| Mariano Comense to Oerlinghausen | 433.62 mi (697.85 km) |
| Mariano Comense to Oestrich-Winkel | 302.11 mi (486.21 km) |
| Mariano Comense to Offenburg | 199.99 mi (321.86 km) |
| Mariano Comense to Oftersheim | 255.14 mi (410.61 km) |
| Mariano Comense to Ohrdruf | 361.39 mi (581.60 km) |
| Mariano Comense to Ohringen | 242.28 mi (389.91 km) |
| Mariano Comense to Olbernhau | 392.68 mi (631.95 km) |
| Mariano Comense to Olching | 199.89 mi (321.68 km) |
| Mariano Comense to Oldenburg | 516.15 mi (830.67 km) |
| Mariano Comense to Oldenburg in Holstein | 598.93 mi (963.89 km) |
| Mariano Comense to Olfen | 423.70 mi (681.88 km) |
| Mariano Comense to Olpe | 372.52 mi (599.52 km) |
| Mariano Comense to Olsberg | 391.68 mi (630.35 km) |
| Mariano Comense to Oranienburg | 520.39 mi (837.48 km) |
| Mariano Comense to Ortenberg | 321.74 mi (517.79 km) |
