| Siirt to Nuth | 1,966.76 mi (3,165.20 km) |
| Siirt to Oegstgeest | 2,046.26 mi (3,293.14 km) |
| Siirt to Oirschot | 2,000.57 mi (3,219.61 km) |
| Siirt to Oisterwijk | 2,006.09 mi (3,228.50 km) |
| Siirt to Oldebroek | 1,992.42 mi (3,206.50 km) |
| Siirt to Oldenzaal | 1,948.01 mi (3,135.02 km) |
| Siirt to Ommen | 1,972.81 mi (3,174.94 km) |
| Siirt to Oosterend | 1,996.50 mi (3,213.06 km) |
| Siirt to Oosterhout | 2,021.37 mi (3,253.08 km) |
| Siirt to Oosterwolde | 1,987.29 mi (3,198.23 km) |
| Siirt to Oostzaan | 2,033.44 mi (3,272.51 km) |
| Siirt to Opmeer | 2,035.48 mi (3,275.78 km) |
| Siirt to Oss | 1,995.95 mi (3,212.17 km) |
| Siirt to Oud-Beijerland | 2,043.14 mi (3,288.12 km) |
| Siirt to Oudenbosch | 2,034.45 mi (3,274.13 km) |
