| Struga to Oegstgeest | 1,076.48 mi (1,732.42 km) |
| Struga to Oirschot | 1,019.26 mi (1,640.34 km) |
| Struga to Oisterwijk | 1,026.20 mi (1,651.51 km) |
| Struga to Oldebroek | 1,042.39 mi (1,677.57 km) |
| Struga to Oldenzaal | 1,004.45 mi (1,616.50 km) |
| Struga to Ommen | 1,029.69 mi (1,657.12 km) |
| Struga to Oosterend | 1,063.62 mi (1,711.72 km) |
| Struga to Oosterhout | 1,040.33 mi (1,674.26 km) |
| Struga to Oosterwolde | 1,056.31 mi (1,699.96 km) |
| Struga to Oostzaan | 1,073.81 mi (1,728.12 km) |
| Struga to Opmeer | 1,083.66 mi (1,743.98 km) |
| Struga to Oss | 1,023.64 mi (1,647.39 km) |
| Struga to Oud-Beijerland | 1,063.14 mi (1,710.97 km) |
| Struga to Oudenbosch | 1,049.43 mi (1,688.89 km) |
| Struga to Oudewater | 1,056.03 mi (1,699.51 km) |
