| Roseburg to Olympia (Washington) | 264.77 mi (426.11 km) |
| Roseburg to Olympia Heights (Florida) | 2,693.93 mi (4,335.46 km) |
| Roseburg to Omaha (Nebraska) | 1,396.66 mi (2,247.70 km) |
| Roseburg to On Top of the World Designated Place (Florida) | 2,459.38 mi (3,957.99 km) |
| Roseburg to Onalaska (Wisconsin) | 1,600.00 mi (2,574.96 km) |
| Roseburg to Oneida (New York) | 2,370.43 mi (3,814.84 km) |
| Roseburg to Oneonta (New York) | 2,412.21 mi (3,882.07 km) |
| Roseburg to Ontario (California) | 705.82 mi (1,135.90 km) |
| Roseburg to Ontario (Oregon) | 323.60 mi (520.78 km) |
| Roseburg to Opa-locka (Florida) | 2,690.62 mi (4,330.14 km) |
| Roseburg to Opelika (Alabama) | 2,172.40 mi (3,496.14 km) |
| Roseburg to Opelousas (Louisiana) | 1,922.71 mi (3,094.31 km) |
| Roseburg to Orange (California) | 715.77 mi (1,151.93 km) |
| Roseburg to Orange (Texas) | 1,858.89 mi (2,991.59 km) |
| Roseburg to Orange City (Florida) | 2,515.72 mi (4,048.66 km) |
