John Blake Jr. (December 5, 1762 – January 13, 1826) was an American slave owner,[1] lawyer, and politician and a U. S. Representative from New York.

Born in Ulster County in the Province of New York, Blake attended the public schools and during the Revolutionary War Blake served in the New York State Militia.

He served as judge of the Orange County Court of Common Pleas from 1815 to 1818.

He was a presidential elector in 1816, voting for James Monroe and Daniel D. Tompkins.

Again serving in the State assembly in 1819, Blake was then supervisor of the town of Montgomery for fifteen terms.