| Middlesbrough to Nuth | 390.31 mi (628.14 km) |
| Middlesbrough to Oegstgeest | 287.22 mi (462.24 km) |
| Middlesbrough to Oirschot | 344.60 mi (554.58 km) |
| Middlesbrough to Oisterwijk | 337.59 mi (543.30 km) |
| Middlesbrough to Oldebroek | 327.72 mi (527.42 km) |
| Middlesbrough to Oldenzaal | 370.35 mi (596.02 km) |
| Middlesbrough to Ommen | 344.65 mi (554.66 km) |
| Middlesbrough to Oosterend | 317.06 mi (510.25 km) |
| Middlesbrough to Oosterhout | 323.74 mi (521.01 km) |
| Middlesbrough to Oosterwolde | 326.04 mi (524.71 km) |
| Middlesbrough to Oostzaan | 291.67 mi (469.39 km) |
| Middlesbrough to Opmeer | 284.50 mi (457.85 km) |
| Middlesbrough to Oss | 340.21 mi (547.51 km) |
| Middlesbrough to Oud-Beijerland | 301.13 mi (484.63 km) |
| Middlesbrough to Oudenbosch | 315.64 mi (507.97 km) |
