A casino (plural: casinos) is a building or room where people can gamble on games of chance. The games usually involve a random number generator, though some have an element of skill. Players may place cash or other items on the outcome of a game, and winning players receive prizes. Casinos are regulated by government agencies. Some countries have legalized gambling, while others prohibit it or restrict it to certain types of activities.

The word casino can also refer to the gaming equipment used in a particular establishment. It can also refer to a place where gambling takes place, such as the three-floor, world-famous Empire Casino in Leicester Square. Many travelers seek out casinos in their travels, while others accidentally stumble upon them and have a good time.

In modern casinos, security is an essential consideration. Many have catwalks above the tables that allow surveillance personnel to look down on the table and machine operations. Most casinos also have cameras throughout the facility, and some even use infrared scanners to identify cheating.

In the United States, casinos are typically located on American Indian reservations or in other areas not subject to state antigambling laws. Most casinos feature a variety of table games, with the most popular being blackjack and roulette. In addition to these traditional games, some casinos also feature electronic versions of these classics. Some of these machines are operated by live dealers, while others are automated. Some casinos also offer a variety of card games, including baccarat, chemin de fer, and trente et quarante.