Unadilla
- County:
- Otsego County
- County Seat:
- No
- Area (mi²):
- 1.037
- State:
- New York
Unadilla is a village located in Otsego County, New York. Unadilla has a 2026 population of 1,086. Unadilla is currently growing at a rate of 0.28% annually but its population has decreased by -0.55% since the most recent census, which recorded a population of 1,092 in 2020.