| Douarnenez to Oakley (California) | 5,355.88 mi (8,619.45 km) |
| Douarnenez to Oakton (Virginia) | 3,573.63 mi (5,751.20 km) |
| Douarnenez to Oakville (Missouri) | 4,148.60 mi (6,676.53 km) |
| Douarnenez to Oatfield (Oregon) | 4,979.01 mi (8,012.94 km) |
| Douarnenez to Ocala (Florida) | 4,209.94 mi (6,775.24 km) |
| Douarnenez to Ocean Acres (New Jersey) | 3,407.39 mi (5,483.66 km) |
| Douarnenez to Ocean City (New Jersey) | 3,440.06 mi (5,536.24 km) |
| Douarnenez to Ocean Pines (Maryland) | 3,499.13 mi (5,631.31 km) |
| Douarnenez to Ocean Pointe (Hawaii) | 7,372.07 mi (11,864.19 km) |
| Douarnenez to Ocean Springs (Mississippi) | 4,448.46 mi (7,159.11 km) |
| Douarnenez to Oceanside (California) | 5,463.03 mi (8,791.89 km) |
| Douarnenez to Oceanside (New York) | 3,344.96 mi (5,383.19 km) |
| Douarnenez to Ocoee (Florida) | 4,209.57 mi (6,774.66 km) |
| Douarnenez to Oconomowoc (Wisconsin) | 3,874.50 mi (6,235.40 km) |
| Douarnenez to Odenton (Maryland) | 3,539.92 mi (5,696.95 km) |
