| Greifswald to Navodari | 959.34 mi (1,543.91 km) |
| Greifswald to Negresti-Oas | 611.40 mi (983.95 km) |
| Greifswald to Nehoiu | 832.40 mi (1,339.62 km) |
| Greifswald to Ocna Mures | 703.45 mi (1,132.10 km) |
| Greifswald to Odobesti | 834.39 mi (1,342.83 km) |
| Greifswald to Odorheiu Secuiesc | 750.45 mi (1,207.74 km) |
| Greifswald to Oltenita | 911.74 mi (1,467.31 km) |
| Greifswald to Onesti | 799.60 mi (1,286.83 km) |
| Greifswald to Oradea | 611.46 mi (984.05 km) |
| Greifswald to Orastie | 715.51 mi (1,151.51 km) |
| Greifswald to Oravita | 726.09 mi (1,168.52 km) |
| Greifswald to Orsova | 761.71 mi (1,225.86 km) |
| Greifswald to Otelu Rosu | 713.05 mi (1,147.55 km) |
| Greifswald to Otopeni | 869.37 mi (1,399.11 km) |
| Greifswald to Ovidiu | 960.36 mi (1,545.56 km) |
