Mark Allen Montgomery (born April 1, 1970) is an American college basketball coach for the Michigan State Spartans, currently at his second stint with the university. He previously was the head men's basketball coach at Northern Illinois University. Montgomery replaced Ricardo Patton as head coach of the Huskies on March 24, 2011. Prior to being named the head coach at NIU, he was an assistant to head coach Tom Izzo at Michigan State for 10 seasons, the last four as associate head coach. The Spartans reached the NCAA tournament in each of Montgomery's 10 seasons on the staff, including three Final Four appearances and a trip to the title game in 2009.