| Ridge to Nasaud | 4,519.61 mi (7,273.60 km) |
| Ridge to Navodari | 4,803.86 mi (7,731.07 km) |
| Ridge to Negresti-Oas | 4,458.99 mi (7,176.04 km) |
| Ridge to Nehoiu | 4,670.63 mi (7,516.66 km) |
| Ridge to Ocna Mures | 4,533.26 mi (7,295.57 km) |
| Ridge to Odobesti | 4,683.38 mi (7,537.18 km) |
| Ridge to Odorheiu Secuiesc | 4,592.64 mi (7,391.15 km) |
| Ridge to Oltenita | 4,735.76 mi (7,621.47 km) |
| Ridge to Onesti | 4,651.75 mi (7,486.27 km) |
| Ridge to Oradea | 4,430.74 mi (7,130.59 km) |
| Ridge to Orastie | 4,528.27 mi (7,287.55 km) |
| Ridge to Oravita | 4,498.83 mi (7,240.17 km) |
| Ridge to Orsova | 4,539.85 mi (7,306.18 km) |
| Ridge to Otelu Rosu | 4,507.31 mi (7,253.81 km) |
| Ridge to Otopeni | 4,694.19 mi (7,554.57 km) |
