| Official Name: | Duncan, West Virginia |
| Pushpin Map: | West Virginia#USA |
| Pushpin Label: | Duncan |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | West Virginia |
| Subdivision Type2: | County |
| Subdivision Name2: | Jackson |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 630 |
| Coordinates: | 38.9028°N -81.5733°W |
| Area Code: | 304 & 681 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1549662 |
Duncan is an unincorporated community in Jackson County, West Virginia, United States. Duncan is located on the Right Fork Sandy Creek and County Route 13, 8miles west of Reedy.[1] Duncan had a post office, which opened on February 10, 1892, and closed on July 1, 1989.[2]