Frank Hamilton Spearman (September 6, 1859 – December 29, 1937) was an American author.
He was known for his books in the Western fiction genre and especially for his fiction and non-fiction works on the topic of railroads.
Although he wrote prolifically about railroads, his actual career was that of a bank president in McCook, Nebraska and did not himself work for a railroad. Spearman was also a devout Roman Catholic convert and held political views best described as proto-libertarian, both of which beliefs are also reflected in his novels.
His western novel Whispering Smith was made into a movie on six separate occasions, three silent films in 1915, 1926, and 1927, with later versions in 1935, 1948 and 1951. In 1961, NBC aired twenty episode of the television series Whispering Smith, starring Audie Murphy, a film star and World War II hero in the title role, and Guy Mitchell as detective George Romack.