Oneonta is a city in southern Otsego County, New York, United States. It is one of the northernmost cities of the Appalachian Region. According to the 2010 U.S. Census, Oneonta had a population of 13,901. Its nickname is "City of the Hills." While the word "oneonta" is of undetermined origin, it is popularly believed to mean "place of open rocks" in the Mohawk language. This refers to a prominent geological formation known as "Table Rock" at the western end of the city.
The city is surrounded by the town of Oneonta, a separate municipal and political jurisdiction. Oneonta Municipal Airport is north of the city.