Peter O'Malley (disambiguation)

Peter O'Malley (born 1937) is an American baseball executive.

Peter O'Malley may also refer to:

• Peter O'Malley (cricketer) (1927–1997), New Zealand cricketer
• Peter O'Malley (footballer), New Zealand international football (soccer) player
• Peter O'Malley (golfer) (born 1965), Australian golfer