The 2000 Unforgiven was the third annual Unforgiven professional wrestling pay-per-view (PPV) event produced by the World Wrestling Federation (WWF, now WWE). It took place on September 24, 2000, at the First Union Center in Philadelphia, Pennsylvania. Eight matches were contested at the event.

The main event was a Fatal Four-Way match for the WWF Championship. The Rock defended the title against Chris Benoit, The Undertaker, and Kane. Benoit originally won the match by pinning Undertaker but since Undertaker's foot was on the rope and the referee did not notice it, the match was restarted and Rock pinned Benoit after a Rock Bottom to retain the title.

The undercard featured Triple H versus Kurt Angle in a No Disqualification match with WWF Commissioner Mick Foley serving as special guest referee, Eddie Guerrero versus Rikishi for the WWF Intercontinental Championship, Edge and Christian versus The Hardy Boyz (Matt Hardy and Jeff Hardy) in a Steel Cage match for the WWF Tag Team Championship, Chris Jericho versus X-Pac, a 10-Minute Hardcore Battle Royal for the WWF Hardcore Championship, Tazz versus Jerry Lawler in a Strap Match, and Right to Censor (Steven Richards, Val Venis, Bull Buchanan, and The Goodfather) versus The Dudley Boyz (Bubba Ray Dudley and D-Von Dudley) and The Acolytes Protection Agency (Faarooq and Bradshaw) in an eight-man tag team match.

This event also marked the return of Stone Cold Steve Austin after a ten-month absence, with the exception of his appearances at Backlash as well as Raw is War and SmackDown! episodes building into the late April pay-per-view.