Sin was a professional wrestling pay-per-view event produced by World Championship Wrestling that replaced WCW's January PPV event, Souled Out. Sin was the third to last WCW PPV before the company was bought by the World Wrestling Federation. It took place on January 14, 2001 from the Conseco Fieldhouse in Indianapolis, Indiana.

The main event was for the WCW World Heavyweight Championship between Scott Steiner, Sid Vicious, Jeff Jarrett, and Animal in a Four Corners match. The WCW champion heading into Sin was Scott Steiner, who retained the title after pinning Sid Vicious who had fractured his leg after attempting an aerial attack. The main match on the undercard was between Totally Buffed and Goldberg and DeWayne Bruce, in a match where if Goldberg lost, he would be forced to retire. Totally Buffed won the match when Lex Luger pinned Goldberg after a Buff Blockbuster from Bagwell with Goldberg on Luger's shoulders. As a result, Goldberg was forced to retire. The rights to WCW Sin now belong to World Wrestling Entertainment.