| Cluj-Napoca to Opole | 372.55 mi (599.56 km) |
| Cluj-Napoca to Orzesze | 321.88 mi (518.01 km) |
| Cluj-Napoca to Osowa | 574.45 mi (924.49 km) |
| Cluj-Napoca to Ostroda | 504.84 mi (812.46 km) |
| Cluj-Napoca to Ostroleka | 444.39 mi (715.18 km) |
| Cluj-Napoca to Ostrow Mazowiecka | 423.54 mi (681.62 km) |
| Cluj-Napoca to Ostrow Wielkopolski | 425.84 mi (685.32 km) |
| Cluj-Napoca to Ostrowiec Swietokrzyski | 304.48 mi (490.02 km) |
| Cluj-Napoca to Ostrzeszow | 410.32 mi (660.35 km) |
| Cluj-Napoca to Oswiecim | 301.76 mi (485.64 km) |
| Cluj-Napoca to Otwock | 383.97 mi (617.94 km) |
| Cluj-Napoca to Ozarow Mazowiecki | 396.66 mi (638.36 km) |
| Cluj-Napoca to Ozimek | 364.19 mi (586.11 km) |
| Cluj-Napoca to Ozorkow | 407.90 mi (656.44 km) |
| Cluj-Napoca to Pabianice | 386.87 mi (622.60 km) |
