William H Hammett

William Henry Hammett (March 25, 1799 – July 9, 1861) was a U.S. Representative from Mississippi.

Born in Don Manway, County Cork, Ireland, Hammett studied theology. Chaplain of the University of Virginia at Charlottesville 1832–1834 and of the State house of delegates. He moved to Princeton, Mississippi.

Hammett was elected as a Democrat to the Twenty-eighth Congress (March 4, 1843 – March 3, 1845). He died July 9, 1861, in Washington County, Mississippi.