Puerto Rico Highway 803 (PR-803) is a northâÂÂsouth road that travels from eastern Corozal to southwestern Naranjito in Puerto Rico. With a length of , it begins at PR-164 in Palmarejo barrio and ends at its junction with PR-152 and PR-802 in Cedro Arriba barrio.
Puerto Rico Highway 803 is a rural road with one lane in each direction along its entire length. In Corozal, it begins at PR-164 intersection, crossing Palmarejo and Palos Blancos barrios until the Naranjito municipal limit. In Palos Blancos, PR-803 climbs the Corozal mountains and meets with PR-808 and PR-805 near the Monte Choca State Forest. In Naranjito, it has a shorter length than in Corozal, located entirely within Cedro Arriba barrio, beginning from the Corozal municipal limit to its southern terminus at PR-152 and PR-802 intersection.
Prior to its numerical designation, PR-803 was only known as . 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 () that increased the insular highway network to connect existing routes with different locations around Puerto Rico.