| Brooklyn to Olympia Heights (Florida) | 1,094.64 mi (1,761.66 km) |
| Brooklyn to Omaha (Nebraska) | 1,151.01 mi (1,852.37 km) |
| Brooklyn to On Top of the World Designated Place (Florida) | 926.04 mi (1,490.31 km) |
| Brooklyn to Onalaska (Wisconsin) | 908.43 mi (1,461.98 km) |
| Brooklyn to Oneida (New York) | 189.41 mi (304.83 km) |
| Brooklyn to Oneonta (New York) | 137.43 mi (221.18 km) |
| Brooklyn to Ontario (California) | 2,415.81 mi (3,887.87 km) |
| Brooklyn to Ontario (Oregon) | 2,184.76 mi (3,516.04 km) |
| Brooklyn to Opa-locka (Florida) | 1,081.49 mi (1,740.49 km) |
| Brooklyn to Opelika (Alabama) | 838.86 mi (1,350.01 km) |
| Brooklyn to Opelousas (Louisiana) | 1,231.89 mi (1,982.53 km) |
| Brooklyn to Orange (California) | 2,433.73 mi (3,916.71 km) |
| Brooklyn to Orange (Texas) | 1,327.18 mi (2,135.88 km) |
| Brooklyn to Orange City (Florida) | 909.41 mi (1,463.56 km) |
| Brooklyn to Orangeburg (South Carolina) | 624.02 mi (1,004.27 km) |
