| Country: | JPN |
| Type: | National |
| Route: | 137 |
| Map Custom: | yes |
| Length Km: | 30.0 |
| Length Ref: | [1] |
| Established: | 1953 |
| Direction A: | South |
| Terminus A: | in Fujiyoshida, Yamanashi |
| Direction B: | North |
| Terminus B: | in Fuefuki, Yamanashi |
| Previous Type: | Route |
| Previous Route: | 136 |
| Next Type: | Route |
| Next Route: | 138 |
National Route 137 is a national highway of Japan connecting Fujiyoshida, Yamanashi and Fuefuki, Yamanashi in Japan, with a total length of 30 km (18.64 mi).