| Troisdorf to Orzesze | 511.28 mi (822.83 km) |
| Troisdorf to Osowa | 535.34 mi (861.55 km) |
| Troisdorf to Ostroda | 576.30 mi (927.47 km) |
| Troisdorf to Ostroleka | 632.01 mi (1,017.13 km) |
| Troisdorf to Ostrow Mazowiecka | 643.40 mi (1,035.45 km) |
| Troisdorf to Ostrow Wielkopolski | 464.38 mi (747.34 km) |
| Troisdorf to Ostrowiec Swietokrzyski | 620.13 mi (998.01 km) |
| Troisdorf to Ostrzeszow | 468.87 mi (754.57 km) |
| Troisdorf to Oswiecim | 533.21 mi (858.11 km) |
| Troisdorf to Otwock | 612.99 mi (986.52 km) |
| Troisdorf to Ozarow Mazowiecki | 593.66 mi (955.41 km) |
| Troisdorf to Ozimek | 483.09 mi (777.46 km) |
| Troisdorf to Ozorkow | 528.24 mi (850.13 km) |
| Troisdorf to Pabianice | 531.50 mi (855.37 km) |
| Troisdorf to Parczew | 680.85 mi (1,095.72 km) |
