| Buby Gap | on the Jackson-Macon county line. |
| Buchanan | community in N Granville County served by post office, 1856-1906. |
| Buchanan Branch | rises in SW Clay County and flows SW into Brasstown Creek. |
| Buchanan Falls | on Pee Dee River on the Anson-Richmond county line about 1½ mi. N of the South Carolina line. |
| Buchanan Ferry | See Diggs Ferry. |
| Buchanan Hollow | E Mitchell County between Mine Hill and Sandy Branch. |
| Buchanan's Pond | NW Scotland County on a tributary of Gum Swamp Creek. Formed in 1950 and named for owner, D. M. Buchanan. Covers 23 acres; max. depth 12 ft. Fishing, swimming, boating. |
| Buck | community in S Wilkes County near Millers Creek. |
| Buck Branch | rises in E Duplin County and flows SW into Little Limestone Creek. |
| Buck Branch | rises in S Durham County and flows SW into Burden Creek. |