Watervliet was a town that at its height encompassed most of present-day Albany County and most of the current town of Niskayuna in neighboring Schenectady County, in the state of New York, United States. Just prior to its dissolution, the town encompassed the current towns of Colonie and Green Island and the city of Watervliet.

Niskayuna is a town in Schenectady County, New York, United States. The population was 23,278 at the 2020 census. The town is located in the southeast part of the county, east of the city of Schenectady, and is the easternmost town in the county.