| Severna Park to Oakleaf Plantation (Florida) | 684.70 mi (1,101.93 km) |
| Severna Park to Oakley (California) | 2,414.50 mi (3,885.76 km) |
| Severna Park to Oakton (Virginia) | 41.68 mi (67.07 km) |
| Severna Park to Oakville (Missouri) | 741.40 mi (1,193.18 km) |
| Severna Park to Oatfield (Oregon) | 2,361.00 mi (3,799.66 km) |
| Severna Park to Ocala (Florida) | 755.01 mi (1,215.07 km) |
| Severna Park to Ocean Acres (New Jersey) | 130.28 mi (209.66 km) |
| Severna Park to Ocean City (New Jersey) | 106.08 mi (170.71 km) |
| Severna Park to Ocean Pines (Maryland) | 90.60 mi (145.81 km) |
| Severna Park to Ocean Pointe (Hawaii) | 4,859.53 mi (7,820.65 km) |
| Severna Park to Ocean Springs (Mississippi) | 915.33 mi (1,473.07 km) |
| Severna Park to Oceanside (California) | 2,289.06 mi (3,683.88 km) |
| Severna Park to Oceanside (New York) | 188.65 mi (303.60 km) |
| Severna Park to Ocoee (Florida) | 779.55 mi (1,254.56 km) |
| Severna Park to Oconomowoc (Wisconsin) | 679.26 mi (1,093.17 km) |
