| Wittmund to Novi di Modena | 615.98 mi (991.32 km) |
| Wittmund to Novi Ligure | 610.79 mi (982.96 km) |
| Wittmund to Nuoro | 918.92 mi (1,478.87 km) |
| Wittmund to Occhiobello | 621.75 mi (1,000.60 km) |
| Wittmund to Oderzo | 577.95 mi (930.12 km) |
| Wittmund to Oggiono | 542.87 mi (873.66 km) |
| Wittmund to Olbia | 878.24 mi (1,413.40 km) |
| Wittmund to Oleggio | 552.33 mi (888.89 km) |
| Wittmund to Olgiate Comasco | 540.94 mi (870.56 km) |
| Wittmund to Olgiate Olona | 550.92 mi (886.61 km) |
| Wittmund to Omegna | 532.53 mi (857.03 km) |
| Wittmund to Opera | 569.62 mi (916.71 km) |
| Wittmund to Oppeano | 591.65 mi (952.17 km) |
| Wittmund to Orbassano | 592.07 mi (952.85 km) |
| Wittmund to Orbetello | 785.34 mi (1,263.88 km) |
