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