| Cologne to Orzesze | 520.27 mi (837.30 km) |
| Cologne to Osowa | 538.51 mi (866.66 km) |
| Cologne to Ostroda | 580.86 mi (934.81 km) |
| Cologne to Ostroleka | 637.59 mi (1,026.10 km) |
| Cologne to Ostrow Mazowiecka | 649.30 mi (1,044.96 km) |
| Cologne to Ostrow Wielkopolski | 471.52 mi (758.83 km) |
| Cologne to Ostrowiec Swietokrzyski | 628.07 mi (1,010.77 km) |
| Cologne to Ostrzeszow | 476.34 mi (766.60 km) |
| Cologne to Oswiecim | 542.25 mi (872.67 km) |
| Cologne to Otwock | 619.65 mi (997.23 km) |
| Cologne to Ozarow Mazowiecki | 600.18 mi (965.90 km) |
| Cologne to Ozimek | 491.53 mi (791.05 km) |
| Cologne to Ozorkow | 535.01 mi (861.01 km) |
| Cologne to Pabianice | 538.68 mi (866.92 km) |
| Cologne to Parczew | 688.02 mi (1,107.27 km) |
