| Trabzon to Octeville | 2,067.15 mi (3,326.75 km) |
| Trabzon to Oignies | 1,865.31 mi (3,001.93 km) |
| Trabzon to Oissel | 1,943.91 mi (3,128.43 km) |
| Trabzon to Olivet | 1,904.60 mi (3,065.15 km) |
| Trabzon to Ollioules | 1,731.79 mi (2,787.05 km) |
| Trabzon to Olonne-sur-Mer | 2,080.51 mi (3,348.26 km) |
| Trabzon to Oloron-Sainte-Marie | 2,052.99 mi (3,303.98 km) |
| Trabzon to Onet Village | 1,883.69 mi (3,031.50 km) |
| Trabzon to Onnaing | 1,838.24 mi (2,958.37 km) |
| Trabzon to Orange | 1,776.10 mi (2,858.36 km) |
| Trabzon to Orchies | 1,854.40 mi (2,984.37 km) |
| Trabzon to Orleans | 1,904.22 mi (3,064.55 km) |
| Trabzon to Orly | 1,883.32 mi (3,030.92 km) |
| Trabzon to Ormesson-sur-Marne | 1,876.83 mi (3,020.46 km) |
| Trabzon to Orsay | 1,892.56 mi (3,045.77 km) |
