Gavin Wanganeen is a former Australian rules footballer. He has played in two Australian Football League premierships with Essendon and Port Adelaide. He is the first cousin of brothers Aaron and Alwyn Davey.

Wanganeen began his career aged 16 with Port Adelaide in the South Australian National Football League (SANFL) (prior to that club joining the AFL), winning the SANFL Rookie of the Year award and gaining the attention of AFL side Essendon. Wanganeen debuted for Essendon in 1991, immediately finding a niche as an attacking defender. His quality was recognised in 1993 when he won the Brownlow Medal for the best and fairest player in the league, the first part-Aboriginal Australian to do so, as well as being a key player in Essendon's premiership win that year. In 2002, he was voted the 19th best Essendon player of all time in the "Champions of Essendon" list.

In 2000 he married Stephanie Richards and they now have 2 children - a daughter, Mia, and a son, Tex.