| Ovidiu to Opole | 663.43 mi (1,067.69 km) |
| Ovidiu to Orzesze | 613.14 mi (986.76 km) |
| Ovidiu to Osowa | 834.08 mi (1,342.33 km) |
| Ovidiu to Ostroda | 757.94 mi (1,219.79 km) |
| Ovidiu to Ostroleka | 685.71 mi (1,103.54 km) |
| Ovidiu to Ostrow Mazowiecka | 662.80 mi (1,066.67 km) |
| Ovidiu to Ostrow Wielkopolski | 710.68 mi (1,143.72 km) |
| Ovidiu to Ostrowiec Swietokrzyski | 567.95 mi (914.04 km) |
| Ovidiu to Ostrzeszow | 696.29 mi (1,120.57 km) |
| Ovidiu to Oswiecim | 591.95 mi (952.64 km) |
| Ovidiu to Otwock | 637.06 mi (1,025.26 km) |
| Ovidiu to Ozarow Mazowiecki | 654.13 mi (1,052.72 km) |
| Ovidiu to Ozimek | 654.06 mi (1,052.61 km) |
| Ovidiu to Ozorkow | 681.45 mi (1,096.69 km) |
| Ovidiu to Pabianice | 662.50 mi (1,066.18 km) |
