Extreme Rules (2009) was a professional wrestling pay-per-view event produced by World Wrestling Entertainment (WWE), which took place on June 7, 2009, at the New Orleans Arena in New Orleans, Louisiana. It was presented by AT&T. It was the first event promoted under the Extreme Rules name, and initially noted by WWE to be a direct continuation of the One Night Stand chronology. It featured talent from the Raw, SmackDown, and ECW brands. There were eight matches scheduled on the event's card, though nine actually took place.

The main event was a Ladder match for the World Heavyweight Championship, which saw Jeff Hardy defeat the reigning champion Edge to win the title. After the match, CM Punk cashed in his Money in the Bank contract, which guaranteed him a title match at the time and place of his choosing, and defeated Hardy for his newly won title. There were also two other highly publicized matches; the first was a steel cage match for the WWE Championship between the champion Randy Orton and Batista, as well as a submission match between The Big Show and John Cena. Featured matches on the undercard included a No Holds Barred match between Rey Mysterio and Chris Jericho for the WWE Intercontinental Championship, CM Punk versus Umaga in a Samoan Strap match and a Triple Threat Hardcore match for the ECW Championship. The event had 213,000 buys, up from the One Night Stand 2008 figure of 194,000 buys. Extreme Rules 2009 also holds the record for the most championships changed in a single pay-per-view with 5 title changes; (Women's, Intercontinental, ECW, and WWE Championships changed hands once, and the World Heavyweight Championship changed hands twice.)