| Campbellsville to Olympia Heights (Florida) | 855.06 mi (1,376.08 km) |
| Campbellsville to Omaha (Nebraska) | 632.37 mi (1,017.71 km) |
| Campbellsville to On Top of the World Designated Place (Florida) | 596.05 mi (959.25 km) |
| Campbellsville to Onalaska (Wisconsin) | 546.26 mi (879.13 km) |
| Campbellsville to Oneida (New York) | 645.98 mi (1,039.60 km) |
| Campbellsville to Oneonta (New York) | 648.79 mi (1,044.12 km) |
| Campbellsville to Ontario (California) | 1,815.49 mi (2,921.75 km) |
| Campbellsville to Ontario (Oregon) | 1,708.37 mi (2,749.36 km) |
| Campbellsville to Opa-locka (Florida) | 845.30 mi (1,360.38 km) |
| Campbellsville to Opelika (Alabama) | 323.59 mi (520.76 km) |
| Campbellsville to Opelousas (Louisiana) | 608.60 mi (979.44 km) |
| Campbellsville to Orange (California) | 1,832.02 mi (2,948.35 km) |
| Campbellsville to Orange (Texas) | 694.00 mi (1,116.88 km) |
| Campbellsville to Orange City (Florida) | 626.61 mi (1,008.44 km) |
| Campbellsville to Orangeburg (South Carolina) | 366.74 mi (590.21 km) |
