The 2009 Mountain West Conference baseball tournament took place from May 19 through 23.
The top six regular season finishers of the league's seven teams met in the double-elimination tournament held at Texas Christian University's Lupton Stadium.
Sixth seeded Utah won their first and only Mountain West Conference Baseball Championship with a championship game score of 9–3 and earned the conference's automatic bid to the 2009 NCAA Division I baseball tournament.
The top six finishers from the regular season were seeded one through six based on conference winning percentage only.
[4] Tyler Yagi, an outfielder for the champion Utah Utes, was named the tournament Most Valuable Player.