Troy is an unincorporated community in Fluvanna County, Virginia, United States. It lies just west of U.S. Route 15, between Zion Crossroads to the north and the county seat of Palmyra to the south. Troy's existence was defined by the Virginia Air Line Railway, which operated from 1908 to 1975. In 1998, the Virginia Department of Corrections opened the Fluvanna Correctional Center for Women in the area.

Fluvanna County is a county located in the Piedmont region of the Commonwealth of Virginia, United States. As of the 2020 census, the population was 27,249. Its county seat is Palmyra, while the most populous community is the census designated place of Lake Monticello.