| State: | PR |
| Type: | PR |
| Route: | 109 |
| Maint: | Puerto Rico DTPW |
| Length Km: | 29.5 |
| Direction A: | West |
| Terminus A: | in Añasco Abajo |
| Junction: |
|
| Direction B: | East |
| Terminus B: | in San Sebastián barrio-pueblo |
| Municipalities: | Añasco, San Sebastián |
| Previous Type: | Urban |
| Previous Route: | 108 |
| Next Type: | Sec |
| Next Route: | 110 |
Puerto Rico Highway 109 (PR-109) is a rural road that travels from Añasco, Puerto Rico to San Sebastián.[1] This road extends from its junction with PR-2 and PR-115 west of downtown Añasco and ends at PR-119 in downtown San Sebastián.[2]