| Greencastle | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | West Virginia#USA |
| Pushpin Map Caption: | Location within the state of West Virginia |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | West Virginia |
| Subdivision Type2: | County |
| Subdivision Name2: | Wirt |
| 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: | 39.1311°N -81.3792°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Greencastle — also Green Castle, Greene Ford, or Greenville — is an unincorporated community in Wirt County, West Virginia, United States. Its elevation is 627 feet (191 m).[1]
Greencastle was originally called Greenville, derived from the name of Marrah Green, an "old slave" of Thomas Pribble, the first settler. The name was later changed by postal authorities to Greencastle in order to avoid confusion with another Greenville in the state.[2]