| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Duff | city | Arkansas | United States | 36.00 | -92.76 | 830 | |
| Duff | city | Indiana | United States | 38.33 | -87.03 | 830 | |
| Duff | city | Kentucky | United States | 37.55 | -86.41 | 830 | |
| Duff | city | Nebraska | United States | 42.20 | -99.60 | 2522 | |
| Duff | city | Tennessee | United States | 36.45 | -84.07 | 1699 | |
| Duff | city | Texas | United States | 31.64 | -94.13 | 830 | |
| Duff City | city | Pennsylvania | United States | 40.60 | -80.13 | 1095 | |
| Duff Creek | city | North Carolina | United States | 34.78 | -78.05 | 49 | |
| Duff Meadows Mobile Home Park | city | Florida | United States | 28.14 | -81.98 | 160 | |
| Duff Settlement | city | Alabama | United States | 32.92 | -87.22 | 321 | |
| Duffau | city | Texas | United States | 32.08 | -98.02 | 1118 | |
| Duffee | city | Mississippi | United States | 32.49 | -88.93 | 393 | |
| Duffie (historical) | city | Arkansas | United States | 34.28 | -93.13 | 830 | |
| Duffield | city | Colorado | United States | 38.74 | -104.91 | 8756 | |
| Duffield | city | Michigan | United States | 42.93 | -83.91 | 830 | |
| Duffield | city | Pennsylvania | United States | 39.88 | -77.58 | 849 | |
| Duffield | city | Virginia | United States | 36.72 | -82.80 | 1669 | |
| Duffield | city | Maryland | United States | 39.08 | -76.57 | 45 | |
| Duffields | city | West Virginia | United States | 39.36 | -77.83 | 830 | |
| Duffies | city | North Carolina | United States | 34.87 | -79.25 | 216 | |
| Duffin Heights | city | Utah | United States | 41.17 | -111.96 | 5029 | |
| Duffryn Mawr | city | Pennsylvania | United States | 40.04 | -75.49 | 830 | |
| Duffy | city | Ohio | United States | 39.64 | -80.87 | 830 | |
| Duffy | city | West Virginia | United States | 38.79 | -80.44 | 1669 | |
| Duffy Trailer Court | city | Montana | United States | 45.83 | -109.96 | 4199 | |
| Duford | city | South Carolina | United States | 34.19 | -79.06 | 75 | |
| Dufort | city | Idaho | United States | 48.17 | -116.60 | 2509 | |
| Dufour | city | California | United States | 38.76 | -121.84 | 62 | |
| Dufresne | city | Louisiana | United States | 29.94 | -90.39 | 9 | |
| Dufur | city | Oregon | United States | 45.45 | -121.13 | 1669 |