| Grootegast to Oerlinghausen | 132.15 mi (212.68 km) |
| Grootegast to Oestrich-Winkel | 234.12 mi (376.79 km) |
| Grootegast to Offenburg | 335.97 mi (540.69 km) |
| Grootegast to Oftersheim | 283.70 mi (456.56 km) |
| Grootegast to Ohrdruf | 250.97 mi (403.89 km) |
| Grootegast to Ohringen | 310.42 mi (499.57 km) |
| Grootegast to Olbernhau | 347.93 mi (559.94 km) |
| Grootegast to Olching | 410.44 mi (660.54 km) |
| Grootegast to Oldenburg | 80.10 mi (128.90 km) |
| Grootegast to Oldenburg in Holstein | 202.21 mi (325.43 km) |
| Grootegast to Olfen | 113.51 mi (182.68 km) |
| Grootegast to Olpe | 165.61 mi (266.52 km) |
| Grootegast to Olsberg | 158.99 mi (255.86 km) |
| Grootegast to Oranienburg | 290.88 mi (468.12 km) |
| Grootegast to Ortenberg | 230.42 mi (370.82 km) |
