| Callaghan, Virginia | |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Virginia#USA |
| Pushpin Label Position: | none |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Virginia |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Alleghany |
| Population As Of: | 2010 |
| Population Total: | 348 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1122 |
| Postal Code Type: | ZIP code |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1492692 |
Callaghan is an Unincorporated community and census-designated place (CDP) in Alleghany County, Virginia, United States. The population as of the 2010 Census was 348.
Humpback Covered Bridge and Wood Hall are listed on the U.S. National Register of Historic Places.