| Opava to Miedzyrzec Podlaski | 254.96 mi (410.32 km) |
| Opava to Miedzyrzecz | 200.32 mi (322.39 km) |
| Opava to Mielec | 158.16 mi (254.53 km) |
| Opava to Mikolow | 46.91 mi (75.49 km) |
| Opava to Milanowek | 193.83 mi (311.94 km) |
| Opava to Milicz | 113.51 mi (182.68 km) |
| Opava to Minsk Mazowiecki | 222.11 mi (357.45 km) |
| Opava to Mlawa | 243.76 mi (392.29 km) |
| Opava to Mogilno | 187.38 mi (301.57 km) |
| Opava to Monki | 318.48 mi (512.54 km) |
| Opava to Morag | 288.13 mi (463.71 km) |
| Opava to Mosina | 166.00 mi (267.15 km) |
| Opava to Mragowo | 307.54 mi (494.94 km) |
| Opava to Murowana Goslina | 185.63 mi (298.74 km) |
| Opava to Myslenice | 90.85 mi (146.21 km) |
