Dean Treister (born 19 December 1975) is an Australian former rugby league footballer who played in the 1990s, and 2000s.
A member of the Cronulla-Sutherland Sharks team, Treister played many games for the club from 1993 to 2003, including the 1997 Super League Grand Final.
His position of choice was hooker.
Throughout his time at the Cronulla-Sutherland Sharks he was a favourite amongst the fans.
Treister was known for his creative ability in attack and his ability to control the game.