The Governor's Academy is a co-educational, college-preparatory day and boarding school in Byfield, Massachusetts. Established in 1763 in memory of Massachusetts governor William Dummer, Governor's is the oldest boarding school in New England.

William Dummer was a politician in the Province of Massachusetts Bay. He served as its lieutenant governor for fourteen years (1716–1730), including an extended period from 1723 to 1728 when he acted as governor. He is remembered for his role in leading the colony during what is sometimes called Dummer's War, which was fought between the British colonies of northeastern North America and a loose coalition of native tribes in what is now New Hampshire, Maine, New Brunswick, and Nova Scotia.