| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Harknag | city | Syddanmark | Denmark | 55.08 | 8.69 | 9 | 1224 |
| Harkness | city | New York | United States | 44.52 | -73.57 | 830 | |
| Harkness | city | Pennsylvania | United States | 41.86 | -76.71 | 1669 | |
| Harkness Creek Park | city | Maryland | United States | 38.94 | -76.51 | 49 | |
| Harkness Crossroads | city | Alabama | United States | 33.91 | -86.72 | 830 | |
| Harkniven | city | Blekinge | Sweden | 56.30 | 15.07 | 164 | 626 |