East Nassau is a village in Rensselaer County, New York, United States.

[3] The East Nassau Central School was listed on the National Register of Historic Places in 1997.

[5] According to the United States Census Bureau, the village has a total area of 4.9 square miles (13 km2), all land.

23.6% of all households were made up of individuals, and 9.3% had someone living alone who was 65 years of age or older.

Village trustees are Jeff Root, Lydia Davis, Thomas Kernan, and Nick Atchinson (2022).