Mobile gambling or mobile betting is the activity of gambling/betting achieved through a remote wireless connected device. Examples of such devices are mobile telephones, wireless tablet PCs and other similar technological gadgets.

Online casinos – also known as Internet casinos or virtual casinos – are one of the typical outlets for mobile gambling. Online casinos offer their players a software-downloaded, interactive, 3D, real-time, virtual equivalent of a traditional casino environment. Popular games can include online slots, online poker games, online card games such as blackjack, online scratch cards and online roulette. Mobile gamblers are given the option to play many of these games remotely.

As the activity of online gambling / betting requires contact with the online casino at most times, especially in real-time games such as online poker, mobile gamblers are required to remain within range of a data connection transmitter.

Mobile gambling is one of the most innovative forms of gambling, only very recently developed. Since this is the case, the market for mobile gambling remains nascent rather than fully-developed, and operators are still being scrutinised by licensing and regulatory bodies. The potential for exponential market growth is significant however. Some Asian countries, where gambling has been traditionally very popular, and in which mobile phone ownership is at very high levels, are among the predicted largest growth markets.

Other than online casino games, mobile phone sports betting is also well-known, especially in the UK, with football and horse racing most popular.