| Witham to Nasaud | 1,104.79 mi (1,777.99 km) |
| Witham to Navodari | 1,380.68 mi (2,222.00 km) |
| Witham to Negresti-Oas | 1,046.37 mi (1,683.96 km) |
| Witham to Nehoiu | 1,247.02 mi (2,006.89 km) |
| Witham to Ocna Mures | 1,109.41 mi (1,785.42 km) |
| Witham to Odobesti | 1,265.04 mi (2,035.88 km) |
| Witham to Odorheiu Secuiesc | 1,172.59 mi (1,887.10 km) |
| Witham to Oltenita | 1,306.88 mi (2,103.23 km) |
| Witham to Onesti | 1,236.40 mi (1,989.79 km) |
| Witham to Oradea | 1,006.20 mi (1,619.33 km) |
| Witham to Orastie | 1,099.96 mi (1,770.22 km) |
| Witham to Oravita | 1,066.99 mi (1,717.16 km) |
| Witham to Orsova | 1,108.02 mi (1,783.19 km) |
| Witham to Otelu Rosu | 1,076.59 mi (1,732.60 km) |
| Witham to Otopeni | 1,266.00 mi (2,037.42 km) |
