| Stadskanaal to Oerlinghausen | 100.76 mi (162.16 km) |
| Stadskanaal to Oestrich-Winkel | 211.01 mi (339.59 km) |
| Stadskanaal to Offenburg | 315.01 mi (506.96 km) |
| Stadskanaal to Oftersheim | 259.44 mi (417.53 km) |
| Stadskanaal to Ohrdruf | 219.44 mi (353.15 km) |
| Stadskanaal to Ohringen | 283.81 mi (456.75 km) |
| Stadskanaal to Olbernhau | 315.94 mi (508.46 km) |
| Stadskanaal to Olching | 381.82 mi (614.48 km) |
| Stadskanaal to Oldenburg | 53.64 mi (86.32 km) |
| Stadskanaal to Oldenburg in Holstein | 184.98 mi (297.70 km) |
| Stadskanaal to Olfen | 89.40 mi (143.88 km) |
| Stadskanaal to Olpe | 140.98 mi (226.88 km) |
| Stadskanaal to Olsberg | 130.21 mi (209.56 km) |
| Stadskanaal to Oranienburg | 262.60 mi (422.62 km) |
| Stadskanaal to Ortenberg | 202.70 mi (326.22 km) |
