- Oakdale
- Oakview
- Oakwood
- Ogburns Crossroads
- Osceola
- Olde Farm
- Olive Branch
- Oak Park
- Oberlin
- Oakville
- Odell
- Oine
- Old Bethlehem
- Overhills
- Oakdale
- Oakwoods
- Ola
- Old Gilreath
- Osbornville
- Oak Hill
- Oak Hill Court
- Ottanola
- Overlook
- Oak Villa
- Ocracoke Island
- Outer Green Island
- Oyster Creek
- Oyster Creek Landing
- Oak Grove
- Old Farm