Estey is a surname. Notable people with the surname include:
Audrée Estey (1910-2002), American founder of the American Repertory BalletJacob Estey (1814–1890), American founder of Estey OrganJames Wilfred Estey (1889–1956), Canadian puisne justice of the Supreme Court of CanadaJohn Estey, American Chief of Staff to Pennsylvania Governor Ed Rendell from 2003 until 2007Willard Estey (1919-2002), Canadian puisne justice of the Supreme Court of Canada, and son of James Estey