Michael J. Ryan may refer to:
- Michael J. Ryan (athlete) (1889–1971), winner of the 1912 Boston Marathon
- Michael J. Ryan (biologist) (fl. 1980s–2020s), American biologist
- Michael J. Ryan (doctor) (born 1965), Irish epidemiologist, surgeon, and chief executive director of the WHO Health Emergencies Programme
- Michael J. Ryan (Irish politician) (died 1952), Irish barrister, professor and politician
- Michael J. Ryan (Philadelphia politician) (1862–1943), president of the United Irish League of America
- Michael James Ryan or Mike Ryan (1941–2020), American baseball player
- Michael Joseph Ryan (footballer) or Mike Ryan (1930–2006), English footballer
- Michael Joseph Ryan (media hoaxer) or Rocky Ryan (1937–2004), British media hoaxer
See also
- J. Michael Ryan (born 1957), American judge
- Michael Ryan (disambiguation)
- Michael Joseph Ryan (disambiguation)
Topics referred to by the same termThis disambiguation page lists articles about people with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: