| Merthyr Tudful to Oststeinbek | 580.35 mi (933.99 km) |
| Merthyr Tudful to Ottendorf-Okrilla | 739.91 mi (1,190.77 km) |
| Merthyr Tudful to Ottersberg | 535.42 mi (861.68 km) |
| Merthyr Tudful to Ottobrunn | 714.44 mi (1,149.78 km) |
| Merthyr Tudful to Ottweiler | 490.61 mi (789.55 km) |
| Merthyr Tudful to Overath | 463.64 mi (746.16 km) |
| Merthyr Tudful to Oyten | 529.72 mi (852.50 km) |
| Merthyr Tudful to Paderborn | 518.59 mi (834.58 km) |
| Merthyr Tudful to Papenburg | 462.96 mi (745.06 km) |
| Merthyr Tudful to Parchim | 647.73 mi (1,042.42 km) |
| Merthyr Tudful to Pasewalk | 737.04 mi (1,186.15 km) |
| Merthyr Tudful to Passau | 775.02 mi (1,247.28 km) |
| Merthyr Tudful to Pattensen | 559.49 mi (900.41 km) |
| Merthyr Tudful to Pegnitz | 665.40 mi (1,070.85 km) |
| Merthyr Tudful to Peine | 579.12 mi (932.00 km) |
