Guayanilla (Spanish pronunciation: , locally ) is a town and municipality of Puerto Rico located on the southern coast of the island, bordering the Caribbean Sea, south of Adjuntas, east of Yauco; and west of Peñuelas and about 12 miles (19 km) west of Ponce. Guayanilla is spread over 16 barrios and Guayanilla Pueblo (the downtown area and the administrative center of the city). It is part of the Yauco Metropolitan Statistical Area.