| Oak Knob | on the Buncombe-Madison county line. Alt. approx. 4,400. Also appears on maps as Oakes Knob and as Oak Ridge. |
| Oak Knob | E Haywood County on James Branch. |
| Oak Level Township | SE Nash County. |
| Oak Lodge | community in E Guilford County. |
| Oak Park | community in S Buncombe County. |
| Oak Park | community in W Cherokee County on Shoal Creek S of Hiwassee River. |
| Oak Ridge | town in NW Guilford County. Alt. 885. Est. in 1852 and inc. in 1897. Named for its location on an oak-grown ridge. Oak Ridge Military Institute, oldest military preparatory school in North Carolina, founded there in 1853. |
| Oak Ridge | community in N Stokes County. |
| Oak Ridge | See Oak Knob. |
| Oak Ridge Creek | rises in E Jackson County and flows SW into Piney Mountain Creek. |