Jim Gannon (born 16 June 1977) is an Australian former professional rugby league footballer who played as a prop in the 1990s, 2000s and 2010s.

He made 87 Super League appearances at Halifax before making the short trip to the Huddersfield Giants in 2003.

Gannon signed for the Hull Kingston Rovers in 2007 in preparation for the club's first season in the Super League.

He made 24 appearances for the Hull Kingston Rovers helping them secure their Super League status for the 2008 season.

Gannon was released from the second year of his contract with Hull Kingston Rovers to join National League One club the Widnes Vikings for the 2008 season.