| Marin to Oerlinghausen | 1,045.47 mi (1,682.51 km) |
| Marin to Oestrich-Winkel | 952.77 mi (1,533.33 km) |
| Marin to Offenburg | 906.50 mi (1,458.88 km) |
| Marin to Oftersheim | 957.75 mi (1,541.35 km) |
| Marin to Ohrdruf | 1,085.98 mi (1,747.72 km) |
| Marin to Ohringen | 991.33 mi (1,595.40 km) |
| Marin to Olbernhau | 1,186.71 mi (1,909.82 km) |
| Marin to Olching | 1,048.46 mi (1,687.33 km) |
| Marin to Oldenburg | 1,076.03 mi (1,731.70 km) |
| Marin to Oldenburg in Holstein | 1,211.25 mi (1,949.32 km) |
| Marin to Olfen | 990.20 mi (1,593.57 km) |
| Marin to Olpe | 980.47 mi (1,577.92 km) |
| Marin to Olsberg | 1,016.45 mi (1,635.82 km) |
| Marin to Oranienburg | 1,240.17 mi (1,995.86 km) |
| Marin to Ortenberg | 1,005.53 mi (1,618.24 km) |
