Latitude and Longitude of Important Cities in United Kingdom starting with 'O'
| Locations | Latitude | Longitude |
| Oa, Mull of | 55°35'N | 06°20'W |
| Oakham | 52°40'N | 0°43'W |
| Oban | 56°25'N | 05°29'W |
| Ochil Hills | 56°14'N | 03°40'W |
| Okehampton | 50°44'N | 04°0'W |
| Oldbury | 51°38'N | 02°33'W |
| Oldham | 53°33'N | 02°07'W |
| Oldmeldrum | 57°20'N | 02°19'W |
| Omagh | 54°36'N | 07°19'W |
| Omagh | 54°35'N | 07°15'W |
| Orford Ness | 52°05'N | 01°35'E |
| Orkney | 59°02'N | 03°13'W |
| Orkney Is. | 59°0'N | 03°0'W |
| Ormskirk | 53°35'N | 02°54'W |
| Oronsay | 56°01'N | 06°15'W |
| Orwell | 51°59'N | 01°18'E |
| Oswestry | 52°52'N | 03°03'W |
| Ottery St. Mary | 50°44'N | 03°17'W |
| Ouse E. Susx. | 50°47'N | 0°40'E |
| Ouse N. Yorks | 53°44'N | 0°55'W |
| Outer Hebrides | 57°30'N | 07°40'W |
| Oxford | 51°46'N | 01°15'W |
| Oxfordshire | 51°48'N | 01°16'W |
| Oykel | 57°56'N | 04°26'W |
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