Jordanville is a hamlet in the town of Warren, Herkimer County, New York. Jordanville is in the northwest part of Warren, at the intersection of New York State Route 167 and County Route 155. The community was settled by European Americans after the Revolutionary War and before 1791. Its name was derived from the nearby Ocquionis Creek, which was used by settlers for baptisms and likened by them to the Jordan River.