Charles Duane Baker, Jr. (born November 13, 1956), is an American businessman and politician serving as the 72nd governor of Massachusetts since January 8, 2015. A moderate Republican, he was a cabinet official under two governors of Massachusetts and served ten years as chief executive officer (CEO) of Harvard Pilgrim Health Care.
Baker grew up in Needham, Massachusetts, earned an AB from Harvard University in 1979, and later obtained an MBA from Northwestern University's Kellogg School of Management. In 1991, he became Massachusetts Undersecretary of Health and Human Services under Governor Bill Weld. In 1992, he was appointed Secretary of Health and Human Services of Massachusetts. He later served as Secretary of Administration and Finance under Weld and his successor, Paul Cellucci.
After working in government for eight years, Baker left to become CEO of Harvard Vanguard Medical Associates and later Harvard Pilgrim Health Care, a non-profit health benefits company. During this time he served three years as a selectman of Swampscott and considered a run for Massachusetts governor in 2006. He stepped down in July 2009 to run for governor on a platform of fiscal conservatism and cultural liberalism. He was unopposed in the Republican primary but lost in the 2010 general election to the Democratic incumbent, Deval Patrick.