The 1990 SummerSlam was the third annual SummerSlam professional wrestling pay-per-view event produced by the World Wrestling Federation (WWF, now WWE). It took place on August 27, 1990, at The Spectrum in Philadelphia, Pennsylvania. The card consisted of 10 televised matches, including two main events. The Ultimate Warrior successfully defended the WWF Championship against Rick Rude in a Steel Cage match, and Hulk Hogan defeated Earthquake by countout.

The pay-per-view also included two other title matches. Mr. Perfect lost his WWF Intercontinental Championship to the Texas Tornado, who was a substitute for Brutus Beefcake, who had been injured in a real-life parasailing accident. In the other title match, The Hart Foundation (Bret Hart and Jim Neidhart) won the WWF Tag Team Championship from Demolition (Smash and Crush) in a two out of three falls match.