| Viterbo to Nottingham | 950.78 mi (1,530.14 km) |
| Viterbo to Nuneaton | 939.91 mi (1,512.64 km) |
| Viterbo to Oadby | 931.49 mi (1,499.09 km) |
| Viterbo to Oakengates | 978.64 mi (1,574.97 km) |
| Viterbo to Oakham | 924.67 mi (1,488.11 km) |
| Viterbo to Oldbury | 956.24 mi (1,538.92 km) |
| Viterbo to Oldham | 1,007.91 mi (1,622.08 km) |
| Viterbo to Ollerton | 959.06 mi (1,543.47 km) |
| Viterbo to Olton | 946.53 mi (1,523.29 km) |
| Viterbo to Omagh | 1,215.28 mi (1,955.80 km) |
| Viterbo to Ormesby | 1,032.03 mi (1,660.89 km) |
| Viterbo to Ormskirk | 1,032.05 mi (1,660.92 km) |
| Viterbo to Orpington | 837.04 mi (1,347.08 km) |
| Viterbo to Ossett | 998.89 mi (1,607.56 km) |
| Viterbo to Oswaldtwistle | 1,025.58 mi (1,650.51 km) |
