Oneida is a town in Scott County, Tennessee, United States.

Oneida is known for its proximity to the Big South Fork National River and Recreation Area.

As of the 2020 United States census, there were 3,787 people, 1,661 households, and 1,115 families residing in the town.

As of the census[6] of 2000, there were 3,615 people, 1,588 households, and 986 families residing in the town.

35.5% of all households were made up of individuals, and 14.5% had someone living alone who was 65 years of age or older.