| Cobh to Oakley (California) | 5,050.48 mi (8,127.96 km) |
| Cobh to Oakton (Virginia) | 3,333.23 mi (5,364.31 km) |
| Cobh to Oakville (Missouri) | 3,883.86 mi (6,250.47 km) |
| Cobh to Oatfield (Oregon) | 4,668.28 mi (7,512.88 km) |
| Cobh to Ocala (Florida) | 3,991.29 mi (6,423.36 km) |
| Cobh to Ocean Acres (New Jersey) | 3,170.38 mi (5,102.23 km) |
| Cobh to Ocean City (New Jersey) | 3,204.19 mi (5,156.65 km) |
| Cobh to Ocean Pines (Maryland) | 3,265.44 mi (5,255.22 km) |
| Cobh to Ocean Pointe (Hawaii) | 7,060.67 mi (11,363.06 km) |
| Cobh to Ocean Springs (Mississippi) | 4,208.99 mi (6,773.71 km) |
| Cobh to Oceanside (California) | 5,166.65 mi (8,314.92 km) |
| Cobh to Oceanside (New York) | 3,105.84 mi (4,998.36 km) |
| Cobh to Ocoee (Florida) | 3,994.64 mi (6,428.75 km) |
| Cobh to Oconomowoc (Wisconsin) | 3,600.63 mi (5,794.66 km) |
| Cobh to Odenton (Maryland) | 3,300.19 mi (5,311.15 km) |
