Ava Carroll Waller was an American preservationist, writer and former First Lady of the U.S. state of Mississippi. Waller served as the First Lady of Mississippi from 1972 to 1976 during the administration of her husband, the late Governor Bill Waller. Carroll Waller spearheaded the restoration of the Mississippi Governor's Mansion in Jackson, Mississippi. She also led the move to have the Governor's Mansion designated as a National Historic Landmark in 1975, which was only the second time that a governor's residence had been listed as an NHL in the U.S. Additionally, Waller helped to purchase and restore the Manship House in Jackson. In 1980, the Mississippi Historical Society awarded Carroll Waller its Award of Merit for her work in historic preservation in the state.