John Miller (November 10, 1774 – March 31, 1862) was an American physician and politician from New York.
From 1793 on, he studied medicine, first with an uncle, then with Dr. Moshier in Easton, New York.
Miller was licensed to practice medicine by the Vermont Medical Society in 1800, the law on licensing physicians not being enacted yet in the State of New York.
In 1805, he married Phoebe (1779–1838), and they had eight children, among them Charles Miller MD (1816–1854).
He was a founding member of the Cortland County Medical Society in 1808, and was its first Vice President.