Samuel Post Davis (April 4, 1850 – March 17, 1918) was a US journalist, politician, and historian. Though primarily a journalist, Davis also wrote poetry, plays, short stories, and humorous sketches. A humorist, he was one of the writers from Nevada associated with the Sagebrush School. Davis also had a political career. He served as Deputy Secretary of State in 1895. He was elected Nevada State Controller in 1898 and again in 1902. Five years later, he was appointed State Industrial and Publicity Commissioner.