| Rocky River to Oskaloosa (Iowa) | 559.05 mi (899.70 km) |
| Rocky River to Oswego (Illinois) | 335.42 mi (539.80 km) |
| Rocky River to Oswego (New York) | 305.15 mi (491.09 km) |
| Rocky River to Otsego (Minnesota) | 645.82 mi (1,039.35 km) |
| Rocky River to Ottawa (Illinois) | 361.34 mi (581.53 km) |
| Rocky River to Ottawa (Kansas) | 735.80 mi (1,184.15 km) |
| Rocky River to Ottumwa (Iowa) | 549.46 mi (884.27 km) |
| Rocky River to Overland (Missouri) | 489.01 mi (786.99 km) |
| Rocky River to Overland Park (Kansas) | 699.90 mi (1,126.38 km) |
| Rocky River to Overlea (Maryland) | 316.04 mi (508.62 km) |
| Rocky River to Oviedo (Florida) | 886.03 mi (1,425.92 km) |
| Rocky River to Owasso (Oklahoma) | 831.43 mi (1,338.06 km) |
| Rocky River to Owatonna (Minnesota) | 604.19 mi (972.35 km) |
| Rocky River to Owensboro (Kentucky) | 379.77 mi (611.17 km) |
| Rocky River to Owings Mills (Maryland) | 301.70 mi (485.54 km) |
