| Country: | IND |
| Type: | NH |
| Route: | 56B |
| Length Km: | 19 |
| Map Custom: | yes |
| Map Notes: | Map of Old NH 56B in red |
| Direction A: | East |
| Terminus A: | Gosaiganj at NH 56 km 16 |
| Direction B: | West |
| Terminus B: | NH 25 km 19 |
| Destinations: | Mohanlalganj |
| States: | Uttar Pradesh |
| Previous Type: | NH |
| Previous Route: | 56A |
| Next Type: | NH |
| Next Route: | 57 |
National Highway 56B or NH 56B, the former national highway started at NH 56 km 16 and ended at NH 25 km 19 in Uttar Pradesh, India. The total length of the highway is 19 km and runs only in the state of Uttar Pradesh.[1]