Chatham
- County:
- Columbia County
- County Seat:
- No
- Area (mi²):
- 1.237
- State:
- New York
Chatham is a village located in Columbia County, New York. Chatham has a 2026 population of 1,547. Chatham is currently declining at a rate of -0.96% annually and its population has decreased by -3.49% since the most recent census, which recorded a population of 1,603 in 2020.