Berlin /ˈbɜːrlɪn/ is a town in Rensselaer County, New York, United States.

The town of Berlin is located on the eastern border of the county and is often pronounced with an emphasis on the first half of the name.

Berlin is home to the source of the Poesten Kill, which begins at Dyken Pond, in the northwestern corner of the town.

The town now serves primarily as a bedroom community for the Albany, NY capital district, but retains some notable industries.

Like many small communities, Berlin has relied on one or two key employers for economic growth.

Cowee, LLC, a manufacturer of wood products, and the Henry J. Seagroatt Co., a producer and distributor of flowers and supplies.

In neighboring Petersburgh, NY, the high tech industry is represented by Taconic, a worldwide manufacturer of PTFE and dielectric materials.

23.7% of all households were made up of individuals, and 10.2% had someone living alone who was 65 years of age or older.