Gaming law is generally the law that applies to the gaming or gambling industry, including casinos, lotteries, horse racing, dog racing, sports betting, card games, table games, social gambling, bingo, raffles, slot machines, scratch tickets, etc. Gaming law includes state and federal statutes, rules, and regulations—and legal principles from traditional areas of law, such as contract law, administrative law, constitutional law, criminal law, and regulatory law. For example, the federal statute prohibiting illegal gambling businesses is located at 18 U.S.C. §1955.

In Maryland, gaming law encompasses the regulation of various forms of gambling, including casinos, lotteries, horse racing, sports betting, and other gaming activities. The Maryland Lottery and Gaming Control Agency is the primary regulatory body overseeing the state's gaming industry. Casinos in Maryland are allowed to offer a variety of games, including slot machines, table games, and poker. The state also permits wagering on horse races at licensed racetracks and through off-track betting facilities. Sports betting became legal in Maryland after the passage of a 2020 referendum, with regulations being developed for both retail and online sports wagering. The Maryland State Lottery and Gaming Control Commission is responsible for issuing licenses and ensuring compliance with state gaming laws. Additionally, charitable gaming activities such as bingo and raffles are permitted under specific conditions. All gaming operations are subject to state statutes, and operators must adhere to federal laws such as the prohibition of illegal gambling businesses under 18 U.S.C. §1955. It is important for entities involved in gaming to comply with both state and federal regulations to avoid legal issues.