The 2005 Royal Rumble was the 18th annual Royal Rumble professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE). It was held for wrestlers from the promotion's Raw and SmackDown! brand divisions. The event took place on January 30, 2005, at the Save Mart Center in Fresno, California. As has been customary since 1993, the Royal Rumble match winner received a world championship match at that year's WrestleMania. For the 2005 event, the winner received their choice to challenge for either Raw's World Heavyweight Championship or SmackDown!'s WWE Championship at WrestleMania 21.

Save Mart Center at Fresno State is a multi-purpose arena, on the campus of California State University, Fresno, located in Fresno, California. An open house was held for the community on November 5, 2003, with the official ribbon cutting following on November 27, 2003. It is home to the Fresno State Bulldogs men's and women's basketball teams, women's volleyball team and wrestling team.