Jack Grimes (born 11 May 1989) is a former professional Australian rules footballer who played for and is a former captain of the Melbourne Football Club in the Australian Football League (AFL). He was named as an All-Australian at the 2007 NAB AFL U18 Championships. He was drafted by Melbourne in the 2007 National Draft at pick 14, but was placed on the long-term injury list due to stress-related back problems. He made his debut in the final game of the 2008 AFL season but suffered a further back injury in the early part of the 2009 season.