Chatham /ˈtʃætəm/ is a town in Columbia County, New York, United States.

Contradictory of its current condition or image, Chatham was an industrial center of multiple inter-state rail lines in the early 1900s, including the junction of the Boston and Albany Railroad for connections east and west, the Rutland Railroad for connections to Vermont to the north, and the New York Central's Harlem Line for connections to New York City.

[5] Amtrak service on the Lake Shore Limited passes through, east-west, but does not stop.

In later years Amtrak has planned to build a rail station in Chatham.

[citation needed] The Blinn-Pulver Farmhouse, Melius-Bentley House, Peck House, Riders Mills Historic District, Silvernail Homestead, Simons General Store, Spengler Bridge, St. John's Lutheran Church, James G. Van Valkenburgh House, and John S. Williams House and Farm are listed on the National Register of Historic Places.

25.1% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older.