Cheyenne is an American Western television series of 108 black-and-white episodes broadcast on ABC from 1955 to 1962. The show was the first hour-long Western, and was the first hour-long dramatic series of any kind, with continuing characters, to last more than one season. It was also the first series to be made by a major Hollywood film studio which did not derive from its established film properties, and the first of a long chain of Warner Bros. original series produced by William T. Orr.

Television Westerns are programs with settings in the later half of the 19th century in the American Old West, Western Canada and Mexico during the period from about 1860 to the end of the so-called "Indian Wars". More recent entries in the Western genre have used the neo-Western subgenre, placing events in the modern day, or the space Western subgenre but still draw inspiration from the outlaw attitudes prevalent in traditional Western productions.