| Piraeus to Oststeinbek | 1,254.01 mi (2,018.14 km) |
| Piraeus to Ottendorf-Okrilla | 1,032.35 mi (1,661.41 km) |
| Piraeus to Ottersberg | 1,255.40 mi (2,020.38 km) |
| Piraeus to Ottobrunn | 922.84 mi (1,485.16 km) |
| Piraeus to Ottweiler | 1,136.25 mi (1,828.62 km) |
| Piraeus to Overath | 1,201.99 mi (1,934.41 km) |
| Piraeus to Oyten | 1,256.82 mi (2,022.65 km) |
| Piraeus to Paderborn | 1,194.45 mi (1,922.27 km) |
| Piraeus to Papenburg | 1,301.51 mi (2,094.58 km) |
| Piraeus to Parchim | 1,208.07 mi (1,944.20 km) |
| Piraeus to Pasewalk | 1,168.80 mi (1,881.01 km) |
| Piraeus to Passau | 893.87 mi (1,438.54 km) |
| Piraeus to Pattensen | 1,194.52 mi (1,922.39 km) |
| Piraeus to Pegnitz | 1,012.09 mi (1,628.80 km) |
| Piraeus to Peine | 1,185.00 mi (1,907.07 km) |
