A casino is a facility for certain types of gambling. In addition to gaming tables, some casinos host entertainment events such as concerts and stand-up comedy acts, and serve food and drink. Most casinos are located in tourist destinations and serve as a focal point for entertainment, but some operate independently. In the United States, there are more than 30 state-licensed and regulated casinos. Some are operated by American Indian tribes, which are not subject to state antigambling laws. In addition, a number of cities have casinos and are known for them, most notably Las Vegas, New Jersey and Chicago.

The word casino derives from the Italian city of Casin, which was the home of a card game called baccarat. From there, the term spread to other European countries. In the United States, the first legal casino opened in Atlantic City in 1978. From the 1980s onwards, more and more casinos opened as more states relaxed their antigambling statutes. Today, the majority of American casinos are found in Las Vegas.

Casinos are a popular form of gambling and have been around for centuries. The games that are offered at these establishments include poker, blackjack, roulette, and more. While the house edge varies between different casino games, it is typically in the favor of the casino. Because of this, it is very rare for a player to walk away from a casino with more money than they entered with, and casinos are able to make large profits on small bets.