George Payson Barker (October 25, 1807 – January 27, 1848) was an American lawyer and politician.

Barker was born on October 25, 1807, in Rindge, Cheshire County, New Hampshire.

[1] 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.

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.[3] In 1828, he entered politics joining the Jacksonians, and later becoming a Democrat.

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.