Mark O'Halloran (born 6 March 1981) is a former professional rugby league footballer who played for the Wests Tigers and the Penrith Panthers in the NRL, and the London Broncos in the ESL.
O'Halloran made his NRL début for Wests Tigers in 2001 and played 28 first grade games, mostly as a centre.
In 2004, O'Halloran moved to England, where he played in the Super League for the London Broncos.
O'Halloran returned to Australia from England and played for the Penrith Panthers in the NRL.
Since retiring, O'Halloran has become a PD/H/PE teacher and currently works at St Patrick's College, Strathfield.