| State: | PR |
| Type: | PR |
| Route: | 588 |
| Maint: | Puerto Rico DTPW |
| Length Km: | 1.7 |
| Direction A: | South |
| Terminus A: | in Portugués |
| Direction B: | North |
| Terminus B: | Camino La Zarza in Portugués |
| Municipalities: | Ponce |
| Previous Type: | Urban |
| Previous Route: | 585 |
| Next Type: | Ter |
| Next Route: | 591 |
Puerto Rico Highway 588 (PR-588) is a tertiary mountainous state highway in Ponce, Puerto Rico. The road is approximately 1.5km (00.9miles) long and is a spur of Puerto Rico Highway 504.
At its southern terminus, the road starts at coordinates in its intersection with Puerto Rico Highway PR-504, and terminates at its northern terminus at coordinates at its intersection with Camino La Zarza. The road runs north to south, and mostly along Río Chiquito in barrio Portugués. The southern terminus connects at kilometer mark 3.0 of PR-504. Its northern terminus connects with Camino La Zarza, which leads eastwardly back to PR-504 via Camino Río Chiquito Hoyos, which becomes Camino La Cuchilla in its approach to PR-504. This Camino Río Chiquito Hoyos/Camino La Cuchilla run is about 0.9km (00.6miles) long.