Mark Bradley Geyer OAM (born 7 December 1967) is an Australian radio host and former professional rugby league footballer who played in the 1980s, 1990s and 2000. An Australian international and New South Wales State of Origin representative second-rower, he is a rugby league media identity. Geyer's club career was played primarily with Penrith, with whom he won a premiership in 1991, as well as the Balmain Tigers and the Western Reds. He is the brother of fellow former professional rugby league footballer Matt Geyer.