| Marseille to Navodari | 1,157.22 mi (1,862.36 km) |
| Marseille to Negresti-Oas | 925.82 mi (1,489.96 km) |
| Marseille to Nehoiu | 1,041.49 mi (1,676.11 km) |
| Marseille to Ocna Mures | 928.36 mi (1,494.06 km) |
| Marseille to Odobesti | 1,078.76 mi (1,736.09 km) |
| Marseille to Odorheiu Secuiesc | 996.25 mi (1,603.31 km) |
| Marseille to Oltenita | 1,060.91 mi (1,707.38 km) |
| Marseille to Onesti | 1,065.87 mi (1,715.34 km) |
| Marseille to Oradea | 845.28 mi (1,360.35 km) |
| Marseille to Orastie | 893.14 mi (1,437.37 km) |
| Marseille to Oravita | 816.08 mi (1,313.36 km) |
| Marseille to Orsova | 850.23 mi (1,368.31 km) |
| Marseille to Otelu Rosu | 850.51 mi (1,368.77 km) |
| Marseille to Otopeni | 1,031.01 mi (1,659.25 km) |
| Marseille to Ovidiu | 1,154.88 mi (1,858.60 km) |
