| Groningen to Octeville | 431.59 mi (694.58 km) |
| Groningen to Oignies | 243.45 mi (391.80 km) |
| Groningen to Oissel | 357.11 mi (574.71 km) |
| Groningen to Olivet | 422.59 mi (680.10 km) |
| Groningen to Ollioules | 697.05 mi (1,121.80 km) |
| Groningen to Olonne-sur-Mer | 591.60 mi (952.08 km) |
| Groningen to Oloron-Sainte-Marie | 766.32 mi (1,233.27 km) |
| Groningen to Onet Village | 637.48 mi (1,025.92 km) |
| Groningen to Onnaing | 232.96 mi (374.91 km) |
| Groningen to Orange | 632.31 mi (1,017.60 km) |
| Groningen to Orchies | 236.60 mi (380.77 km) |
| Groningen to Orleans | 420.04 mi (676.00 km) |
| Groningen to Orly | 358.29 mi (576.61 km) |
| Groningen to Ormesson-sur-Marne | 352.58 mi (567.42 km) |
| Groningen to Orsay | 365.62 mi (588.42 km) |
