Arthur "Art" Doligosa Defensor Sr. (born December 25, 1941) is a Filipino politician and a statesman who served as the Governor of Iloilo from 1992 until 2001, and again from 2010 until 2019. He also served as Representative of the 3rd District of Iloilo from 2001 to 2010. He was the Majority Leader of the 14th Congress of the Philippines. He is currently a member of the PDP–Laban. He is married to Cosette Rivera Defensor.