Bangor is a town in Franklin County, New York, United States.

It is an interior town of the county, located west of Malone.

The town of Bangor is in northwestern Franklin County, bordered by Fort Covington and Westville to the north, Malone to the east, Brandon to the south, Dickinson at Bangor's southwestern corner, Moira to the west, and Bombay at Bangor's northwestern corner.

According to the United States Census Bureau, Bangor has a total area of 43.1 square miles (111.7 km2), all land.

20.7% of all households were made up of individuals, and 10.1% had someone living alone who was 65 years of age or older.