| Hellendoorn to Oberkirch | 274.23 mi (441.32 km) |
| Hellendoorn to Obernburg am Main | 209.59 mi (337.31 km) |
| Hellendoorn to Obernkirchen | 112.18 mi (180.54 km) |
| Hellendoorn to Oberschleissheim | 362.51 mi (583.40 km) |
| Hellendoorn to Oberstdorf | 382.11 mi (614.94 km) |
| Hellendoorn to Obertraubling | 342.64 mi (551.42 km) |
| Hellendoorn to Obertshausen | 189.04 mi (304.23 km) |
| Hellendoorn to Oberursel | 175.08 mi (281.76 km) |
| Hellendoorn to Ochsenfurt | 244.33 mi (393.21 km) |
| Hellendoorn to Ochsenhausen | 334.17 mi (537.79 km) |
| Hellendoorn to Ochtrup | 32.55 mi (52.38 km) |
| Hellendoorn to Odenthal | 96.24 mi (154.88 km) |
| Hellendoorn to Oelde | 80.39 mi (129.37 km) |
| Hellendoorn to Oelsnitz | 280.14 mi (450.85 km) |
| Hellendoorn to Oer-Erkenschwick | 60.15 mi (96.80 km) |
