| State: | PR |
| Type: | PR |
| Route: | 806 |
| Length Km: | 1.9 |
| Direction A: | South |
| Terminus A: | in Palmarejo–Abras |
| Direction B: | North |
| Terminus B: | in Quebrada Arenas |
| Municipalities: | Corozal, Toa Alta |
| Previous Type: | Ter |
| Previous Route: | 805 |
| Next Type: | Ter |
| Next Route: | 807 |
Puerto Rico Highway 806 (PR-806) is a north–south road between the municipalities of Corozal and Toa Alta in Puerto Rico. With a length of 1.9km (01.2miles), it begins at PR-159 junction between Palmarejo and Abras barrios in Corozal, and ends at PR-823 intersection in Quebrada Arenas barrio in Toa Alta.
Puerto Rico Highway 806 is a rural road with a single lane per direction along its entire length. In Corozal, it has a short length from PR-159 junction to the Toa Alta municipal limit. In Toa Alta, PR-806 extends from the Corozal municipal limit to PR-823 junction. The entire length in Corozal is located in Abras barrio, while in Toa Alta it is located entirely in Quebrada Arenas barrio.
Prior to its numerical designation, PR-806 was only known as the road that goes to the Spanish; Castilian: Carretera del Güinche from the old Road 10 (current PR-159). The current numerical designation corresponds to the 1953 Puerto Rico highway renumbering, a process implemented by the Puerto Rico Department of Transportation and Public Works (es|Departamento de Transportación y Obras Públicas) that increased the insular highway network to connect existing routes with different locations around Puerto Rico.