The 2008 Pacific Life Pacific-10 Conference men's basketball tournament was held between March 12 and March 15, 2008, at Staples Center in Los Angeles. All ten schools in the conference qualified for the tournament. Number one seed UCLA defeated number two seed Stanford 67–64 to win the conference tournament. It was the first time since 2005 that the top two seeded teams were in the final game. UCLA was the regular season champion. A record crowd of 18,997 (Staples Center capacity for Basketball) was on hand to watch UCLA defeat USC 57–54 in the semi-finals. On January 3, 2010, USC Athletic Director Mike Garrett announced that the school was to vacate the 2007–08 season's victories for NCAA violations by the basketball team.

Seeds

All Pacific-10 schools played in the tournament. Teams were seeded by conference record, with a tiebreaker system used to seed teams with identical conference records.

Bracket

• Denotes a vacated win, as the result of a January 3, 2010 announcement that USC has vacated all wins during the 2007–2008 season, including its Pac-10 Conference tournament victory over Arizona State (therefore, USC finished the season with a record of 0–12).

All-Tournament Team

Most Outstanding Player

Aftermath & notes