| Official Name: | Duff, Tennessee |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Tennessee#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Tennessee |
| Subdivision Type2: | County |
| Subdivision Name2: | Campbell |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1470 |
| Coordinates: | 36.4467°N -84.0675°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 37729 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1283073 |
Duff is an unincorporated community and coal town in Campbell County, Tennessee.