| 2009 Big Sky Conference Men's Basketball Tournament | |
|---|---|
| Classification | Division I |
| Season | 2008–09 |
| Teams | 6 |
| First round site | campus sites |
| Semifinals site |
Dee Events Center Ogden, UT |
| Finals site | Dee Events Center Ogden, UT |
| Champions | Portland State (2nd title) |
| Winning coach | Ken Bone (2nd title) |
| MVP | Jeremiah Dominguez (Portland State) |
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The Big Sky Conference Men's Basketball Tournament took place from March 7–11, 2009. The winner, Portland State, advanced to the NCAA Tournament. Teams were re-seeded after the first round.