George Payson Barker (October 25, 1807 in Rindge, Cheshire County, New Hampshire – January 27, 1848 in Buffalo, Erie County, New York) was an American lawyer and politician.
He attended Amherst College from 1823 to 1826, and then entered Union College from which he graduated in 1827. While in college, he studied law with Alonzo C. Paige at Schenectady, New York, after graduating he studied law with Stephen G. Austin at Buffalo, and was admitted to the bar in 1830. He practiced law in partnership with Austin until 1832, then with John T. Hudson until 1836. In 1834, he married Abby Coit. From 1837 to 1839, he practiced law with Seth E. Sill and Seth C. Hawley, then with Sill only until July 1847, and finally with George Coit, Jr.
In 1828, he entered politics joining the Jacksonians, and later becoming a Democrat. In June 1829, he was appointed Clerk of the Village of Buffalo. In 1831 he ran for the Assembly, but was defeated by the Anti-Masonic candidates. In 1832, he was appointed first Attorney of the City of Buffalo, later District Attorney of Erie County which office he resigned in December 1836. In 1834, he ran for Congress but was defeated by the Anti-Masonic candidate Thomas C. Love.
He was a member from Erie County of the New York State Assembly in 1836. On January 31, 1838, he was commissioned a captain in the New York State Militia, on February 12 he was elected a major, on August 14 a lieutenant colonel, and in June 1839 brigadier general of the 8th Brigade, retiring from the militia when he was elected Attorney General in 1842. In 1840, he ran for Mayor of Buffalo, New York, but was defeated by the Whig candidate Sheldon Thompson in a close race: 1135 for Thompson, 1125 for Barker. He was New York State Attorney General from 1842 to 1845. From 1846 to 1847, he was again District Attorney of Erie County.
 Political Graveyard
 Mayors of Buffalo
Google Book Life of George P. Barker by George J. Bryan (Oliver G. Steele, Buffalo NY, 1849)
New York State Attorney General
John Van Buren
Attorneys General of New York
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