2005 NCAA Division III men's basketball tournament

The 2005 NCAA Division III men's basketball tournament was the 31st annual single-elimination tournament to determine the national champions of National Collegiate Athletic Association (NCAA) men's Division III collegiate basketball in the United States.

The field contained forty-eight teams, and each program was allocated to one of four sectionals. All sectional games were played on campus sites, while the national semifinals, third-place final, and championship finals were contested at the Salem Civic Center in Salem, Virginia.

Defending champions Wisconsin–Stevens Point defeated Rochester (NY), 73–49, in the championship, clinching their first national title. Stevens Point were the first men's Division III program to defend their national title since Wisconsin–Platteville in 1999.

The Pointers (29–3) were again coached by Jack Bennett.

Jason Kalsow, also from Stevens Point, was named Most Outstanding Player.

Final Four

 * Site: Salem Civic Center, Salem, Virginia