| Belvoir, Virginia | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Virginia Northern#USA Virginia#USA |
| Pushpin Label: | Belvoir |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location within the state of Virginia |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Virginia |
| Subdivision Type2: | County |
| Subdivision Name2: | Fauquier |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 38.6575°N -77.7169°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 20189 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Belvoir is a small, unincorporated community in Fauquier County, Virginia. It is situated between the towns of Marshall and The Plains. It is off US Route 17, at the crossroads of the John Marshall Highway (State Route 55), Zulla Road (State Route 709), and Belvoir Road (State Route 709). Because of the development of Marshall and The Plains, Belvoir as a hamlet has lost local relevance. The area is usually referred to as The Plains because it shares its ZIP Code of 20189.