Oneida is an unincorporated community and census-designated place (CDP) in Clay County, Kentucky, United States. Its population was 410 at the 2010 census. It is the home of Oneida Baptist Institute, World Animal Foundation and Monkey Hollow Wildlife Sanctuary. Goose Creek and the Red Bird River confluence to form the South Fork of the Kentucky River a few hundred yards from the center of the town.
The major road that leads from the center of town to the Leslie County line is called "Bullskin".