SummerSlam (2007) was the twentieth annual SummerSlam professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE). It was presented by THQ's Stuntman Ignition. It took place on August 26, 2007, at the Continental Airlines Arena in East Rutherford, New Jersey and featured talent from each of WWE's three brands: Raw, SmackDown!, and ECW. Tickets for SummerSlam went on sale December 30 and sold out in forty minutes.

The main feud, a staged rivalry between wrestlers, heading into the event from the Raw brand was between John Cena and Randy Orton. On the July 23 episode of Raw, Jonathan Coachman announced Orton as the number one contender to the WWE Championship. Over the proceeding weeks, Orton provoked Cena by interfering and attacking him during his matches. From SmackDown, the predominant feud was between The Great Khali and Batista. After Khali defeated Batista and Kane in a Triple Threat match, a match between three wrestlers contested under standard rules,Theodore Long booked Khali to defend the World Heavyweight Championship against Batista at SummerSlam. The primary feud from ECW was between John Morrison and CM Punk. By defeating Morrison in a 15 Minutes of Fame match, Punk became the number one contender to the ECW Championship at SummerSlam.