Donald Montgomery (January 19, 1808 – July 31, 1893) was a farmer and politician from Prince Edward Island. He represented Princetown and then 1st Queens in the Legislative Assembly of Prince Edward Island from 1838 to 1874 as a Conservative member and served as a Conservative member of the Senate of Canada from 1873 until his death. Montgomery Manor in Park Corner, PEI, is where Donald Montgomery and his wife, Ann Murray raised their family. His granddaughter Lucy Maud Montgomery wrote a series of books based on the island including Anne of Green Gables.