Hiram Pease Graham (March 29, 1820 – January 24, 1902) was an American businessman, Democratic politician, and Wisconsin pioneer.
He was the first mayor of Eau Claire, Wisconsin, and was an important investor in the development of the city, being one of the founders of the Phoenix Manufacturing Company.
After a few years working for the Eau Claire Lumber Company, Graham bought a planing mill in 1861 in partnership with his brother-in-law, Robert Tolles.
[1] Graham received his first public office in May 1861 when he was appointed surveyor general of his area of the state by governor Alexander Randall.
He represented Wisconsin's 30th Senate district, which then comprised all of Chippewa, Dunn, Eau Claire, and Pepin counties.