| Country: | JPN |
| Type: | National |
| Route: | 270 |
| Map Custom: | yes |
| Length Km: | 52.4 |
| Length Ref: | [1] |
| Established: | 1963 |
| Direction A: | North |
| Terminus A: | in Ichikikushikino, Kagoshima |
| Direction B: | South |
| Terminus B: | in Makurazaki, Kagoshima |
| Previous Type: | Route |
| Previous Route: | 269 |
| Next Type: | Route |
| Next Route: | 271 |
National Route 270 is a national highway of Japan connecting Makurazaki and Ichikikushikino in Kagoshima prefecture, Japan, with a total length of 52.4 km (32.56 mi).