The 2003 Pacific Life Pacific-10 Conference men's basketball tournament was played between March 13 and March 15, 2003, at Staples Center in Los Angeles, California.
Upsets defined this tournament, and for the first time, neither Arizona nor UCLA were in the final game.
The Most Outstanding Player was Luke Ridnour of Oregon.
Teams are seeded by conference record, with a tiebreaker system used to seed teams with identical conference records.
2007–08 Pac-10 Men's Basketball Media Guide pages 50–60 (PDF copy available at 2007–08 Pac-10 Men's Basketball Media Guide)