| Mardin to Opwijk | 2,015.04 mi (3,242.90 km) |
| Mardin to Ostend | 2,072.52 mi (3,335.40 km) |
| Mardin to Oud-Heverlee | 1,992.39 mi (3,206.45 km) |
| Mardin to Oud-Turnhout | 1,987.43 mi (3,198.45 km) |
| Mardin to Oudenaarde | 2,037.95 mi (3,279.76 km) |
| Mardin to Oudenburg | 2,068.47 mi (3,328.88 km) |
| Mardin to Oupeye | 1,948.92 mi (3,136.48 km) |
| Mardin to Overijse | 1,997.23 mi (3,214.23 km) |
| Mardin to Overpelt | 1,967.53 mi (3,166.44 km) |
| Mardin to Paal | 1,974.56 mi (3,177.75 km) |
| Mardin to Peer | 1,964.46 mi (3,161.50 km) |
| Mardin to Pepinster | 1,939.08 mi (3,120.65 km) |
| Mardin to Peruwelz | 2,033.68 mi (3,272.89 km) |
| Mardin to Perwez | 1,982.66 mi (3,190.78 km) |
| Mardin to Philippeville | 1,987.36 mi (3,198.35 km) |
