| Thompsons Gap | E Alleghany County. |
| Thompsons Gut | rises in W Bertie County and flows W into Roanoke River. |
| Thompsons Millpond | N Wake County in Horse Creek. |
| Thompsonville | See Williamsburg. |
| Thorn Mountain | SW Macon County between Siler Bald Branch and Bryson Branch. |
| Thorntons Creek | rises in E Harnett County and flows SW into Cape Fear River. |
| Thorofare | channel in NE Carteret County connecting Thorofare Bay with West Thorofare Bay and forming the S boundary of Cedar Island. |
| Thorofare Bay | on the S side of Cedar Island emptying into Core Sound, NE Carteret County. |
| Thorofare Swamp | rises in E Pitt County and flows SE into Clayroot Swamp. |
| Thoroughfare | portion of Pee Dee River flowing S of Youngs Island, N Anson County. |