| Fivemile Branch | rises in central Columbus County and flows SE then N into Cedar Branch. |
| Flag Branch | rises in SE Union County and flows NE into Rays Fork. |
| Flaggtown | community in NW Montgomery County served by post office from 1879 until 1895, when name was changed to Pontop. Area now home to Uwharrie Point Lake and golf course community. |
| Flake | community in W Iredell County served by post office, 1900-1905. |
| Flannery Fork [South Fork New River] | rises in Moses H. Cone Memorial Park approx. 2 mi. NW of town of Blowing Rock, S Watauga County. It flows W into Trout Lake and then NE to join East Fork and Middle Fork in forming South Fork New River approx. 2 mi. SE of town of Boone. |
| Flat Branch | rises in W Brunswick County and flows S into Wet Ash Swamp. |
| Flat Branch | rises near Lookoff Gap in SE Buncombe County and flows SE into Rocky Fork. |
| Flat Branch | rises in NE Cherokee County and flows NW into Collett Creek. |
| Flat Branch | rises in NE Cherokee County and flows S into Valley River. |
| Flat Branch | rises in NW Gates County and flows SE through Jones Swamp into Hacklan Branch. |