| Targu Neamt to Oerlinghausen | 855.38 mi (1,376.59 km) |
| Targu Neamt to Oestrich-Winkel | 858.44 mi (1,381.52 km) |
| Targu Neamt to Offenburg | 856.93 mi (1,379.09 km) |
| Targu Neamt to Oftersheim | 828.74 mi (1,333.73 km) |
| Targu Neamt to Ohrdruf | 749.36 mi (1,205.97 km) |
| Targu Neamt to Ohringen | 786.82 mi (1,266.26 km) |
| Targu Neamt to Olbernhau | 636.73 mi (1,024.72 km) |
| Targu Neamt to Olching | 701.69 mi (1,129.26 km) |
| Targu Neamt to Oldenburg | 898.32 mi (1,445.71 km) |
| Targu Neamt to Oldenburg in Holstein | 832.61 mi (1,339.96 km) |
| Targu Neamt to Olfen | 904.28 mi (1,455.30 km) |
| Targu Neamt to Olpe | 875.62 mi (1,409.17 km) |
| Targu Neamt to Olsberg | 852.60 mi (1,372.13 km) |
| Targu Neamt to Oranienburg | 696.27 mi (1,120.55 km) |
| Targu Neamt to Ortenberg | 815.28 mi (1,312.07 km) |
