The 2000 Big 12 Conference Baseball Tournament was held at AT&T Bricktown Ballpark in Oklahoma City, OK from May 17 through May 21. Nebraska won their second of three consecutive tournaments and earned the Big 12 Conference's automatic bid to the 2000 NCAA Division I Baseball Tournament. This was the second year the conference used the format of the College World Series, with two 4-team double-elimination brackets and a final championship game.