A casino is an establishment for certain types of gambling. It may also be known as a gaming house, a gambling joint, or a club. In modern usage, the term is almost always used to refer to a large building that contains a number of gambling tables and machines. In the United States, casinos are regulated by state and federal laws. Casinos are sometimes combined with hotels, restaurants, retail shops or other attractions. They usually offer table games like poker, blackjack, and roulette, as well as slot machines. They may also have live entertainment such as shows or concerts. Most modern casinos have security measures to prevent cheating and theft, both from players and employees.

In the United States, there are over 1,000 casinos. The majority are located in Nevada, with the largest concentration in Las Vegas. Other major casino destinations include Atlantic City and Chicago. Many casinos are owned by Indian tribes, and some are located on land that is leased or sold to them by the government. The number of casinos is expected to grow as more states legalize them.

The Dallas Cowboys, a professional American football team, have formed a partnership with the WinStar World Casino and Resort in Oklahoma. This is the first time that an NFL team has a casino sponsorship. This is in response to the US Supreme Court ruling that overturned the 1992 federal ban on sports betting and allowed individual states to make their own decisions about the matter.