| Port Orchard to Oerlinghausen | 4,986.93 mi (8,025.68 km) |
| Port Orchard to Oestrich-Winkel | 5,086.41 mi (8,185.78 km) |
| Port Orchard to Offenburg | 5,174.47 mi (8,327.50 km) |
| Port Orchard to Oftersheim | 5,137.13 mi (8,267.42 km) |
| Port Orchard to Ohrdruf | 5,100.51 mi (8,208.47 km) |
| Port Orchard to Ohringen | 5,168.76 mi (8,318.31 km) |
| Port Orchard to Olbernhau | 5,166.87 mi (8,315.27 km) |
| Port Orchard to Olching | 5,270.42 mi (8,481.92 km) |
| Port Orchard to Oldenburg | 4,908.08 mi (7,898.79 km) |
| Port Orchard to Oldenburg in Holstein | 4,898.05 mi (7,882.65 km) |
| Port Orchard to Olfen | 4,971.99 mi (8,001.65 km) |
| Port Orchard to Olpe | 5,023.17 mi (8,084.02 km) |
| Port Orchard to Olsberg | 5,018.80 mi (8,076.97 km) |
| Port Orchard to Oranienburg | 5,039.02 mi (8,109.52 km) |
| Port Orchard to Ortenberg | 5,090.29 mi (8,192.03 km) |
