Stuart Flanagan (born 5 January 1987 in Cooma, New South Wales, Australia) is a former Hungary international rugby league footballer who last played for the Appin Dogs and previously Cronulla Sharks in the Australian National Rugby League (NRL) competition.

[1] Flanagan also had representative honours in 2007 and 2008 when he was selected as the Hooker in the NSW Residents against Queensland.

In April 2008, Flanagan signed a three-year contract with the Canberra Raiders from the 2009 season.

[2] To this point, Flanagan had represented the Wests Tigers, but had found first grade opportunities hard to come by.

Following his retirement, he was one of seventeen Sharks players found guilty of using illegal substances under the club's 2011 supplements program, having a twelve-month suspension (which had already expired due to backdating) recorded against his name.