The 2015 Extreme Rules was the seventh annual Extreme Rules professional wrestling pay-per-view (PPV) and livestreaming event produced by WWE. It took place on April 26, 2015, at the Allstate Arena in the Chicago suburb of Rosemont, Illinois, and was the second Extreme Rules event to take place at this venue after the 2012 edition. The concept of Extreme Rules is that the event features various hardcore-based matches.

Eight matches were contested at the event, including one on the Kickoff pre-show. Four of the main card's matches were contested under a hardcore stipulation. In the main event, Seth Rollins defeated Randy Orton in a Steel Cage match to retain the WWE World Heavyweight Championship. In other prominent matches, Dean Ambrose defeated Luke Harper in a Chicago Street Fight, The New Day (Big E and Kofi Kingston) defeated Cesaro and Tyson Kidd to win the WWE Tag Team Championship, John Cena defeated Rusev in a Russian Chain match to retain the WWE United States Championship, and Roman Reigns defeated Big Show in a Last Man Standing match. This was also the third Extreme Rules event to not feature the titular Extreme Rules match, after the 2009 and 2011 events.

The event was available on the WWE Network in over 140 countries. On pay-per-view, it had 56,000 buys (excluding WWE Network views), down from the previous year's 108,000 buys.