The 2006 Unforgiven was the ninth 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 17, 2006, at the Air Canada Centre in Toronto, Ontario, Canada.

The main event was a Tables, Ladders, and Chairs match for the WWE Championship between Edge and John Cena, which Cena won after retrieving the belt suspended above the ring. One of the predominant matches on the card was D-Generation X (DX) (Triple H and Shawn Michaels) versus The Big Show, Vince and Shane McMahon in a Handicap Hell in a Cell match. Triple H and Michaels won the match after Triple H pinned Vince following a sledgehammer shot to his back. Another primary match on the undercard was Lita versus Trish Stratus for the WWE Women's Championship in what was Stratus' final match of her full-time wrestling career. Stratus won the match after forcing Lita to submit to the sharpshooter, thus becoming a record setting seven time WWE Women's Champion.

As many of the existing feuds ended following the event, some did not. Notably, Jeff Hardy continued to feud with Johnny Nitro, facing off against him for the WWE Intercontinental Championship throughout September. The feud between DX and The McMahons ended after the event, as DX began an angle with Edge and Randy Orton. Following his win against Edge, Cena began an angle with Kevin Federline, which started the following month at Cyber Sunday and lasted throughout the year.