Mandalay Bay is a 43-story luxury resort and casino at the south end of the Las Vegas Strip in Paradise, Nevada. It is owned by Vici Properties and operated by MGM Resorts International. It was developed by Circus Circus Enterprises and completed at a cost of $950 million. It opened on March 2, 1999, on the former site of the Hacienda hotel-casino. MGM acquired Mandalay Bay in 2005, and The Blackstone Group became a co-owner in 2020. Vici acquired MGM's ownership stake in 2022.

The Las Vegas Strip is a stretch of Las Vegas Boulevard in Clark County, Nevada, that is known for its concentration of resort hotels and casinos. The Strip, as it is known, is about 4.2 mi (6.8 km) long, and is immediately south of the Las Vegas city limits in the unincorporated towns of Paradise and Winchester, but is often referred to simply as "Las Vegas".