Louis Hasbrouck (April 22, 1777 - August 20, 1834) was an American lawyer and politician from New York.
Then he studied law with Josiah Ogden Hoffman in New York City, was admitted to the bar in 1801 and commenced practice in Ogdensburgh.
He was a member of the New York State Assembly (St. Lawrence Co.) in 1814, noted as being the sole resident slaveholder from Ogdensburgh and a British sympathizer during the war of 1812.
His father was a Lieutenant Colonel in the United States Army during the Revolutionary War, and then served as Brigadier General of the 3rd Ulster County Regiment of New York from 1784-1787.
On December 29, 1802 in New Paltz, he married Catherine Banks (1778–1862), and they had at least six children: His first cousin was Abraham Bruyn Hasbrouck.