zhai Lin | 54.17 | ||
| 5 | 5 | Manjit Kaur | 54.40 | ||
| 6 | 1 | Marina Maslenko | 54.76 | ||
| 7 | 7 | Natsumi Watanabe | 56.66 | ||
| 8 | 8 | Maryam Tousi | 1:00.11 |