| Elizabethton to Oerlinghausen | 4,331.13 mi (6,970.27 km) |
| Elizabethton to Oestrich-Winkel | 4,362.77 mi (7,021.21 km) |
| Elizabethton to Offenburg | 4,406.14 mi (7,090.99 km) |
| Elizabethton to Oftersheim | 4,405.22 mi (7,089.52 km) |
| Elizabethton to Ohrdruf | 4,445.60 mi (7,154.50 km) |
| Elizabethton to Ohringen | 4,447.41 mi (7,157.41 km) |
| Elizabethton to Olbernhau | 4,551.45 mi (7,324.86 km) |
| Elizabethton to Olching | 4,552.79 mi (7,327.01 km) |
| Elizabethton to Oldenburg | 4,280.04 mi (6,888.06 km) |
| Elizabethton to Oldenburg in Holstein | 4,345.74 mi (6,993.79 km) |
| Elizabethton to Olfen | 4,288.51 mi (6,901.69 km) |
| Elizabethton to Olpe | 4,326.27 mi (6,962.46 km) |
| Elizabethton to Olsberg | 4,342.05 mi (6,987.85 km) |
| Elizabethton to Oranienburg | 4,479.89 mi (7,209.69 km) |
| Elizabethton to Ortenberg | 4,394.18 mi (7,071.76 km) |
