| Cookstown to Oberkirch | 761.57 mi (1,225.63 km) |
| Cookstown to Obernburg am Main | 747.41 mi (1,202.84 km) |
| Cookstown to Obernkirchen | 671.41 mi (1,080.53 km) |
| Cookstown to Oberschleissheim | 900.09 mi (1,448.55 km) |
| Cookstown to Oberstdorf | 889.29 mi (1,431.18 km) |
| Cookstown to Obertraubling | 894.47 mi (1,439.51 km) |
| Cookstown to Obertshausen | 727.49 mi (1,170.77 km) |
| Cookstown to Oberursel | 712.87 mi (1,147.25 km) |
| Cookstown to Ochsenfurt | 789.33 mi (1,270.30 km) |
| Cookstown to Ochsenhausen | 848.28 mi (1,365.18 km) |
| Cookstown to Ochtrup | 596.85 mi (960.54 km) |
| Cookstown to Odenthal | 628.73 mi (1,011.84 km) |
| Cookstown to Oelde | 644.42 mi (1,037.09 km) |
| Cookstown to Oelsnitz | 843.73 mi (1,357.86 km) |
| Cookstown to Oer-Erkenschwick | 614.78 mi (989.40 km) |
