San Martin de Porres, Parañaque

San Martin de Porres is an administrative division in southern Metro Manila, the Philippines. It is an elongated barangay located in the northeast corner of Parañaque adjoining the areas of Bicutan in Taguig and northern Muntinlupa. It is unique in that it is connected to the rest of Parañaque by only two bridges, one of which is a footbridge. Its western border follows the South Luzon Expressway, thus separating it from Merville, Sun Valley, Don Bosco and Marcelo Green. It neighbors Western Bicutan to the north, particularly the redevelopment area of the former Food Terminal Inc. (FTI) known as Arca South. To the east, it adjoins Taguig's barangays of Upper Bicutan, Central Bicutan, North Daang Hari and Tanyag. It neighbors South Daang Hari and Sucat, Muntinlupa to the south.

The village is roughly divided into three parts, the main residential area and housing development in the north by the Arca South development, the mixed commercial and residential area in the center by the Bicutan Interchange and the narrow industrial strip in the south. As of the 2020 census, it had a population of 20,283.