The 2023 Big 12 Men's Basketball Tournament was a postseason men's basketball tournament for the Big 12 Conference.

It was played from March 8 to 11 in Kansas City, Missouri at the T-Mobile Center.

The top six teams received a first-round bye.

Teams were seeded by record within the conference, with a tiebreaker system to seed teams with identical conference records.

[3] Most Outstanding Player – Dylan Disu, Texas