- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°50'17"N 3°2'0"W
- Eastings/Northings: 328902, 216002
- OS Grid: SO289160
- Mapcode Local: GBR F5.V67N
- Mapcode Global: VH796.C2R7
Location and coordinates are for the approximate centre of Llwyn-du within this administrative area.
Geographic features and populated places may cross administrative borders.