WrestleMania XXV (also marketed as "The 25th Anniversary of WrestleMania") was the twenty-fifth annual WrestleMania professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE), which took place on April 5, 2009 at Reliant Stadium in Houston, Texas. The event featured talent from all three WWE brands: Raw, SmackDown, and ECW. It was the second WrestleMania to be held in Houston, with the first being WrestleMania X-Seven at the Reliant Astrodome, which was held in 2001.

Eight matches were held on the event's card, which featured a supercard, a scheduling of more than one main bout. The first of these matches was a singles match for the WWE Championship that featured the champion, Triple H, defeating Randy Orton to retain the title. The second was a Triple Threat match for the World Heavyweight Championship, which saw John Cena defeat the champion, Edge, and the third participant in the match, The Big Show, to win the championship. The third main event was The Undertaker versus Shawn Michaels. Featured matches on the undercard included, Jeff Hardy versus Matt Hardy in an Extreme Rules match, Chris Jericho versus the team of Roddy Piper, Ricky Steamboat and Jimmy Snuka, and the annual Money in the Bank ladder match.