John Milligan is the name of:
- John J. Milligan (1795–1875), American lawyer, judge and political figure
- John Colborne Milligan (1867–1941), Ontario lawyer, judge and political figure
- Jocko Milligan, born John Milligan (1861–1923), Major League Baseball player
- John Milligan (baseball) (1904–1972), Major League Baseball player
- John F. Milligan, CEO of Gilead Sciences
- John Milligan-Whyte (born 1952), American businessman, lawyer and philosopher
This disambiguation page lists articles about people with the same name.
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