Westmere is a hamlet in the town of Guilderland, Albany County, New York, United States. Since the 1970 Census, a census-designated place (CDP) has been established with the name of Westmere for tabulating the population of what the census has defined as the boundaries for Westmere. The population was 7,284 at the 2010 census. It is a suburb of the neighboring city of Albany. U.S. Route 20 bisects the community and is the major thoroughfare and main street. Along Western Avenue are numerous strip malls, shopping plazas, and commercial buildings, with residential use on the side streets to the north and south. Crossgates Mall, the Capital District's largest shopping mall, is in Westmere's northeastern corner.

Guilderland is a town in Albany County, New York, United States. In the 2020 census, the town had a population of 36,848. The town is named for the Gelderland province in the Netherlands. The town of Guilderland is on the central-northwest border of the county. It is just west of Albany, the capital of the U.S. state of New York.