| Place |
Slang Term |
| Odiham |
Chicago |
| Oldham |
God's Acre |
| Old Hutton |
Old Town |
| Old Town |
New City |
| Omagh Strule Valley |
Ormskirk Big O |
| Oswestry |
Wizard of Oz |
| Otley |
Market Town |
|
|
| Place |
Slang Term |
| Ottringham |
The Devil's Drop |
| Overton |
Ginger Town |
| Overtown |
The Railway |
| Oxenholme |
Straight-line City |
| Oxford |
Big O / Union City/Dream City |
| Oxshot |
Dodge City |
| Oxton |
Circular City |
|
|
|
