Athletics at the 2008 Summer Olympics – Men's 400 metres Final Final

| Lane | Athlete | Nationality | Time_ | Reaction_time |
|---|---|---|---|---|
| 4 | LaShawn Merritt | United States | 43.75 | 0.318 |
| 7 | Jeremy Wariner | United States | 44.74 | 0.209 |
| 9 | David Neville | United States | 44.80 | 0.293 |
| 5 | Chris Brown | Bahamas | 44.84 | 0.231 |
| 6 | Leslie Djhone | France | 45.11 | 0.164 |
| 8 | Martyn Rooney | Great Britain | 45.12 | 0.208 |
| 2 | Renny Quow | Trinidad and Tobago | 45.22 | 0.201 |
| 3 | Johan Wissman | Sweden | 45.39 | 0.218 |