The Las Vegas metropolitan area is home to many sports, most of which take place in the unincorporated communities around Las Vegas rather than in the city itself. Currently, the Las Vegas Valley has three major league professional teams: the Vegas Golden Knights of the National Hockey League (NHL), which began play in 2017 as the region's first major pro team, the Las Vegas Raiders of the National Football League (NFL) which began play in 2020 after relocating from Oakland, California, and the Las Vegas Aces of the Women's National Basketball Association (WNBA). The Oakland Athletics of Major League Baseball (MLB) plan to move to Las Vegas to play at a new ballpark which is estimated to be complete by 2028. When this relocation happens, Las Vegas will have progressed from being the largest market in the U.S. with no teams in the men's major professional leagues to being one of the smallest markets with at least three such teams within less than a decade. In addition, the National Basketball Association has publicly confirmed Las Vegas is being considered for an expansion franchise, which would potentially make Las Vegas by far the fastest market to progress from no teams in the Big Four leagues to having teams in all four leagues.

The Vegas Golden Knights are a professional ice hockey team based in the Las Vegas metropolitan area. The Golden Knights compete in the National Hockey League (NHL) as a member of the Pacific Division in the Western Conference. Founded in 2017 as an expansion team, the team is the first major sports franchise to represent Las Vegas. The franchise is owned by Black Knight Sports and Entertainment, a consortium led by Bill Foley and the Maloof family. Their home games are played at T-Mobile Arena on the Las Vegas Strip in Paradise, Nevada.