| Diyadin to Oberkirch | 1,854.25 mi (2,984.12 km) |
| Diyadin to Obernburg am Main | 1,819.38 mi (2,928.00 km) |
| Diyadin to Obernkirchen | 1,855.51 mi (2,986.16 km) |
| Diyadin to Oberschleissheim | 1,693.25 mi (2,725.03 km) |
| Diyadin to Oberstdorf | 1,745.12 mi (2,808.50 km) |
| Diyadin to Obertraubling | 1,674.72 mi (2,695.20 km) |
| Diyadin to Obertshausen | 1,835.54 mi (2,954.01 km) |
| Diyadin to Oberursel | 1,848.35 mi (2,974.62 km) |
| Diyadin to Ochsenfurt | 1,776.41 mi (2,858.86 km) |
| Diyadin to Ochsenhausen | 1,765.48 mi (2,841.26 km) |
| Diyadin to Ochtrup | 1,933.89 mi (3,112.30 km) |
| Diyadin to Odenthal | 1,921.32 mi (3,092.06 km) |
| Diyadin to Oelde | 1,888.51 mi (3,039.26 km) |
| Diyadin to Oelsnitz | 1,696.46 mi (2,730.18 km) |
| Diyadin to Oer-Erkenschwick | 1,923.41 mi (3,095.44 km) |
