| Gornji Milanovac to Octeville | 1,109.28 mi (1,785.21 km) |
| Gornji Milanovac to Oignies | 929.17 mi (1,495.36 km) |
| Gornji Milanovac to Oissel | 985.30 mi (1,585.68 km) |
| Gornji Milanovac to Olivet | 927.60 mi (1,492.83 km) |
| Gornji Milanovac to Ollioules | 732.78 mi (1,179.29 km) |
| Gornji Milanovac to Olonne-sur-Mer | 1,090.85 mi (1,755.56 km) |
| Gornji Milanovac to Oloron-Sainte-Marie | 1,052.42 mi (1,693.71 km) |
| Gornji Milanovac to Onet Village | 883.46 mi (1,421.79 km) |
| Gornji Milanovac to Onnaing | 902.42 mi (1,452.30 km) |
| Gornji Milanovac to Orange | 775.47 mi (1,248.00 km) |
| Gornji Milanovac to Orchies | 919.11 mi (1,479.16 km) |
| Gornji Milanovac to Orleans | 927.67 mi (1,492.94 km) |
| Gornji Milanovac to Orly | 917.98 mi (1,477.34 km) |
| Gornji Milanovac to Ormesson-sur-Marne | 912.26 mi (1,468.15 km) |
| Gornji Milanovac to Orsay | 926.31 mi (1,490.76 km) |
