Greenwich is a town in the southwestern part of Washington County, New York, United States.

[8] The Horicon tribe is believed to be part of the early native population of the town.

The town was originally part of five land patents: Saratoga, Kettlehuyn, Cuyler, Campbell, and Argyle.

A historical marker was placed in Mowry Park detailing the locations of former safe houses.

The western town line is defined by the Hudson River, with Saratoga County on the opposite shore.

NY 29 is an east–west highway located near the southern town line and Batten Kill River.

[13] Small areas of Greenwich fall within the Schuylerville, Argyle, and Salem Central school districts.

[4] The school district is currently ranked #1,756 in the country according to U.S. News & World Report in 2014 earning a Silver medal award.

[2] The Adirondack School of Northeastern New York provides private secondary education for grades 7 through 12.