Vardis Alvero Fisher (March 31, 1895 – July 9, 1968) was a writer best known for his popular historical novels of the Old West. He also wrote the monumental 12-volume Testament of Man (1943–1960) series of novels, depicting the history of humans from cave to civilization. It was considered controversial because of his portrayal of religion, especially the Judeo-Christian tradition, emphasis on sexuality, and conclusions about anthropology.