The 1997 Halloween Havoc was the ninth annual Halloween Havoc professional wrestling pay-per-view (PPV) event produced by World Championship Wrestling (WCW). It took place on October 26, 1997, from the MGM Grand Garden Arena in Las Vegas, Nevada.

Halloween Havoc is a professional wrestling event currently produced by WWE. Since 2020, it has been held annually for the company's developmental brand, NXT. As the name implies, it is a Halloween-themed show held in October.