Belle Haven is a census-designated place (CDP) in Fairfax County, Virginia, United States. Nearby CDPs are Huntington, Virginia (west), Groveton, Virginia (southwest) and Fort Hunt, Virginia (south). The population was 6,518 at the 2010 census.
The CDP is located just south of Old Town Alexandria and bounded on the west by Richmond Highway (U.S. 1) and on the east by the Potomac River. It encompasses Belle Haven, a wealthy subdivision dating from the 1920s, and several adjoining neighborhoods. Some, particularly New Alexandria and Belle View, are among the lowest-lying residential areas of Fairfax County, and sustained extensive flood damage from storms including 2003's Hurricane Isabel and 1972's Hurricane Agnes. The Belle View branch of the Alexandria Post Office is located here, and serves the 22307 ZIP code in which the majority of the CDP falls.