| Targu Jiu to Octeville | 1,203.06 mi (1,936.13 km) |
| Targu Jiu to Oignies | 1,010.19 mi (1,625.74 km) |
| Targu Jiu to Oissel | 1,078.87 mi (1,736.27 km) |
| Targu Jiu to Olivet | 1,032.63 mi (1,661.86 km) |
| Targu Jiu to Ollioules | 873.02 mi (1,404.99 km) |
| Targu Jiu to Olonne-sur-Mer | 1,206.20 mi (1,941.19 km) |
| Targu Jiu to Oloron-Sainte-Marie | 1,187.10 mi (1,910.45 km) |
| Targu Jiu to Onet Village | 1,013.97 mi (1,631.82 km) |
| Targu Jiu to Onnaing | 983.02 mi (1,582.01 km) |
| Targu Jiu to Orange | 908.75 mi (1,462.49 km) |
| Targu Jiu to Orchies | 999.60 mi (1,608.70 km) |
| Targu Jiu to Orleans | 1,032.39 mi (1,661.46 km) |
| Targu Jiu to Orly | 1,015.23 mi (1,633.85 km) |
| Targu Jiu to Ormesson-sur-Marne | 1,009.00 mi (1,623.83 km) |
| Targu Jiu to Orsay | 1,024.17 mi (1,648.24 km) |
