2025 Big 12 Conference baseball tournament

The 2025 Big 12 Conference baseball tournament was a postseason baseball tournament for the Big 12 Conference in the 2025 NCAA Division I baseball season. The tournament took place from May 21–24, 2025 and was held at Globe Life Field in Arlington, Texas. The 28th annual postseason Big 12 tournament, Arizona defeated TCU to earn the automatic berth to the 2025 NCAA Division I baseball tournament.
The tournament has been held since 1997, the inaugural year of the Big 12 Conference. Among current league members, Oklahoma State and TCU have won the most championships with four. Among original members, Kansas State has never won the event. Defending champion Oklahoma State won their fourth championship in 2024. Iowa State discontinued their program after the 2001 season without having won a title. This is the first season with Arizona, Arizona State and Utah since conference realignment, with Colorado not fielding a team.

Format and seeding

The top twelve finishers from the regular season will be seeded one through twelve, and will then play a single-elimination tournament. This is a change from the previous season where the tournament was double elimination.

† ''First Round Bye
UCF & Utah did not qualify for the tournament''

The following players were members of the 2025 Big 12 Baseball All-Tournament Team. Player in Bold selected as Tournament MVP.