| Millstone, West Virginia | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | West Virginia#USA |
| Pushpin Label: | Millstone |
| 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: | Calhoun |
| 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: | 38.8014°N -81.0961°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 25261 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Millstone is an unincorporated community in Calhoun County, West Virginia, United States. It lies along U.S. Route 33 at the point where West Virginia Route 16 heads northward, to the south of the town of Grantsville, the county seat of Calhoun County.[1] Its elevation is 810 feet (247 m).[2] It has a post office with the ZIP code 25261.[3]