| Opatija to Marsciano | 193.36 mi (311.18 km) |
| Opatija to Martano | 408.48 mi (657.38 km) |
| Opatija to Martellago | 104.91 mi (168.83 km) |
| Opatija to Martina Franca | 354.85 mi (571.07 km) |
| Opatija to Martinengo | 220.27 mi (354.50 km) |
| Opatija to Martinsicuro | 170.34 mi (274.14 km) |
| Opatija to Mascali | 526.01 mi (846.53 km) |
| Opatija to Mascalucia | 538.02 mi (865.85 km) |
| Opatija to Masera di Padova | 118.21 mi (190.24 km) |
| Opatija to Maserada sul Piave | 100.20 mi (161.25 km) |
| Opatija to Massa | 223.50 mi (359.68 km) |
| Opatija to Massa Lombarda | 136.01 mi (218.88 km) |
| Opatija to Massafra | 357.71 mi (575.67 km) |
| Opatija to Massalubrense | 325.90 mi (524.48 km) |
| Opatija to Massarosa | 219.85 mi (353.82 km) |
