William Irving (August 15, 1766 – November 9, 1821) was a United States Representative from New York. Born in New York City, he was a brother of diplomat and author Washington Irving. William completed preparatory studies, engaged in mercantile pursuits, and also in fur trade with the Indians along the Mohawk River, residing at Johnstown and Caughnawaga. He returned to New York City in 1793, and in 1814 was elected as a Democratic-Republican to the Thirteenth Congress to fill the vacancy caused by the resignation of Egbert Benson. He was reelected to the Fourteenth and Fifteenth Congresses and served from January 22, 1814, to March 3, 1819. He supported the war of 1812.
William Irving contributed several essays and poems to Salmagundi, written primarily by Washington Irving and James Kirke Paulding.. William Irving died in New York City on November 9, 1821.
William Irving had four brothers, Peter Irving (1771–1838), Ebenezer Irving (1776–1868), John Treat Irving (1778–1838), and Washington Irving (1783–1859). He was the brother-in-law of James Kirke Paulding, a US Secretary of the Navy. Peter was a member of the New York state assembly.