| Ottawa to Mendota (California) | 1,712.60 mi (2,756.16 km) |
| Ottawa to Mendota Heights (Minnesota) | 326.53 mi (525.50 km) |
| Ottawa to Menifee (California) | 1,633.06 mi (2,628.16 km) |
| Ottawa to Menlo Park (California) | 1,788.73 mi (2,878.68 km) |
| Ottawa to Menomonee Falls (Wisconsin) | 129.01 mi (207.63 km) |
| Ottawa to Menomonie (Wisconsin) | 289.39 mi (465.73 km) |
| Ottawa to Mentor (Ohio) | 388.01 mi (624.45 km) |
| Ottawa to Mequon (Wisconsin) | 136.82 mi (220.19 km) |
| Ottawa to Merced (California) | 1,704.86 mi (2,743.70 km) |
| Ottawa to Mercedes (Texas) | 1,171.25 mi (1,884.94 km) |
| Ottawa to Mercer Island (Washington) | 1,688.05 mi (2,716.65 km) |
| Ottawa to Mercerville (New Jersey) | 742.52 mi (1,194.97 km) |
| Ottawa to Meriden (Connecticut) | 829.19 mi (1,334.45 km) |
| Ottawa to Meridian (Idaho) | 1,406.98 mi (2,264.32 km) |
| Ottawa to Meridian (Mississippi) | 619.87 mi (997.59 km) |
