From Parley Green, Dorset to all cities in Suffolk starting with letter O
- Oak Hill, Dorset
- Oakley, Dorset
- Oakley Park, Dorset
- Oaks Tye, Dorset
- Occold, Dorset
- Offton, Dorset
- Old Felixstowe, Dorset
- Old Newton, Dorset
- Oldhall Green, Dorset
- Onehouse, Dorset
- Orford, Dorset
- Otley, Dorset
- Otley Bottom, Dorset
- Otley Green, Dorset
- Oulton, Dorset
- Oulton Broad, Dorset
- Ousden, Dorset
- Owls Green, Dorset