2005 Pacific-10 Conference men's basketball tournament

The 2005 Pacific Life Pacific-10 Conference men's basketball tournament was played between March 10 and March 12, 2005, at Staples Center in Los Angeles, California. The champion of the tournament was Washington, which received the Pac-10's automatic bid to the NCAA tournament. The Most Outstanding Player was Salim Stoudamire of Arizona.

Seeds
The top eight Pacific-10 schools play in the tournament. Teams are seeded by conference record, with a tiebreaker system used to seed teams with identical conference records.

Tournament Notes

 * Arizona's 31-point victory margin (90-59) over Oregon State in the 2nd round was the largest for any game in this tournament's history. It has since been broken, but still remains the second largest margin.
 * This is the first and time only time in Pac-12 Tournament history that the 2 seed beat the 1 seed (as of 2013 these seeds have met 5 times).
 * Like the previous two years, no universities met their arch-rival in this year's tournament.
 * Three universities each had two players on the all-tournament team, which is the only time this has happened.
 * There were no blocked shots in the game between Washington and Arizona, although this has happened in other tournaments.

All tournament team

 * Salim Stoudamire, Arizona – Tournament MVP
 * Channing Frye, Arizona
 * Matt Haryasz, Stanford
 * Chris Hernandez, Stanford
 * Nate Robinson, Washington
 * Tre Simmons, Washington