| Country: | IND |
| Type: | NH |
| Route: | 731 |
| Map Custom: | yes |
| Map Notes: | Map of the National Highway in red |
| Length Km: | 527 |
| Terminus A: | Saidpur via Jaunpur |
| Terminus B: | Palia Kalan, Lakhimpur Kheri district |
| States: | Uttar Pradesh |
| Previous Type: | NH |
| Previous Route: | 531 |
| Next Route: | 731A |
| Next Type: | NH |
National Highway 731 (NH 731) is a National Highway in India.[1]