Annandale-on-Hudson is a hamlet in Dutchess County, New York. It is in the town of Red Hook.
Primarily, the land here is owned by Bard College. There are a few private residences and some small businesses. Undeveloped land is controlled by the New York State Department of Environmental Conservation.
The economy is centered around the college. Historical houses on campus include the Blithewood mansion and the Manor Estate.