The 2018 Pac-12 Conference men's basketball tournament was the postseason men's basketball tournament for the Pac-12 Conference and was played during March 7–10, 2018, at T-Mobile Arena on the Las Vegas Strip in Paradise, Nevada.
[4] Teams were reseed after each round with highest remaining seeds receiving home court advantage.
* denotes overtime period The following former players were inducted into the Pac-12 Hall of Honor on Friday, March 7, during a ceremony prior to the semifinals of the 2018 Pac-12 men's basketball tournament: Michael Wright (Arizona men's basketball), Linda Vollstedt (Arizona State women's golf), Matt Biondi (California men's swimming), Bill Toomey (Colorado men's track and field), Andrew Wheating (Oregon men's track and field), Carol Menken-Schaudt (Oregon State women's basketball), Kerri Walsh Jennings (Stanford women's volleyball), Rafer Johnson (UCLA track and field and men's basketball).
Cheryl Miller (USC women's basketball), Missy Marlowe (Utah gymnastics), Sonny Sixkiller (Washington football), and Laura Lavine (Washington State women's track and field).
[8] Five Pac-12 teams were placed with at-large bids in the 2018 National Invitation Tournament, the most-ever for the Conference: USC, Utah, Oregon, Stanford, and Washington.