Peter O'Malley may refer to:
- Peter O'Malley (born 1937) is an American baseball executive.
- Peter O'Malley (cricketer) (1927-1957), New Zealand cricketer
- Peter O'Malley (footballer), New Zealand international football (soccer) player
- Peter O'Malley (golfer) (born 1965), Australian golfer
This disambiguation page lists articles about people with the same name.
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