Parguera is a barrio in the municipality of Lajas, Puerto Rico with a population of 2,082 in 2010. La Parguera is the main settlement of the barrio, often referred to as Poblado de la Parguera. Parguera is home to La Parguera Nature Reserve, which encompasses the bioluminescent bay, its surrounding mangrove forests, wetlands and a number of keys such as Mata La Gata and Cayo Enrique. The name Parguera derives from pargo, the local name for the Northern red snapper.

Lajas is a town and municipality of Puerto Rico located in the Lajas Valley in southwestern Puerto Rico, on the southern coast of the island, bordering the Caribbean Sea, south of San Germán and Sabana Grande; east of Cabo Rojo; and west of Guánica. Lajas is spread over 11 barrios plus Lajas Pueblo. It is part of the San Germán-Cabo Rojo Metropolitan Statistical Area.