| Trabzon to Oerlinghausen | 1,642.94 mi (2,644.06 km) |
| Trabzon to Oestrich-Winkel | 1,641.74 mi (2,642.12 km) |
| Trabzon to Offenburg | 1,629.53 mi (2,622.47 km) |
| Trabzon to Oftersheim | 1,608.72 mi (2,588.98 km) |
| Trabzon to Ohrdruf | 1,536.55 mi (2,472.83 km) |
| Trabzon to Ohringen | 1,566.09 mi (2,520.39 km) |
| Trabzon to Olbernhau | 1,424.30 mi (2,292.19 km) |
| Trabzon to Olching | 1,473.07 mi (2,370.67 km) |
| Trabzon to Oldenburg | 1,683.77 mi (2,709.77 km) |
| Trabzon to Oldenburg in Holstein | 1,608.51 mi (2,588.64 km) |
| Trabzon to Olfen | 1,691.87 mi (2,722.81 km) |
| Trabzon to Olpe | 1,662.38 mi (2,675.35 km) |
| Trabzon to Olsberg | 1,640.03 mi (2,639.38 km) |
| Trabzon to Oranienburg | 1,478.00 mi (2,378.61 km) |
| Trabzon to Ortenberg | 1,600.56 mi (2,575.86 km) |
