Eugene O'Neill may refer to:
- Eugene O'Neill (1888–1953), American playwright
- Eugene O'Neill Theatre, Broadway theater
- Eugene O'Neill Theater Center, Connecticut theater
- Eugene O'Neill Award, Swedish acting award
- Eugene O'Neill National Historic Site, Danville, California
- Eugene O'Neill Jr. (1910–1950), professor of Greek literature, son of the playwright
- Eugene O'Neill (hurler) (born 1978), Irish hurler
- Eugene M. O'Neill (1850–1926), Irish-born American lawyer and newspaper owner
- Eugene W. O'Neill Jr. (1919-1998), American Air Force officer and flying ace
This disambiguation page lists articles about people with the same name.
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