| Ostrow Mazowiecka to Dabuleni | 629.79 mi (1,013.55 km) |
| Ostrow Mazowiecka to Darabani | 379.42 mi (610.61 km) |
| Ostrow Mazowiecka to Darmanesti | 489.10 mi (787.13 km) |
| Ostrow Mazowiecka to Dej | 403.67 mi (649.64 km) |
| Ostrow Mazowiecka to Deva | 480.42 mi (773.16 km) |
| Ostrow Mazowiecka to Dolhasca | 425.44 mi (684.68 km) |
| Ostrow Mazowiecka to Dorohoi | 388.60 mi (625.40 km) |
| Ostrow Mazowiecka to Draganesti-Olt | 608.23 mi (978.85 km) |
| Ostrow Mazowiecka to Dragasani | 572.46 mi (921.28 km) |
| Ostrow Mazowiecka to Drobeta-Turnu Severin | 565.29 mi (909.75 km) |
| Ostrow Mazowiecka to Fagaras | 499.99 mi (804.65 km) |
| Ostrow Mazowiecka to Falticeni | 417.10 mi (671.25 km) |
| Ostrow Mazowiecka to Fetesti | 638.91 mi (1,028.23 km) |
| Ostrow Mazowiecka to Filiasi | 585.04 mi (941.54 km) |
| Ostrow Mazowiecka to Flamanzi | 423.89 mi (682.19 km) |
