| Cocoa to Olympia Heights (Florida) | 185.53 mi (298.59 km) |
| Cocoa to Omaha (Nebraska) | 1,238.74 mi (1,993.56 km) |
| Cocoa to On Top of the World Designated Place (Florida) | 104.74 mi (168.56 km) |
| Cocoa to Onalaska (Wisconsin) | 1,217.17 mi (1,958.85 km) |
| Cocoa to Oneida (New York) | 1,054.37 mi (1,696.85 km) |
| Cocoa to Oneonta (New York) | 1,023.32 mi (1,646.87 km) |
| Cocoa to Ontario (California) | 2,199.69 mi (3,540.06 km) |
| Cocoa to Ontario (Oregon) | 2,264.67 mi (3,644.63 km) |
| Cocoa to Opa-locka (Florida) | 174.38 mi (280.64 km) |
| Cocoa to Opelika (Alabama) | 403.24 mi (648.95 km) |
| Cocoa to Opelousas (Louisiana) | 696.28 mi (1,120.55 km) |
| Cocoa to Orange (California) | 2,212.11 mi (3,560.04 km) |
| Cocoa to Orange (Texas) | 791.98 mi (1,274.57 km) |
| Cocoa to Orange City (Florida) | 49.55 mi (79.74 km) |
| Cocoa to Orangeburg (South Carolina) | 353.17 mi (568.37 km) |
