The 2017 NXT TakeOver: WarGames (originally NXT TakeOver: Houston) was the 17th NXT TakeOver and inaugural NXT WarGames professional wrestling livestreaming event produced by WWE. It was held exclusively for wrestlers from the promotion's NXT brand division. The event aired exclusively on the WWE Network and took place on November 18, 2017, at the Toyota Center in Houston, Texas as part of that year's Survivor Series weekend. The event's name is derived from the match of the same name that was originally used in the National Wrestling Alliance and later, World Championship Wrestling.

Five matches were contested at the event. In the main event, The Undisputed Era (Adam Cole, Bobby Fish, and Kyle O'Reilly) defeated Sanity (Alexander Wolfe, Eric Young, and Killian Dain) and the team of The Authors of Pain (Akam and Rezar) and Roderick Strong in a WarGames match. On the undercard, Ember Moon defeated Kairi Sane, Nikki Cross, and Peyton Royce in a fatal four-way match to win the vacant NXT Women's Championship, and Andrade Cien Almas defeated Drew McIntyre to win the NXT Championship.

During the NXT TakeOver: Philadelphia pre-show, TakeOver: WarGames won the NXT Year-End Award for "NXT TakeOver of the Year".