John McCoy may refer to:
- John McCoy (musician) (born c. 1950), British bass guitarist
- John McCoy (Irish politician) (born 1940), Irish Progressive Democrats politician 1987–1989
- John B. McCoy (born 1943), CEO Banc One Corporation
- John Calvin McCoy (1811–1889), founder of Kansas City, Missouri
- John W. McCoy (1910–1989), American artist
- Jack McCoy (John James McCoy), fictional district attorney in the television drama Law & Order
- John McCoy (American politician) (1943–2023), American Indian Washington State Senator
- John E. McCoy, United States National Guard general
This disambiguation page lists articles about people with the same name.
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