WrestleMania XXVI was the 26th annual WrestleMania 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 March 28, 2010, at the University of Phoenix Stadium in the Phoenix suburb of Glendale, Arizona. It was the first WrestleMania since WrestleMania XI with a non-title match as a main event, the first WrestleMania held in Arizona, and the third held in an open-air venue, after WrestleMania IX and WrestleMania XXIV.

The card consisted of eight matches, including three main matches. The final match on the card was a no disqualification, no countout match where The Undertaker defeated Shawn Michaels to improve his undefeated WrestleMania streak to 18–0; per the pre-match stipulation, Michaels was forced to retire (though he would wrestle one more match at Crown Jewel 2018). In the main match from the SmackDown brand, World Heavyweight Champion Chris Jericho defeated the 2010 Royal Rumble winner Edge to retain the title. In Raw's main match, John Cena defeated Batista to win the WWE Championship. The undercard also included a No Holds Barred match between Bret Hart and Mr. McMahon and the sixth annual Money in the Bank ladder match, which was the last to be contested at a WrestleMania before it became a stand-alone PPV event in July.

Tickets for the event commenced sale to the public on November 7, 2009. WrestleMania XXVI generated approximately 885,000 PPV buys, grossing US$49 million in revenue. With an attendance of 72,219, the event grossed $5.8 million in ticket sales, making the event the highest grossing and attended entertainment event held at the University of Phoenix Stadium.