The 2018 NCAA Division III Men's Basketball Tournament was the 44th annual single-elimination tournament to determine the national champion of men's NCAA Division III college basketball in the United States. Featuring sixty-four teams, it began on March 2, 2018, following the 2017–18 season, and concluded with the championship game on March 17, 2018. Once again, the national semifinal and championship rounds were held at the Salem Civic Center in Salem, Virginia. Nebraska Wesleyan defeated Wisconsin–Oshkosh in the final, 78–72, to win their first national title. Cooper Cook was voted the MVP.