- Oak Island (historical)
- O'Donnell
- O'Donnell Heights
- O'Neill Island
- Oak Acres
- Oak Court
- Oak Crest
- Oak Dale
- Oak Estates
- Oak Forest
- Oak Forest Park
- Oak Grove
- Oak Grove
- Oak Grove
- Oak Hammock
- Oak Haven
- Oak Hill
- Oak Hill Estates
- Oak Hill Estates
- Oak Hill Estates
- Oak Hollow
- Oak Knolls
- Oak Landing
- Oak Lea
- Oak Orchard
- Oak Park
- Oak Park
- Oak Ridge
- Oak Ridge
- Oak Ridge