| Middlesex to Malvern (Arkansas) | 1,089.37 mi (1,753.18 km) |
| Middlesex to Manassas (Virginia) | 202.70 mi (326.21 km) |
| Middlesex to Manassas Park (Virginia) | 199.99 mi (321.85 km) |
| Middlesex to Manatí (Puerto Rico) | 1,602.52 mi (2,579.00 km) |
| Middlesex to Manchester (Missouri) | 862.13 mi (1,387.47 km) |
| Middlesex to Manchester (New Hampshire) | 229.17 mi (368.82 km) |
| Middlesex to Manchester (Tennessee) | 721.47 mi (1,161.10 km) |
| Middlesex to Manchester (Virginia) | 268.30 mi (431.78 km) |
| Middlesex to Mandan (North Dakota) | 1,379.37 mi (2,219.88 km) |
| Middlesex to Mandeville (Louisiana) | 1,122.18 mi (1,805.98 km) |
| Middlesex to Mango (Florida) | 975.93 mi (1,570.60 km) |
| Middlesex to Manhattan (Kansas) | 1,172.76 mi (1,887.37 km) |
| Middlesex to Manhattan (New York) | 31.53 mi (50.74 km) |
| Middlesex to Manhattan Beach (California) | 2,432.84 mi (3,915.27 km) |
| Middlesex to Manitowoc (Wisconsin) | 714.87 mi (1,150.47 km) |
