Gunsmoke is an American radio and television Western drama series created by director Norman MacDonnell and writer John Meston. The stories take place in and around Dodge City, Kansas, during the settlement of the American West.

The radio version ran from 1952 to 1961 and is commonly regarded as one of the finest radio dramas of all time. The television version ran from 1955 to 1975 and is the second-longest-running prime time fictional program in U.S. television history, its record surpassed only by the Disney anthology television series (which, though essentially the same in every incarnation, has appeared on TV under several titles).

From 1955 to 1961, Gunsmoke was a half-hour show. It then went to an hour-long format for the rest of its run. From 1955 to 1966, it aired in black and white, and from 1966 until it was canceled in 1975, it aired in color. In the early 1960s, older episodes of the series were rebroadcast under the title Marshal Dillon. The series was also known as Gun Law in the UK for the first few seasons