| Olomouc to Oignies | 634.67 mi (1,021.41 km) |
| Olomouc to Oissel | 724.40 mi (1,165.81 km) |
| Olomouc to Olivet | 708.43 mi (1,140.12 km) |
| Olomouc to Ollioules | 701.88 mi (1,129.57 km) |
| Olomouc to Olonne-sur-Mer | 900.79 mi (1,449.68 km) |
| Olomouc to Oloron-Sainte-Marie | 955.69 mi (1,538.03 km) |
| Olomouc to Onet Village | 777.83 mi (1,251.79 km) |
| Olomouc to Onnaing | 608.07 mi (978.60 km) |
| Olomouc to Orange | 696.86 mi (1,121.49 km) |
| Olomouc to Orchies | 623.65 mi (1,003.68 km) |
| Olomouc to Orleans | 707.35 mi (1,138.38 km) |
| Olomouc to Orly | 672.67 mi (1,082.56 km) |
| Olomouc to Ormesson-sur-Marne | 665.63 mi (1,071.23 km) |
| Olomouc to Orsay | 682.46 mi (1,098.31 km) |
| Olomouc to Orthez | 951.48 mi (1,531.26 km) |
