The 2003 Unforgiven was the sixth annual Unforgiven professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE). It was held exclusively for wrestlers from the promotion's Raw brand division. The event took place on September 21, 2003, at the Giant Center in Hershey, Pennsylvania. The venue did not receive another major live event until Halloween Havoc in 2024 albeit in livestreaming form.

Nine professional wrestling matches were contested at this event. The main event was Triple H versus Goldberg for the World Heavyweight Championship. Goldberg won the match and the World Heavyweight Championship after pinning Triple H following a spear and a Jackhammer. Two of the predominant matches on the card were a Triple threat match for the WWE Intercontinental Championship between Christian, Chris Jericho and Rob Van Dam, which Christian retain the title by pinning Van Dam after hitting him with the belt, and the other was a Last Man Standing match between Shane McMahon and Kane, which Kane won after Shane failed to answer the referee's ten count. Another primary match on the undercard was Randy Orton versus Shawn Michaels, which Orton won by pinfall after hitting Michaels in the head with a pair of brass knuckles.