| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Olfen | city | Nordrhein-Westfalen | Germany | 51.71 | 7.38 | 160 | 27283 |
| Olfen | city | Hessen | Germany | 49.59 | 8.89 | 1669 | 5461 |
| Olfhusum | city | Schleswig-Holstein | Germany | 54.83 | 8.67 | 3 | 2803 |
| Olfing | city | Bayern | Germany | 48.94 | 12.47 | 1053 | 3227 |