| Olivenza to Nottingham | 1,025.70 mi (1,650.71 km) |
| Olivenza to Nuneaton | 993.31 mi (1,598.57 km) |
| Olivenza to Oadby | 1,003.49 mi (1,614.97 km) |
| Olivenza to Oakengates | 993.08 mi (1,598.21 km) |
| Olivenza to Oakham | 1,012.98 mi (1,630.23 km) |
| Olivenza to Oldbury | 985.33 mi (1,585.73 km) |
| Olivenza to Oldham | 1,053.36 mi (1,695.22 km) |
| Olivenza to Ollerton | 1,043.58 mi (1,679.48 km) |
| Olivenza to Olton | 983.41 mi (1,582.65 km) |
| Olivenza to Omagh | 1,098.91 mi (1,768.52 km) |
| Olivenza to Ormesby | 1,130.49 mi (1,819.34 km) |
| Olivenza to Ormskirk | 1,047.30 mi (1,685.47 km) |
| Olivenza to Orpington | 943.42 mi (1,518.29 km) |
| Olivenza to Ossett | 1,068.32 mi (1,719.30 km) |
| Olivenza to Oswaldtwistle | 1,063.83 mi (1,712.06 km) |
