Michael O'Neill
Michael O'Neill is the name of the following people:
- Michael O'Neill (actor) (born 1951), American actor
- Michael O'Neill (literary scholar) (* 1953), British literary scholar and writer
- Michael O'Neill (saxophonist) , American jazz musician and band leader
- Michael O'Neill (soccer player) (born 1969), Northern Irish soccer player and coach
- Michael Cornelius O'Neill (1898–1983), Canadian clergyman, Roman Catholic Archbishop of Regina
- Michael W. O'Neill (1940–2003), American civil engineer