| Country: | JPN |
| Type: | National |
| Route: | 502 |
| Map Custom: | yes |
| Length Km: | 53.3 |
| Length Ref: | [1] |
| Established: | 1993 |
| Direction A: | West |
| Terminus A: | in Taketa, Ōita |
| Direction B: | East |
| Terminus B: | in Usuki, Ōita |
| Previous Type: | Route |
| Previous Route: | 501 |
| Next Type: | Route |
| Next Route: | 503 |
is a national highway between Usuki, Ōita and Taketa, Ōita in Japan. It has a total length of 53.3 km (33.1 mi).
A section of National Route 502 in Taketa is a musical road.[2]