Aaron Warren O'Brien (born 2 October 1981) is an Australian cricketer.
He has played first class cricket for New South Wales.
He was Middleton Cricket Club's professional deputising for the injured Brendon Reddy for the match against Crompton.
[1] O'Brien signed with South Australia for the 2008–2009 domestic season, to get regular playing opportunities.
This biographical article related to an Australian cricket player born in the 1980s is a stub.