| Marmara Ereglisi to Oerlinghausen | 1,185.12 mi (1,907.26 km) |
| Marmara Ereglisi to Oestrich-Winkel | 1,144.97 mi (1,842.65 km) |
| Marmara Ereglisi to Offenburg | 1,106.47 mi (1,780.70 km) |
| Marmara Ereglisi to Oftersheim | 1,102.95 mi (1,775.03 km) |
| Marmara Ereglisi to Ohrdruf | 1,067.70 mi (1,718.30 km) |
| Marmara Ereglisi to Ohringen | 1,060.58 mi (1,706.83 km) |
| Marmara Ereglisi to Olbernhau | 968.67 mi (1,558.93 km) |
| Marmara Ereglisi to Olching | 956.11 mi (1,538.70 km) |
| Marmara Ereglisi to Oldenburg | 1,245.77 mi (2,004.87 km) |
| Marmara Ereglisi to Oldenburg in Holstein | 1,210.11 mi (1,947.49 km) |
| Marmara Ereglisi to Olfen | 1,223.37 mi (1,968.82 km) |
| Marmara Ereglisi to Olpe | 1,183.12 mi (1,904.05 km) |
| Marmara Ereglisi to Olsberg | 1,169.75 mi (1,882.53 km) |
| Marmara Ereglisi to Oranienburg | 1,066.55 mi (1,716.45 km) |
| Marmara Ereglisi to Ortenberg | 1,114.40 mi (1,793.46 km) |
