Grant Karlus Mizens, OAM[1] (born 19 April 1977)[2] is an Australian wheelchair basketball player.

[1] At the 2012 Summer Paralympics he was part of the Australian men's wheelchair team that won silver.

[6] He was a member of the national team that competed at the 2009 IWBF Asia Oceania Championships.

[11] Mizens in his final year of high school was involved in a car accident that led to paraplegia from the waist down.

[12] Mizen has completed a Bachelor of Arts in Economics from the University of Illinois and is a Graduate member of the Australian Institute of Company Directors.