The 2005 Big 12 men's basketball tournament was the postseason men's basketball tournament for the Big 12 Conference.
It was played from March 10 to 13 in Kansas City, Missouri at Kemper Arena.
Oklahoma State won the tournament for the 2nd time and received the conference's automatic bid to the 2005 NCAA tournament.
[2] The Tournament consisted of a 12 team single-elimination tournament with the top 4 seeds receiving a bye.
[3] [1] Most Outstanding Player – Joey Graham, Oklahoma State[2]