| Seminole | community in W Harnett County. |
| Semora | community in NE Caswell County. Settled prior to the Revolution and known as Campbell's Crossroads. Post office, est. 1877, named Semora for the daughter of the first postmaster, James M. McAden. |
| Seng Branch | rises in NW Yancey County and flows NW into Cane River. Named for the herb ginseng, which was gathered in large quantities in the vicinity beginning about 1837. |
| Seng Gap | N Madison County at the head of Little Laurel Creek. |
| Seng Ridge | NW Madison County between Alum Ridge and Camp Creek Bald. |
| Senia | community in W Avery County. Named for a local resident, Senia Pritchard. |
| Seniard Creek | rises in NW Henderson County and flows S into North Fork in Pisgah National Forest. |
| Seniard Mountain | on the Haywood-Transylvania County line at the N end of Lanning Ridge. Alt. 5,025. |
| Seniard Ridge | N Transylvania County, extends SE from Seniard Mountain to Looking Glass Rock. |
| Service Ridge | W Haywood County in Great Smoky Mountains National Park, a spur extending NW from Cataloochee Divide; center near lat. 35°33'27" N., long. 83°07'15" W., between Big Bald Branch and Little Bald Branch. |