NCAA basketball tournament may refer to the following:
March Madness usually refers to the NCAA Division I men's basketball tournament; it also refers to:
The NCAA Division II men's basketball tournament is an annual championship tournament for colleges and universities that are members of NCAA Division II, a grouping of schools in the United States that are generally smaller than the higher-profile institutions grouped in Division I. The tournament, originally known as the NCAA College Division Basketball Championship, was established in 1957, immediately after the NCAA subdivided its member schools into the University Division and College Division. It became the Division II championship in 1974, when the NCAA split the College Division into the limited-scholarship Division II and the non-scholarship Division III, and added the "Men's" designation in 1982 when the NCAA began sponsoring a Division II women's championship.
NCAA tournament may refer to a number of tournaments organized by the National Collegiate Athletic Association:

The 1993 NCAA Division I men's basketball tournament involved 64 schools playing in single-elimination play to determine the national champion of men's NCAA Division I college basketball. It began on March 18, 1993, and ended with the championship game on April 5 in New Orleans, Louisiana. A total of 63 games were played.

The 1998 NCAA Division I men's basketball tournament involved 64 schools playing in single-elimination play to determine the national champion of men's NCAA Division I college basketball. It began on March 12, 1998, and ended with the championship game on March 30, at the Alamodome in San Antonio. A total of 63 games were played.
The 2011 NCAA Division I men's basketball tournament involved 68 teams playing in a single-elimination tournament that determined the National Collegiate Athletic Association (NCAA) Division I men's basketball national champion for the 2010-11 season. The 73rd edition of the NCAA tournament began on March 15, 2011, and concluded with the championship game on April 4, at Reliant Stadium in Houston, Texas. This tournament marked the introduction of the "First Four" round and an expansion of the field of participants from 65 teams to 68. Due to the geographical location of New Orleans and San Antonio, the "South" and "Midwest" regional games were replaced by the monikers "Southeast" and "Southwest" for this tournament, respectively.
The Savannah State Tigers basketball team represents Savannah State University and competes in NCAA Division II as a member of the Southern Intercollegiate Athletic Conference since July 2019. The Tigers play their home games in Tiger Arena on the university's Savannah, Georgia campus.
The 2009 National Invitation Tournament was a single-elimination tournament of 32 National Collegiate Athletic Association (NCAA) Division I teams that were not selected to participate in the 2009 NCAA Division I men's basketball tournament. The 72nd annual tournament began on March 17 on campus sites and ended on April 2 at Madison Square Garden in New York City, with Penn State winning the final 69–63 over Baylor.
The 2013 NCAA Division I men's basketball tournament involved 68 teams playing in a single-elimination tournament that determined the National Collegiate Athletic Association (NCAA) Division I men's basketball national champion for the 2012-13 season. The 75th annual edition of the tournament began on March 19, 2013, and concluded with the championship game on April 8, at the Georgia Dome in Atlanta.
The 2011 National Invitation Tournament was a single-elimination tournament of 32 NCAA Division I teams that were not selected to participate in the 2011 NCAA tournament. The 74th annual tournament began March 15 on campus sites ended on March 31 at Madison Square Garden in New York City. Wichita State defeated Alabama, 66–57, to win its first NIT title.
The 2012 National Invitation Tournament was a single-elimination tournament of 32 NCAA Division I teams that were not selected to participate in the 2012 NCAA tournament. The annual tournament began on March 13 on campus sites and ended on March 29 at Madison Square Garden. Stanford defeated Minnesota in the final game, by a score of 75–51 to become NIT champions for second time.
The 2013 National Invitation Tournament was a single-elimination tournament of 32 NCAA Division I teams that were not selected to participate in the 2013 NCAA tournament. The annual tournament began on March 19 on campus sites and ended on April 4 at Madison Square Garden. Baylor defeated Iowa, 74–54, to capture the Bears its first NIT title in school history.
The 2014 NCAA Division I men's basketball tournament involved 68 teams playing in a single-elimination tournament that determined the National Collegiate Athletic Association (NCAA) Division I men's basketball national champion for the 2013-14 season. The 76th annual edition of the tournament began on March 18, 2014, and concluded with the championship game on April 7, at AT&T Stadium in Arlington, Texas.
The 2016 NCAA Division I men's basketball tournament involved 68 teams playing in a single-elimination tournament to determine the men's National Collegiate Athletic Association (NCAA) Division I college basketball national champion for the 2015–16 season. The 78th edition of the Tournament began on March 15, 2016, and concluded with the championship game on April 4 at NRG Stadium in Houston, Texas. This was the first NCAA tournament to adopt the NCAA March Madness branding, including fully-branded courts at each of the tournament venues.
The 2017 NCAA Division I men's basketball tournament involved 68 teams playing in a single-elimination tournament to determine the men's National Collegiate Athletic Association (NCAA) Division I college basketball national champion for the 2016–17 season. The 79th edition of the tournament began on March 14, 2017, and concluded with the championship game on April 3 at University of Phoenix Stadium in Glendale, Arizona. The championship game was the first to be contested in the Western United States since the 1995 tournament when Seattle was the host of the Final Four.
The 2019 NCAA Division I men's basketball tournament was a single-elimination tournament of 68 teams to determine the National Collegiate Athletic Association (NCAA) Division I men's college basketball national champion for the 2018–19 season. The 81st annual edition of the tournament began on March 19, 2019, and concluded with the championship game on April 8, at U.S. Bank Stadium in Minneapolis, Minnesota, between the Texas Tech Red Raiders and the Virginia Cavaliers, with Virginia winning 85–77 in overtime.
The 2020 NCAA Division I men's basketball tournament was a planned single-elimination tournament of 68 teams to determine the National Collegiate Athletic Association (NCAA) Division I men's college basketball national champion for the 2019–20 season. The 82nd edition of the tournament would have begun on March 17, 2020, and concluded with the championship game on April 6 at Mercedes-Benz Stadium in Atlanta, Georgia.
The 2021 NCAA Division I women's basketball tournament was a single-elimination tournament of 64 teams to determine the National Collegiate Athletic Association (NCAA) Division I college basketball national champion for the 2020–21 NCAA Division I women's basketball season. The 39th edition of the tournament began on March 21, 2021, in sites around San Antonio, Texas, and concluded with the championship game on April 4 at the Alamodome, with the Stanford Cardinal defeating the Arizona Wildcats 54–53 to win their third NCAA title.
The 2019 NCAA Division III men's basketball tournament was a 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 1, 2019, following the 2018–19 season, and concluded with the championship game on March 16, 2019.
The 2020 NCAA Division III women's basketball tournament was a single-elimination tournament to determine the national champion of the women's NCAA Division III college basketball in the United States. Featuring sixty-four teams, it began on March 6, 2020, following the 2019–20 season, and was to conclude with the championship on March 21 at the Capital University Center Performance Arena in Columbus, Ohio; however, on March 12 the tournament was cancelled due to the coronavirus pandemic.