| Marshall to Oakley (California) | 1,581.73 mi (2,545.55 km) |
| Marshall to Oakton (Virginia) | 1,050.14 mi (1,690.04 km) |
| Marshall to Oakville (Missouri) | 467.02 mi (751.60 km) |
| Marshall to Oatfield (Oregon) | 1,745.09 mi (2,808.46 km) |
| Marshall to Ocala (Florida) | 759.40 mi (1,222.13 km) |
| Marshall to Ocean Acres (New Jersey) | 1,222.02 mi (1,966.65 km) |
| Marshall to Ocean City (New Jersey) | 1,195.91 mi (1,924.63 km) |
| Marshall to Ocean Pines (Maryland) | 1,151.03 mi (1,852.41 km) |
| Marshall to Ocean Pointe (Hawaii) | 3,942.48 mi (6,344.82 km) |
| Marshall to Ocean Springs (Mississippi) | 359.37 mi (578.35 km) |
| Marshall to Oceanside (California) | 1,330.24 mi (2,140.81 km) |
| Marshall to Oceanside (New York) | 1,273.87 mi (2,050.09 km) |
| Marshall to Ocoee (Florida) | 809.51 mi (1,302.77 km) |
| Marshall to Oconomowoc (Wisconsin) | 796.21 mi (1,281.38 km) |
| Marshall to Odenton (Maryland) | 1,085.01 mi (1,746.15 km) |
