| Annapolis to Oakley (California) | 2,419.65 mi (3,894.04 km) |
| Annapolis to Oakton (Virginia) | 43.20 mi (69.53 km) |
| Annapolis to Oakville (Missouri) | 745.01 mi (1,198.98 km) |
| Annapolis to Oatfield (Oregon) | 2,367.61 mi (3,810.30 km) |
| Annapolis to Ocala (Florida) | 749.39 mi (1,206.03 km) |
| Annapolis to Ocean Acres (New Jersey) | 130.25 mi (209.62 km) |
| Annapolis to Ocean City (New Jersey) | 104.04 mi (167.44 km) |
| Annapolis to Ocean Pines (Maryland) | 83.58 mi (134.51 km) |
| Annapolis to Ocean Pointe (Hawaii) | 4,864.56 mi (7,828.75 km) |
| Annapolis to Ocean Springs (Mississippi) | 913.24 mi (1,469.72 km) |
| Annapolis to Oceanside (California) | 2,292.88 mi (3,690.04 km) |
| Annapolis to Oceanside (New York) | 190.69 mi (306.89 km) |
| Annapolis to Ocoee (Florida) | 773.50 mi (1,244.83 km) |
| Annapolis to Oconomowoc (Wisconsin) | 686.09 mi (1,104.15 km) |
| Annapolis to Odenton (Maryland) | 12.11 mi (19.48 km) |
