| Hirson to Oestrich-Winkel | 174.13 mi (280.23 km) |
| Hirson to Offenburg | 200.75 mi (323.08 km) |
| Hirson to Oftersheim | 204.89 mi (329.74 km) |
| Hirson to Ohrdruf | 299.49 mi (481.98 km) |
| Hirson to Ohringen | 247.74 mi (398.70 km) |
| Hirson to Olbernhau | 411.22 mi (661.80 km) |
| Hirson to Olching | 348.22 mi (560.41 km) |
| Hirson to Oldenburg | 284.64 mi (458.08 km) |
| Hirson to Oldenburg in Holstein | 417.68 mi (672.18 km) |
| Hirson to Olfen | 190.03 mi (305.82 km) |
| Hirson to Olpe | 181.39 mi (291.92 km) |
| Hirson to Olsberg | 216.53 mi (348.47 km) |
| Hirson to Oranienburg | 440.47 mi (708.87 km) |
| Hirson to Ortenberg | 222.14 mi (357.51 km) |
| Hirson to Oschatz | 406.65 mi (654.43 km) |
