Clay Tallman was a Democratic politician from the U.S. State of Nevada.

He was Commissioner of the United States General Land Office from 1913 to 1921.

[3] Tallman was appointed Commissioner on May 27, 1913, by Woodrow Wilson.

[4] He was also chairman of the Democratic State Central Committee of Nevada, and was his party's candidate for the United States House of Representatives in 1912.

[4] Tallman was confirmed by the United States Senate, and was commissioned June 5, 1913.