The 2015 Royal Rumble was the 28th annual Royal Rumble professional wrestling pay-per-view (PPV) and livestreaming event produced by WWE. It took place on January 25, 2015, at the Wells Fargo Center in Philadelphia, Pennsylvania. This was the second Royal Rumble held at this venue after the 2004 event, when it was formerly known as Wachovia Center; the arena changed its name to Wells Fargo Center in 2010. It was also the first Royal Rumble to livestream on the WWE Network, which launched in February 2014. As has been customary since 1993, the Royal Rumble match winner received a world championship match at that year's WrestleMania. For the 2015 event, the winner received a match for the WWE World Heavyweight Championship at WrestleMania 31.

Six matches were contested at the event, including one on the Kickoff pre-show. In the main event, Roman Reigns won the 2015 Royal Rumble match by last eliminating Rusev. Also on the event's card, The Usos (Jey Uso and Jimmy Uso) defeated The Miz and Damien Mizdow to retain the WWE Tag Team Championship, while WWE World Heavyweight Champion Brock Lesnar successfully defended his title against Seth Rollins and John Cena in a triple threat match in the penultimate match.

Like the previous year's event, the 2015 Royal Rumble was mared by a strongly negative audience reaction to the Royal Rumble match, which was won by Roman Reigns. The event as a whole, however, received mixed reviews, with the WWE World Heavyweight Championship triple threat match receiving the most praise from critics and fans. The event received 145,000 buys (excluding WWE Network views), down from the previous year's 467,000 buys.