The 2018 Crown Jewel was a professional wrestling event produced by the American company WWE. It was the inaugural Crown Jewel and took place on November 2, 2018, at the King Saud University Stadium in Riyadh, Saudi Arabia. It aired via pay-per-view (PPV) and livestreaming and featured wrestlers from the promotion's Raw and SmackDown brand divisions.

It was the second event WWE held in Saudi Arabia under a 10-year partnership in support of Saudi Vision 2030, after the Greatest Royal Rumble in April, and it hosted the first-ever WWE World Cup tournament. The event marked the final match of Shawn Michaels, who had retired from active in-ring competition at WrestleMania XXVI in 2010, though returned for a one-off match at this event, and the return of Hulk Hogan—who had not appeared on WWE programming since a 2015 scandal—who served as the event's host. The event also marked the final time that The Undertaker and Kane teamed together as The Brothers of Destruction.

Twelve matches were contested at the event, including one on the Kickoff pre-show. In the main event, D-Generation X (Triple H and Shawn Michaels) defeated The Brothers of Destruction (The Undertaker and Kane). In the penultimate match, Shane McMahon defeated Dolph Ziggler to win the WWE World Cup. In other prominent matches, The Bar (Cesaro and Sheamus) retained the SmackDown Tag Team Championship against The New Day (represented by Big E and Kofi Kingston), AJ Styles defeated Samoa Joe to retain SmackDown's WWE Championship, and Brock Lesnar defeated Braun Strowman to win Raw's vacant Universal Championship.

Due to the controversy surrounding the killing of Jamal Khashoggi as well as accusations against Saudi Arabia for severe human rights abuses, leading a war of attrition in Yemen and suppressing women's rights, WWE faced harsh criticism for producing the event and was asked to stop its business ventures in Saudi Arabia by multiple parties. The controversy also led to the company's top babyfaces at the time, John Cena and Daniel Bryan, boycotting the show. The event itself was met with generally negative reviews, especially the main event, the Universal Championship match, and the World Cup final. This event did not get a home video release, but it is available to stream on the WWE Network.