| Targu Neamt to Octeville | 1,287.42 mi (2,071.90 km) |
| Targu Neamt to Oignies | 1,081.51 mi (1,740.52 km) |
| Targu Neamt to Oissel | 1,165.79 mi (1,876.16 km) |
| Targu Neamt to Olivet | 1,137.09 mi (1,829.97 km) |
| Targu Neamt to Ollioules | 1,034.41 mi (1,664.72 km) |
| Targu Neamt to Olonne-sur-Mer | 1,322.42 mi (2,128.24 km) |
| Targu Neamt to Oloron-Sainte-Marie | 1,334.66 mi (2,147.93 km) |
| Targu Neamt to Onet Village | 1,157.06 mi (1,862.11 km) |
| Targu Neamt to Onnaing | 1,054.64 mi (1,697.28 km) |
| Targu Neamt to Orange | 1,058.14 mi (1,702.90 km) |
| Targu Neamt to Orchies | 1,070.53 mi (1,722.85 km) |
| Targu Neamt to Orleans | 1,136.39 mi (1,828.84 km) |
| Targu Neamt to Orly | 1,109.05 mi (1,784.85 km) |
| Targu Neamt to Ormesson-sur-Marne | 1,102.26 mi (1,773.92 km) |
| Targu Neamt to Orsay | 1,118.59 mi (1,800.20 km) |
