Ray Mariuz (born December 25, 1980 in Mississauga, Ontario) is a retired professional Canadian football linebacker He was drafted 28th overall by the Toronto Argonauts in the 2003 CFL Draft and won a Grey Cup championship in 2004. In 2011, Mariuz retired from professional football. However, he would come out of retirement later in the 2011 CFL season and resume his career with the Hamilton Tiger-Cats. He played CIS football for the McMaster Marauders. Outside of football, Mariuz works as a real estate agent in Burlington, Ontario.