Puerto Rico Highway 115 (PR-115) is a highway which follows the west coastline of Puerto Rico from south Añasco at PR-2 to near downtown Aguadilla, where it becomes Puerto Rico Highway 111 after intersecting PR-2 again, and is the primary route to the town of Rincón, Puerto Rico, a tourist and frequent destination of surfers.
As it enters Rincón, PR-115 becomes a divided highway with one lane per direction, with the median filled with trees, similar to some of the medians found in freeways in the United States. But PR-115 is not a freeway; it is a rural highway mostly one lane per direction. It enters toward downtown Rincón. The highway is subject to severe flooding when it rains.
Highway 115 Spur (, abbreviated Ramal PR-115 or PR-115R) is a road that branches off from PR-115 to PR-417 near downtown Aguada. Currently the entire road was renumbered to PR-4415.