Season 0 of Gunsmoke premiered on September 26, 1987.

Season 1 of Gunsmoke premiered on September 10, 1955.

This is a list of episodes from the first season of the television series version of Gunsmoke.

Season 2 of Gunsmoke premiered on September 8, 1956.

Season 3 of Gunsmoke premiered on September 14, 1957.

Season 4 of Gunsmoke premiered on September 13, 1958.

Season 5 of Gunsmoke premiered on September 5, 1959.

Season 6 of Gunsmoke premiered on September 3, 1960.

Season 7 of Gunsmoke premiered on September 30, 1961.

Season 8 of Gunsmoke premiered on September 15, 1962.

Season 9 of Gunsmoke premiered on September 28, 1963.

Season 10 of Gunsmoke premiered on September 26, 1964.

Season 11 of Gunsmoke premiered on September 18, 1965.

Season 12 of Gunsmoke premiered on September 17, 1966.

Season 13 of Gunsmoke premiered on September 11, 1967.

Season 14 of Gunsmoke premiered on September 23, 1968.

Season 15 of Gunsmoke premiered on September 22, 1969.

Season 16 of Gunsmoke premiered on September 14, 1970.

Season 17 of Gunsmoke premiered on September 13, 1971.

Season 18 of Gunsmoke premiered on September 11, 1972.

Season 19 of Gunsmoke premiered on September 10, 1973.

Season 20 of Gunsmoke premiered on September 9, 1974.