| Orapeake Swamp | See Corapeake Swamp. |
| Orbit | community in S Bladen County served by post office, 1898-1911. |
| Orchard Branch | rises in E Haywood County and flows SE into Fines Creek. |
| Orchard Branch | rises in N central Transylvania County and flows S into King Creek. |
| Orchard Creek | rises in E Pamlico County and flows SE into Neuse River. Appears on the Moseley map, 1733. |
| Orchard Creek | See Craborchard Creek. |
| Orchard Ridge | N Madison County between Big Laurel Creek and Little Foster Creek. |
| Ore Hill | See Mount Vernon Springs. |
| Ore Knob | N Haywood County between Fall Branch and Hurricane Creek. |
| Ore Knob | former town in SE Ashe County. Inc. 1875. Copper mine there once employed 250 men; closed in 1886. Little evidence of buildings remains. Alt. 3,150. |