The 2012–13 NCAA Division I men's basketball season began in November 2012 with the 2K Sports Classic and ended in Atlanta, Georgia, with the 2013 NCAA Division I men's basketball tournament Final Four on April 6, 2013 and national championship game on April 8, 2013.

The 2012–13 season saw the second wave of membership changes resulting from a major realignment of NCAA Division I conferences.

Source for additional stats categories For this list, a "major upset" is defined as a win by a team seeded 7 or more spots below its defeated opponent.

The tournament will begin on March 19, 2013, with all games prior to the semifinals played on campus sites.

The fourth CollegeInsider.com Postseason Tournament was held beginning March 2013 and ending with a championship game in April 2013.