| Dokkum to Orbetello | 789.57 mi (1,270.69 km) |
| Dokkum to Oria | 1,039.65 mi (1,673.15 km) |
| Dokkum to Oristano | 935.28 mi (1,505.19 km) |
| Dokkum to Orta Nova | 943.51 mi (1,518.43 km) |
| Dokkum to Orte | 806.24 mi (1,297.51 km) |
| Dokkum to Ortona | 851.31 mi (1,370.05 km) |
| Dokkum to Orvieto | 784.81 mi (1,263.03 km) |
| Dokkum to Orzinuovi | 575.38 mi (925.99 km) |
| Dokkum to Osimo | 760.89 mi (1,224.54 km) |
| Dokkum to Ospitaletto | 567.08 mi (912.63 km) |
| Dokkum to Ostuni | 1,024.17 mi (1,648.24 km) |
| Dokkum to Ottaviano | 948.32 mi (1,526.17 km) |
| Dokkum to Ovada | 612.04 mi (984.99 km) |
| Dokkum to Ozieri | 891.51 mi (1,434.75 km) |
| Dokkum to Paceco | 1,105.20 mi (1,778.65 km) |
