| Gorna Oryahovitsa to Navodari | 167.00 mi (268.76 km) |
| Gorna Oryahovitsa to Negresti-Oas | 345.25 mi (555.63 km) |
| Gorna Oryahovitsa to Nehoiu | 156.27 mi (251.49 km) |
| Gorna Oryahovitsa to Ocna Mures | 242.43 mi (390.15 km) |
| Gorna Oryahovitsa to Odobesti | 194.03 mi (312.26 km) |
| Gorna Oryahovitsa to Odorheiu Secuiesc | 220.63 mi (355.06 km) |
| Gorna Oryahovitsa to Oltenita | 80.84 mi (130.10 km) |
| Gorna Oryahovitsa to Onesti | 222.22 mi (357.64 km) |
| Gorna Oryahovitsa to Oradea | 328.59 mi (528.81 km) |
| Gorna Oryahovitsa to Orastie | 224.51 mi (361.31 km) |
| Gorna Oryahovitsa to Oravita | 238.83 mi (384.35 km) |
| Gorna Oryahovitsa to Orsova | 197.78 mi (318.30 km) |
| Gorna Oryahovitsa to Otelu Rosu | 233.48 mi (375.76 km) |
| Gorna Oryahovitsa to Otopeni | 99.61 mi (160.30 km) |
| Gorna Oryahovitsa to Ovidiu | 163.01 mi (262.34 km) |
