| Cookstown to Oerlinghausen | 661.14 mi (1,063.99 km) |
| Cookstown to Oestrich-Winkel | 698.71 mi (1,124.47 km) |
| Cookstown to Offenburg | 759.20 mi (1,221.81 km) |
| Cookstown to Oftersheim | 744.73 mi (1,198.52 km) |
| Cookstown to Ohrdruf | 774.83 mi (1,246.98 km) |
| Cookstown to Ohringen | 785.29 mi (1,263.81 km) |
| Cookstown to Olbernhau | 881.72 mi (1,418.99 km) |
| Cookstown to Olching | 892.89 mi (1,436.96 km) |
| Cookstown to Oldenburg | 616.60 mi (992.32 km) |
| Cookstown to Oldenburg in Holstein | 706.30 mi (1,136.68 km) |
| Cookstown to Olfen | 617.76 mi (994.19 km) |
| Cookstown to Olpe | 656.66 mi (1,056.79 km) |
| Cookstown to Olsberg | 671.33 mi (1,080.40 km) |
| Cookstown to Oranienburg | 824.82 mi (1,327.42 km) |
| Cookstown to Ortenberg | 725.62 mi (1,167.78 km) |
