Lyndonville
- County:
- Orleans County
- County Seat:
- No
- Area (mi²):
- 1.024
- State:
- New York
Lyndonville is a village located in Orleans County, New York. Lyndonville has a 2026 population of 777. Lyndonville is currently declining at a rate of -0.26% annually and its population has decreased by -1.77% since the most recent census, which recorded a population of 791 in 2020.