| Greifswald to Oria | 958.97 mi (1,543.32 km) |
| Greifswald to Oristano | 1,004.68 mi (1,616.87 km) |
| Greifswald to Orta Nova | 887.61 mi (1,428.47 km) |
| Greifswald to Orte | 804.36 mi (1,294.49 km) |
| Greifswald to Ortona | 812.02 mi (1,306.82 km) |
| Greifswald to Orvieto | 787.38 mi (1,267.16 km) |
| Greifswald to Orzinuovi | 619.22 mi (996.55 km) |
| Greifswald to Osimo | 732.40 mi (1,178.69 km) |
| Greifswald to Ospitaletto | 607.25 mi (977.27 km) |
| Greifswald to Ostuni | 942.64 mi (1,517.04 km) |
| Greifswald to Ottaviano | 915.73 mi (1,473.73 km) |
| Greifswald to Ovada | 686.07 mi (1,104.12 km) |
| Greifswald to Ozieri | 954.46 mi (1,536.06 km) |
| Greifswald to Paceco | 1,113.10 mi (1,791.36 km) |
| Greifswald to Pachino | 1,202.71 mi (1,935.58 km) |
