Dr. Orlando Sanchez Mercado (born June 26, 1946), also known as Orly Mercado, is a politician from the Philippines. Mercado was a senator for three terms (1987–1992, 1992–1995 and 1995–1998) and the head and anchor the popular radio program Radyo Patrol of ABS-CBN from 1969 to 1971. Since 1975, he has been the producer and host of GMA Network’s Kapwa Ko Mahal Ko the pioneer television program in public service in the Philippines. In 1998, he was appointed Secretary of National Defense by President Joseph Estrada. In 2009 he was appointed as the first permanent representative of the Philippines to ASEAN. He is currently the Secretary-General of the Eastern Regional Organization for Public Administration (EROPA), an organization of states, groups and individuals in the general area of Asia and the Pacific. He is a professor of public administration at the University of the Philippines where he also obtained his Ph.D. in Political Science.