| Mariano Comense to Oberkirch | 202.47 mi (325.85 km) |
| Mariano Comense to Obernburg am Main | 286.05 mi (460.36 km) |
| Mariano Comense to Obernkirchen | 453.70 mi (730.17 km) |
| Mariano Comense to Oberschleissheim | 208.94 mi (336.26 km) |
| Mariano Comense to Oberstdorf | 129.09 mi (207.75 km) |
| Mariano Comense to Obertraubling | 265.35 mi (427.04 km) |
| Mariano Comense to Obertshausen | 302.14 mi (486.25 km) |
| Mariano Comense to Oberursel | 312.41 mi (502.77 km) |
| Mariano Comense to Ochsenfurt | 275.99 mi (444.16 km) |
| Mariano Comense to Ochsenhausen | 167.83 mi (270.10 km) |
| Mariano Comense to Ochtrup | 458.45 mi (737.81 km) |
| Mariano Comense to Odenthal | 380.47 mi (612.30 km) |
| Mariano Comense to Oelde | 426.36 mi (686.16 km) |
| Mariano Comense to Oelsnitz | 353.74 mi (569.30 km) |
| Mariano Comense to Oer-Erkenschwick | 419.89 mi (675.74 km) |
