| State: | PR |
| Type: | PR |
| Route: | 505 |
| Alternate Name: | Spanish; Castilian: Carretera La Guardarraya |
| Map: | Mapa de la carretera PR-505 en Ponce, Puerto Rico (M505).svg |
| Length Km: | 16.4 |
| Direction A: | South |
| Terminus A: | in Machuelo Arriba |
| Junction: | in Machuelo Arriba–Montes Llanos–Portugués |
| Direction B: | North |
| Terminus B: | in San Patricio |
| Municipalities: | Ponce |
| Previous Type: | Ter |
| Previous Route: | 504 |
| Next Type: | Ter |
| Next Route: | 506 |
Puerto Rico Highway 505 (PR-505) is a tertiary[1] state[2] highway in Ponce, Puerto Rico.
PR-505 runs north to south, in a general SSE direction, and mostly alongside Bayagán River in barrio Machuelo Arriba. Its southern terminus is at its intersection with PR-14, near PR-10 and PR-139. The road connects Barrio San Patricio to the urban area of city of Ponce.
The road and serves the communities of La Mocha, Montes Llanos, and Hogares Seguros, among others.[3] The community of "La Yuca" is also on PR-505, at km 11.3, in the jurisdiction of Barrio Machuelo Arriba.[4]