Gallatin is a town in Columbia County, New York, United States. The population at 2020 was 1,628, down from 1,668 at the 2010 census. Gallatin is on the southern border of Columbia County and located 100 miles (160 km) north of New York City.

Columbia County is a county in the U.S. state of New York. At the 2020 census, the population was 61,570. The county seat is Hudson. The name comes from the Latin feminine form of the surname of Christopher Columbus, which was at the time of the formation of the county a popular proposal for the name of the United States. The county is part of the Capital District region of the state.