2017 Asian Athletics Championships – Men's 400 metres hurdles
The men's 400 metres hurdles at the 2017 Asian Athletics Championships was held on 7 and 8 July.
Medalists
Results
Heats
Qualification rule: First 2 in each heat and the next 2 fastest qualified for the final.| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 1 | Chen Chieh | 50.64 | Q | |
| 2 | 2 | Eric Cray | 50.85 | Q | |
| 3 | 1 | Youssef Karam Taher | 50.90 | Q | |
| 4 | 3 | Yu Chia-hsuan | 50.98 | Q | |
| 5 | 1 | Dmitriy Koblov | 50.99 | q | |
| 6 | 2 | M.P. Jabir | 51.06 | Q | |
| 7 | 1 | Yuta Konishi | 51.43 | q | |
| 8 | 3 | Santhosh Kumar Tamilarasan | 51.59 | Q | |
| 9 | 3 | Chan Ka Chun | 51.60 | ||
| 10 | 3 | Mohammed Jasim | 51.75 | ||
| 11 | 2 | Abdullah Rizqallah Mulayhi | 52.05 | ||
| 12 | 1 | Durgesh Kumar Pal | 52.47 | ||
| 13 | 2 | Hwang Hye-onu | 52.52 | ||
| 14 | 3 | Mehboob Ali | 52.61 | ||
| 15 | 3 | Francis Medina | 53.34 | ||
| 16 | 2 | Alisher Pulotov | 53.57 | ||
| 17 | 2 | Igor Kondratyev | 53.61 | ||
| 18 | 2 | Jassem Waleed Al-Mas | 53.88 | ||
| 19 | 3 | Azizdzhon Abdullaev | 54.87 | ||
| 20 | 1 | Alamgir Hossain | 56.16 |
Final
| Rank | Lane | Name | Nationality | Time | Notes |
| 4 | Eric Cray | 49.57 | |||
| 3 | Chen Chieh | 49.75 | |||
| 7 | M.P. Jabir | 50.22 | |||
| 4 | 2 | Dmitriy Koblov | 50.30 | ||
| 5 | 5 | Yu Chia-hsuan | 50.90 | ||
| 6 | 8 | Santhosh Kumar Tamilarasan | 50.95 | ||
| 7 | 6 | Youssef Karam Taher | 51.36 | ||
| 8 | 1 | Yuta Konishi | 51.72 |