| Athens to Oerlinghausen | 1,209.52 mi (1,946.53 km) |
| Athens to Oestrich-Winkel | 1,135.83 mi (1,827.94 km) |
| Athens to Offenburg | 1,071.72 mi (1,724.76 km) |
| Athens to Oftersheim | 1,087.62 mi (1,750.36 km) |
| Athens to Ohrdruf | 1,091.52 mi (1,756.63 km) |
| Athens to Ohringen | 1,048.90 mi (1,688.05 km) |
| Athens to Olbernhau | 1,013.57 mi (1,631.18 km) |
| Athens to Olching | 941.21 mi (1,514.74 km) |
| Athens to Oldenburg | 1,282.56 mi (2,064.09 km) |
| Athens to Oldenburg in Holstein | 1,279.54 mi (2,059.22 km) |
| Athens to Olfen | 1,235.67 mi (1,988.62 km) |
| Athens to Olpe | 1,188.32 mi (1,912.42 km) |
| Athens to Olsberg | 1,184.20 mi (1,905.79 km) |
| Athens to Oranienburg | 1,137.78 mi (1,831.08 km) |
| Athens to Ortenberg | 1,118.10 mi (1,799.41 km) |
