John O'Sullivan

John O'Sullivan is the name of the following people:

• John O'Sullivan (singer) (1879–1955), Irish opera singer (tenor)
• John O'Sullivan (politician) (1881–1948) Irish historian, university professor and politician
• John O'Sullivan (football player, 1922) (1922– ??), Irish football player
• John O'Sullivan (soccer player, 1993) (born 1993), Irish soccer player
• John L. O'Sullivan (1813–1895), American journalist

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