The men's 400 metres event at the 2007 Asian Athletics Championships was held in Amman, Jordan on July 25–27.
Medalists edit
| Gold | Silver | Bronze |
Prasanna Sampath Amarasekara Sri Lanka
|
Reza Bouazar Iran
|
Mohammad Akefian Iran
|
Results edit
Heats edit
Final edit
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
 |
6 | Prasanna Sampath Amarasekara | Sri Lanka |
46.71 | |
 |
3 | Reza Bouazar | Iran |
46.90 | |
 |
2 | Mohammad Akefian | Iran |
46.93 | |
| 4 | 5 | K. M. Mathew |  India |
46.94 | |
| 5 | 4 | Ashok Jayasundara | Sri Lanka |
47.07 | |
| 6 | 1 | Boris Khamzin |  Kazakhstan |
47.57 | |
| 7 | 8 | Ismail Al-Sabani |  Saudi Arabia |
48.20 | |
| 7 | Amran Raj Krishnan |  Malaysia |
DNS |