| Country: | JPN |
| Type: | National |
| Route: | 383 |
| Map Custom: | yes |
| Photo Notes: | The highway crossing the Hirado Bridge |
| Length Km: | 75.8 |
| Length Ref: | [1] |
| Previous Type: | Route |
| Previous Route: | 382 |
| Next Type: | Route |
| Next Route: | 384 |
National Route 383 is a national highway of Japan connecting Hirado, Nagasaki and Imari, Saga in Japan, with a total length of 75.8 km (47.1 mi).