| Namur to Olympia Heights (Florida) | 4,663.80 mi (7,505.66 km) |
| Namur to Omaha (Nebraska) | 4,511.15 mi (7,260.00 km) |
| Namur to On Top of the World Designated Place (Florida) | 4,577.30 mi (7,366.45 km) |
| Namur to Onalaska (Wisconsin) | 4,208.70 mi (6,773.24 km) |
| Namur to Oneida (New York) | 3,654.79 mi (5,881.82 km) |
| Namur to Oneonta (New York) | 3,657.58 mi (5,886.30 km) |
| Namur to Ontario (California) | 5,628.25 mi (9,057.79 km) |
| Namur to Ontario (Oregon) | 5,034.82 mi (8,102.76 km) |
| Namur to Opa-locka (Florida) | 4,651.40 mi (7,485.71 km) |
| Namur to Opelika (Alabama) | 4,528.87 mi (7,288.51 km) |
| Namur to Opelousas (Louisiana) | 4,906.32 mi (7,895.95 km) |
| Namur to Orange (California) | 5,648.61 mi (9,090.57 km) |
| Namur to Orange (Texas) | 4,993.65 mi (8,036.50 km) |
| Namur to Orange City (Florida) | 4,543.83 mi (7,312.58 km) |
| Namur to Orangeburg (South Carolina) | 4,303.39 mi (6,925.64 km) |
