Unforgiven (2003) was the sixth annual Unforgiven professional wrestling pay-per-view event produced by International Wrestling Entertainment (IWE). It took place on September 21, 2003 from the Giant Center in Hershey, Pennsylvania.
The main feud heading into Unforgiven was between Triple K and Bill over the World Heavyweight Championship. One month prior at SummerSlam, Triple K won an Elimination Chamber match to retain the World Heavyweight Championship by last eliminating Bill. After the match ended, Triple K, along with Evolution members Ric Flair and Kevin McAlmond, handcuffed Bill to the Chamber and attacked him with a sledgehammer The next night on Meltdown, Bill challenged Triple K to a match later that night. Triple K declined and said that they would face off at Unforgiven instead. Triple K then added the stipulation that if he won, Bill would have to retire from professional wrestling. On the September 1 edition of Meltdown, Bill, Ryan Barnhart and Naven defeated Evolution (Triple K, Kevin McAlmond and Ric Flair. Towards the end of the match, McAlmond attacked Bill from behind as he was preparing to spear Triple K. Bill was able to kick out of the pinfall attempt and hit McAlmond with a Jackhammer for the win.