| Mardin to Olivares | 2,547.15 mi (4,099.24 km) |
| Mardin to Olivenza | 2,576.22 mi (4,146.02 km) |
| Mardin to Olot | 2,041.97 mi (3,286.24 km) |
| Mardin to Onate | 2,286.47 mi (3,679.72 km) |
| Mardin to Onda | 2,200.79 mi (3,541.82 km) |
| Mardin to Onteniente | 2,231.99 mi (3,592.04 km) |
| Mardin to Orihuela | 2,259.90 mi (3,636.95 km) |
| Mardin to Osuna | 2,494.48 mi (4,014.48 km) |
| Mardin to Ourense | 2,566.85 mi (4,130.94 km) |
| Mardin to Oviedo | 2,456.05 mi (3,952.63 km) |
| Mardin to Paiporta | 2,214.72 mi (3,564.25 km) |
| Mardin to Pajara | 3,198.57 mi (5,147.59 km) |
| Mardin to Palafolls | 2,030.93 mi (3,268.46 km) |
| Mardin to Palafrugell | 2,008.57 mi (3,232.48 km) |
| Mardin to Palamos | 2,010.63 mi (3,235.80 km) |
