The University of the Philippines Diliman (also called UPD; Filipino: Unibersidad ng Pilipinas Diliman), also referred to as UP Diliman, is a public, coeducational, research university located in Diliman, Quezon City, Philippines. It was established on February 12, 1949, as the flagship campus and seat of administration of the University of the Philippines System, the national university of the Philippines.