The 2012 Summit League Men's Basketball Tournament was the 2012 post-season tournament for The Summit League, an NCAA Division I athletic conference. The tournament took place March 3–6, 2012 at the Sioux Falls Arena in Sioux Falls, South Dakota. South Dakota State won and received an automatic bid to the 2012 NCAA Tournament. This was the final Summit League tournament for Southern Utah, which joined the Big Sky Conference for the 2012–13 basketball season. Meanwhile, Oral Roberts joined the Southland Conference in 2012–13 but returned to the Summit in 2014–15.