 | ||
| Cities of United Kingdom starting with the letter O (See below for Region Code descriptions) | ||
| Oakham (EN) | Oban (WY) | Okehampton (EN) |
| Old Craighall (WY) | Oldbury (EN) | Oldham (EN) |
| Omagh (XB) | Ormskirk (EN) | Oswestry (EN) |
| Otley (EN) | Otterburn (EN) | Oulton (EN) |
| Outlane (EN) | Oxford (EN) | |
| Provinces of United Kingdom Select a region for a complete city directory. | ||
| (CI) - Channel Islands | (EN) - England | (XB) - Northern Ireland |
| (WY) - Scotland | (WX) - Wales | |
