2015 Mountain West Conference baseball tournament

The 2015 Mountain West Conference baseball tournament took place from May 21 through 25. All seven of the league's teams met in the double-elimination tournament to be held at University of Nevada, Reno's William Peccole Park. The winner of the tournament earned the Mountain West Conference's automatic bid to the 2015 NCAA Division I baseball tournament.

Format and seeding
The conference's seven teams were be seeded based on winning percentage during the round robin regular season schedule. The bottom two seeds played a single-elimination game prior to the main six-team bracket. The top two seeds received a bye to the second round, with the top seed playing the lowest seeded team that won its first round game, and the second seeded team playing the higher seeded first day winner. The losers of the first day's games played an elimination game in the double-elimination format.