Truman Boardman (February 7, 1810 – April 21, 1895) was an American farmer and politician from New York.
Truman Boardman was born in that part of the Town of Ovid, in Seneca County, New York, which was separated in 1817 as the Town of Covert.
On June 5, 1834, he married Aurelia Chloe Whiting (1810–1893), and they had four children.
He was a member of the New York State Assembly (Tompkins Co.) in 1881.
His brother, Supreme Court Justice Douglas Boardman (1822–1891), was the first Dean of Cornell Law School, and lived in the Boardman House (Ithaca, New York).