Cimarron City is an American one-hour Western television series, starring George Montgomery as Matt Rockford and John Smith as Lane Temple, airing on NBC from October 11, 1958, to September 26, 1959. Cimarron City is a boomtown in Logan County, Oklahoma, north of Oklahoma City. Rich in oil and gold, Cimarron City aspires to become the capital of the future state of Oklahoma, to be created in 1907.

George Montgomery was an American actor, best known for his work in Western films and television. He was also a painter, director, producer, writer, sculptor, furniture craftsman, and stuntman. He was married to Dinah Shore and was engaged to Hedy Lamarr.