| Oakhanger |
 |
Hamlet in the parish of Welford |
| Oakingham |
 |
Alternative name for Wokingham, a parish and market town in the hundreds of Sonning, Berks, and Amesbury, Wiltshire |
| Oakley Green |
 |
Part of Bray |
| Oare |
 |
Chapelry in the parish of Chieveley |
| Ock |
 |
One of the 20 hundreds of Berkshire, containing the parishes of Appleton, Drayton, Fyfield, Kingston Bagpuize, Marcham, Milton, Steventon, Sutton Courtney, Tubney, Little Wittenham, Long Wittenham, and parts of Denchworth, West Hanney, Longworth, and Stanford in the Vale |
| Ock |
 |
River in Berkshire |
| Odstone |
? |
Tything in the parish of Ashbury |
| Okefield |
 |
Tything in the parish of Stratfield Mortimer |
| Old Windsor |
 |
Parish in the hundred of Ripplesmere |
| Owlsmoor |
 |
Part of Sandhurst until Crowthorne, of which it is part, was made into an ecclesiastical parish in 1874 and a civil one in 1894 |
| Oxen Wood |
 |
Tything in the parish of Shalbourne |
| Oxford St Aldate |
 |
Parish in the city of Oxford containing places in the county of Berkshire |
| Â |
 |
 |
