WrestleMania X-Seven (also known as WrestleMania 17) was the 17th annual WrestleMania professional wrestling pay-per-view (PPV) event produced by the World Wrestling Federation (WWF). It took place on April 1, 2001, at the Reliant Astrodome in Houston, Texas. It was the first WrestleMania held in the state of Texas. Twelve matches were contested at the event, including one broadcast exclusively on the Sunday Night Heat pre-show.

The main event was a No Disqualification match between The Rock and "Stone Cold" Steve Austin for the WWF Championship. The undercard included Triple H versus The Undertaker, the second Tables, Ladders, and Chairs match for the WWF Tag Team Championship and a Street Fight between Vince McMahon and Shane McMahon with Mick Foley as special guest referee.

A record-breaking attendance for the Reliant Astrodome of 67,925 grossed US$3.5 million. Many in professional wrestling considered WrestleMania X-Seven to be the pinnacle of the company's famous Attitude Era, similar to how WrestleMania III was the pinnacle of the 1980s wrestling boom. The WWF bought out rival competition World Championship Wrestling (WCW) the week prior. In addition to its commercial success, the event has received acclaim from critics and fans, and is often regarded as the greatest WrestleMania of all time, and the greatest professional wrestling pay-per-view event ever produced.