| Oak Villa | community in E Hertford County. It developed on the old post road from Norfolk, Va., to Wilmington and was a point from which mail was rerouted. |
| Oakanoahs | See South Mountains. |
| Oakboro | town in SW Stanly County. Inc. 1915. Known as Furr City until about 1905. Post office est. 1914 with the coming of the railroad and when Big Lick post office was closed. |
| Oakdale | community on Deep River in SW Guilford County. |
| Oakdale | community in SW Wilkes County between Beaver Creek and Yadkin River. |
| Oakes Ridge | See Oak Knob. |
| Oakey Mountain | NE Rutherford County between North Fork and Collins Creek. Alt. approx. 2,200. |
| Oakgrove | community in E Cleveland County. |
| Oakgrove | community in NW Union County. |
| Oakland | community in central Nash County served by post office, 1885-1903. |