| Anzio to Olympia Heights (Florida) | 5,208.50 mi (8,382.27 km) |
| Anzio to Omaha (Nebraska) | 5,193.23 mi (8,357.69 km) |
| Anzio to On Top of the World Designated Place (Florida) | 5,153.08 mi (8,293.08 km) |
| Anzio to Onalaska (Wisconsin) | 4,888.31 mi (7,866.97 km) |
| Anzio to Oneida (New York) | 4,288.51 mi (6,901.69 km) |
| Anzio to Oneonta (New York) | 4,285.66 mi (6,897.10 km) |
| Anzio to Ontario (California) | 6,339.86 mi (10,203.03 km) |
| Anzio to Ontario (Oregon) | 5,756.33 mi (9,263.92 km) |
| Anzio to Opa-locka (Florida) | 5,196.78 mi (8,363.41 km) |
| Anzio to Opelika (Alabama) | 5,138.80 mi (8,270.10 km) |
| Anzio to Opelousas (Louisiana) | 5,533.08 mi (8,904.63 km) |
| Anzio to Orange (California) | 6,360.27 mi (10,235.87 km) |
| Anzio to Orange (Texas) | 5,625.31 mi (9,053.06 km) |
| Anzio to Orange City (Florida) | 5,113.69 mi (8,229.70 km) |
| Anzio to Orangeburg (South Carolina) | 4,898.95 mi (7,884.09 km) |
