The 2023 NXT: Halloween Havoc was a two-part professional wrestling television special produced by WWE.

The two-night event took place on October 24 and 31, 2023, at the WWE Performance Center in Orlando, Florida and aired as special episodes of NXT on the USA Network.

The 2024 edition also returned to livestreaming, thus the 2023 event was the final to air on the USA Network as the NXT program is moving to The CW in October 2024.

In the main event of Night 1, Lyra Valkyria defeated Becky Lynch to win her first NXT Women's Championship.

Night 1 was also notable for the NXT in-ring debut of Lexis King (formerly known as Brian Pillman Jr. in All Elite Wrestling).

In the main event of Night 2, Ilja Dragunov defeated Carmelo Hayes to retain the NXT Championship.

Rock band New Years Day also performed their songs, "Vampyre" and "Hurts Like Hell", to open Night 1 and 2, respectively.

On the October 3 episode of NXT, Lyra Valkyria defeated Roxanne Perez and Indi Hartwell in a triple threat match to become the number one contender for Becky Lynch's NXT Women's Championship during Week 1 of Halloween Havoc.

[9] On the September 5 episode of NXT, Bron Breakker severely injured Von Wagner after crushing his skull with steel steps.

[15] On the October 17 episode of NXT, Mr. Stone stated that Wagner has a long way to go in his recovery and took issue with Breakker's lack of remorse.

[11] On the October 17 episode of NXT, Fallon Henley was giving advice to competitors in the NXT Women's Breakout Tournament before being interrupted by Tiffany Stratton, who mentioned she defeated Henley to advance to the finals in the previous year's tournament.

[16] In a digital exclusive on the October 16 episode of Raw, "Dirty" Dominik Mysterio interrupted an interview with Nathan Frazer, who wanted a match for the NXT North American Championship, but Mysterio declined, saying Frazer didn't deserve a title match.

Green threatened to file a formal complaint and asked to be directed to Shawn Michaels's office.

Hail and Jayne offered to take them there and ask for a match for the WWE Women's Tag Team Championship against Green and Niven, which was scheduled for Week 2 of Halloween Havoc.