| Marietta to Mauldin (South Carolina) | 139.94 mi (225.21 km) |
| Marietta to Maumee (Ohio) | 528.41 mi (850.39 km) |
| Marietta to Maumelle (Arkansas) | 452.12 mi (727.62 km) |
| Marietta to Mayagüez (Puerto Rico) | 1,528.61 mi (2,460.05 km) |
| Marietta to Mayfield Heights (Ohio) | 549.10 mi (883.69 km) |
| Marietta to Mays Chapel (Maryland) | 577.94 mi (930.11 km) |
| Marietta to Maywood (California) | 1,919.06 mi (3,088.43 km) |
| Marietta to Maywood (Illinois) | 576.36 mi (927.56 km) |
| Marietta to McAlester (Oklahoma) | 643.16 mi (1,035.06 km) |
| Marietta to McAllen (Texas) | 976.47 mi (1,571.48 km) |
| Marietta to McCalla (Alabama) | 150.03 mi (241.45 km) |
| Marietta to McComb (Mississippi) | 392.53 mi (631.72 km) |
| Marietta to McDonough (Georgia) | 42.03 mi (67.64 km) |
| Marietta to McFarland (California) | 1,961.71 mi (3,157.07 km) |
| Marietta to McHenry (Illinois) | 614.00 mi (988.14 km) |
