Mayhem was a professional wrestling pay-per-view (PPV) produced by World Championship Wrestling (WCW) in the month of November in 1999 and 2000. It replaced the promotion's November PPV event World War 3 which was held from 1995 to 1998 and is noted for being the first wrestling pay-per-view named after a video game, rather than the video game named after a pay-per-view. The 1999 match between Bret Hart vs Chris Benoit appeared in the opening credits of the TV Show Malcolm in the Middle.
Since 2001, the rights to the event are owned by WWE. In 2015, all WCW pay-per-views were made available on the WWE Network.