Michael J. Ryan

Michael J. Ryan is the name of the following people:

• Michael J. Ryan (track and field athlete) ( Michael James Ryan ; 1889–1971), American marathon runner
• Michael J. Ryan (behavioral scientist) ( Michael Joseph Ryan ; * 1953), American behavioral scientist
• Michael J. Ryan (paleontologist) (born 1957), Canadian paleontologist
• Michael J. Ryan (politician) (* 1964), American lawyer and politician

This is a disambiguation page for differentiating between several terms identified with the same word.