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 Saint Mary's in the championship game, 71–68 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]