Richard O'Sullivan (disambiguation)

Richard O'Sullivan is a British actor.
Richard 'O'Sullivan' may also refer to:

Richard O'Sullivan (filmmaker), American screenwriter, director, actor, producer, cinematographer, film editor, radio personality, and founder of Lost Colony Entertainment
Richard O'Sullivan (teacher), teacher and school inspector in Auckland
Dick O'Sullivan, Irish boy featured on programme five of On the Street Where You Live
Dick O'Sullivan, interim manager of Punchestown Racecourse