| Rosny-sous-Bois to Olympia Heights (Florida) | 4,585.17 mi (7,379.12 km) |
| Rosny-sous-Bois to Omaha (Nebraska) | 4,487.93 mi (7,222.63 km) |
| Rosny-sous-Bois to On Top of the World Designated Place (Florida) | 4,507.92 mi (7,254.79 km) |
| Rosny-sous-Bois to Onalaska (Wisconsin) | 4,183.76 mi (6,733.11 km) |
| Rosny-sous-Bois to Oneida (New York) | 3,605.64 mi (5,802.71 km) |
| Rosny-sous-Bois to Oneonta (New York) | 3,606.00 mi (5,803.30 km) |
| Rosny-sous-Bois to Ontario (California) | 5,629.09 mi (9,059.14 km) |
| Rosny-sous-Bois to Ontario (Oregon) | 5,050.18 mi (8,127.48 km) |
| Rosny-sous-Bois to Opa-locka (Florida) | 4,572.95 mi (7,359.45 km) |
| Rosny-sous-Bois to Opelika (Alabama) | 4,471.26 mi (7,195.80 km) |
| Rosny-sous-Bois to Opelousas (Louisiana) | 4,855.74 mi (7,814.57 km) |
| Rosny-sous-Bois to Orange (California) | 5,649.50 mi (9,091.99 km) |
| Rosny-sous-Bois to Orange (Texas) | 4,945.19 mi (7,958.52 km) |
| Rosny-sous-Bois to Orange City (Florida) | 4,472.51 mi (7,197.82 km) |
| Rosny-sous-Bois to Orangeburg (South Carolina) | 4,240.24 mi (6,824.01 km) |
