| Year: | 1991 |
| Conference: | West Coast Conference |
| Division: | I |
| Gender: | Men's |
| Teams: | 8 |
| Arena: | Toso Pavilion |
| City: | Santa Clara, California |
| Champions: | Pepperdine |
| Titlecount: | 1st |
| Coach: | Tom Asbury |
| Coachcount: | 1st |
| Mvp: | Geoff Lear |
| Mvpteam: | Pepperdine |
The 1991 West Coast Conference men's basketball tournament was the fifth edition of the tournament, held March 2–4 at the Toso Pavilion at Santa Clara University in Santa Clara, California.[1]
Top seed Pepperdine entered the tournament on a thirteen-game winning streak and defeated #4 seed in the championship game, in overtime, to win the Waves' first WCC tournament title.[2]
Pepperdine's Doug Christie, the WCC player of the year, sprained his right knee in the quarterfinal opener against Portland, which ended his season.[3]
The Waves received the conference's automatic bid to the 64-team NCAA tournament as the fourteenth seed in the West regional.[4]