SummerSlam is a professional wrestling event produced by World Wrestling Entertainment (WWE) and is held every year at the end of August. Along with WrestleMania, Royal Rumble and Survivor Series, SummerSlam is one of WWE's "Big Four" pay-per-views featureing several professional wrestling matches that involve different wrestlers from pre-existing scripted feuds and storylines.

The 2009 SummerSlam takes place on August 23, 2009, 8pm ET/5pm PT, at the Staples Center in Los Angeles, California.

Main event is the World Heavyweight Championship (TLC Match) between CM Punk and Jeff Hardy.

Other matches include:
D-Generation X vs. The Legacy 
WWE Champion Randy Orton vs. John Cena 
World Heavyweight Champion Jeff Hardy vs. CM Punk 
Intercontinental Champion Rey Mysterio vs. Dolph Ziggler 
ECW Champion Christian vs. William Regal 
Cryme Tyme vs. Unified Tag Champions Chris Jericho & Big Show 
The Great Khali vs. Kane 
Jack Swagger vs. MVP