Walter John Coburn (October 23, 1889 – May 1971) was an American writer of Westerns. Coburn was born in White Sulphur Springs, Montana Territory, the son of Robert Coburn Senior, the founder of the noted Circle C Ranch located south of Malta. Coburn served in the Army aviation corps during the World War I era. He later spent time as a cowboy and a surveyor, before becoming a full-time writer in the 1920s.