Windham is a hamlet and census-designated place in the town of Windham, Greene County, New York, United States. The population of the CDP was 371 at the 2020 census, out of a total of 1,708 people in the town. The community of Windham is in the western part of the town, on Route 23. It was formerly known by several other names, including "Batavia", "Osbornville", and "Windham Center".