| Didymoteicho to Oegstgeest | 1,275.24 mi (2,052.31 km) |
| Didymoteicho to Oirschot | 1,222.14 mi (1,966.85 km) |
| Didymoteicho to Oisterwijk | 1,228.57 mi (1,977.19 km) |
| Didymoteicho to Oldebroek | 1,231.03 mi (1,981.15 km) |
| Didymoteicho to Oldenzaal | 1,188.95 mi (1,913.42 km) |
| Didymoteicho to Ommen | 1,214.73 mi (1,954.92 km) |
| Didymoteicho to Oosterend | 1,244.89 mi (2,003.45 km) |
| Didymoteicho to Oosterhout | 1,243.58 mi (2,001.35 km) |
| Didymoteicho to Oosterwolde | 1,236.48 mi (1,989.93 km) |
| Didymoteicho to Oostzaan | 1,267.76 mi (2,040.26 km) |
| Didymoteicho to Opmeer | 1,274.22 mi (2,050.66 km) |
| Didymoteicho to Oss | 1,222.31 mi (1,967.12 km) |
| Didymoteicho to Oud-Beijerland | 1,266.42 mi (2,038.11 km) |
| Didymoteicho to Oudenbosch | 1,254.79 mi (2,019.39 km) |
| Didymoteicho to Oudewater | 1,254.88 mi (2,019.53 km) |
