The 2015 NCAA Men's Division I Basketball Tournament involved 68 teams playing in a single-elimination tournament to determine the national champion of men's NCAA Division I college basketball. The 77th edition of the tournament began on March 17, 2015, and concluded with the championship game on April 6 at Lucas Oil Stadium in Indianapolis. Duke defeated Wisconsin in the championship game, 68–63. Tyus Jones of Duke was the tournament's Most Outstanding Player.

The following are the sites selected to host each round of the 2015 tournament:

First Four

Second and Third Rounds (Round of 64 and Round of 32)

Regional Semifinals and Finals (Sweet Sixteen and Elite Eight)

National Semifinals and Championship (Final Four and Championship)

Kentucky entered the tournament unbeaten. After 22 years without an unbeaten team in the tournament, following UNLV in 1991, this is the second consecutive tournament with an unbeaten team (after Wichita State in the previous). The Wildcats, by beating Cincinnati in the third round, set an NCAA men's record with 36 straight wins to start a season. They would win two more before Wisconsin upset them in the Final Four.

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