John Fay (February 10, 1773 Hardwick, Worcester County, Massachusetts – June 21, 1855 Northampton, Fulton County, New York) was an American politician from New York.
Fay attended the common schools for a period of only six months. He removed to New York with his parents, who settled in Montgomery County, and later in Galway, Saratoga County.
In 1804, Fay removed to Northampton, then in Montgomery County. He became a land surveyor and later engaged in agricultural pursuits, milling, and manufacturing. He held various local offices and was Postmaster of Northampton for several years. He was a member from Montgomery County of the New York State Assembly in 1808-09 and 1812.
Fay was elected as a Democratic-Republican to the 16th United States Congress, holding office from March 4, 1819, to March 3, 1821. Afterwards he resumed his former activities. He was a presidential elector on the Democratic James K. Polk ticket in 1844.
He was buried at the Old Presbyterian Church Cemetery in Northampton.
| United States House of Representatives | ||
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| Preceded by John Herkimer |
Member of the U.S. House of Representatives from New York's 14th congressional district 1819 - 1821 |
Succeeded by Alfred Conkling |