| Year: | 2009 |
| Conference: | West Coast Conference |
| Division: | I |
| Gender: | Men's |
| Teams: | 8 |
| Arena: | Orleans Arena |
| City: | Paradise, Nevada |
| Champions: | Gonzaga |
| Titlecount: | 10th |
| Coach: | Mark Few |
| Coachcount: | 8th |
| Mvp: | Micah Downs |
| Mvpteam: | Gonzaga |
| Television: | ESPN2, ESPN |
The 2009 West Coast Conference men's basketball tournament took place March 6–9, 2009, at Orleans Arena in Paradise, Nevada, just outside Las Vegas. This was the first WCC tournament to have been held at a neutral site; it previously rotated between various campus sites. The semifinals were televised by ESPN2, and the championship game was televised by ESPN.
Gonzaga capped off a perfect season in conference play by winning the tournament. The Bulldogs' trip to the 2009 NCAA tournament was their 11th in a row.
Asterisk denotes game ended in overtime.