| Opatija to Manfredonia | 268.17 mi (431.58 km) |
| Opatija to Maniago | 95.61 mi (153.88 km) |
| Opatija to Mantova | 171.12 mi (275.39 km) |
| Opatija to Maranello | 176.78 mi (284.50 km) |
| Opatija to Marano di Napoli | 306.37 mi (493.05 km) |
| Opatija to Marano Vicentino | 141.07 mi (227.04 km) |
| Opatija to Marcianise | 297.10 mi (478.14 km) |
| Opatija to Marcon | 98.17 mi (158.00 km) |
| Opatija to Mareno di Piave | 100.51 mi (161.75 km) |
| Opatija to Margherita di Savoia | 289.38 mi (465.71 km) |
| Opatija to Mariano Comense | 248.97 mi (400.68 km) |
| Opatija to Marigliano | 304.10 mi (489.41 km) |
| Opatija to Marino | 259.63 mi (417.84 km) |
| Opatija to Marostica | 131.11 mi (211.01 km) |
| Opatija to Marsala | 529.45 mi (852.06 km) |
