The 2013 NCAA Division III Men's Basketball Tournament was a single-elimination tournament of 62 teams held to determine the men's collegiate basketball national champion of National Collegiate Athletic Association (NCAA) Division III. It began on March 2, 2013, and concluded with the championship game on April 7, 2013, at Philips Arena in Atlanta as part of the festivities for the 75th anniversary of the NCAA Tournament. The Amherst Lord Jeffs defeated the Mary Hardin–Baylor Crusaders 87–70 in the championship game. The quarterfinal and semifinal rounds were held in Salem Civic Center in Salem, Virginia, the traditional Final Four host.