George Nelson Kennedy (September 11, 1822 – September 7, 1901) was an American lawyer and politician from New York.
He studied law, was admitted to the bar in 1842, and practiced in Marcellus.
Kennedy entered politics as a Democrat, joined the Free Soil Party in 1848, returned to the Democratic Party, and finally joined the Republican Party upon its foundation.
He was a justice of the New York Supreme Court (5th D.) from 1884 until the end of 1892 when he reached the constitutional age limit and retired from the bench.
He died from "brain disease and Cheyne-Stokes respiration" at his summer residence in Thousand Island Park, and was buried at the Oakwood Cemetery in Syracuse.