| Muddy Slue | a slough in the tidal-marsh islands in the Cape Fear River opposite Southport, SE Brunswick County. |
| Mudlick | See Mud Lick. |
| Mulatto Branch | rises in S Lee County and flows SE into Little Juniper Creek. |
| Mulatto Mountain | S Ashe County. Alt. 4,680. |
| Mulberry | community in N central Wilkes County at the head of Lousy Creek. |
| Mulberry Bay | SW Carteret County in Bogue Sound between Banks Channel and Bogue Inlet. |
| Mulberry Branch | rises in Green Swamp, SW Brunswick County, and flows SW into Shallotte River. |
| Mulberry Creek | is formed in SE Ashe County by the junction of Meadow Fork and Laurel Fork Creeks and flows N and W to join Piney Fork Creek in forming Cranberry Creek. |
| Mulberry Creek | rises in N Caldwell County about 2½ mi. SE of Blowing Rock in Pisgah National Forest and flows approx. 12 mi. S into Johns River. |
| Mulberry Creek | rises in N central Carteret County and flows S into South River. |