Llaneurwg is a suburban area in Cardiff, Cardiff
- Built-Up Area: Cardiff
- Parish/Community: Trowbridge
- Unitary Authority: Cardiff
- Region: Wales
- Category: Populated Place
- Type: Suburban Area
- Latitude/Longitude: 51°31'41"N 3°5'54"W
- Eastings/Northings: 323891, 181595
- OS Grid: ST238815
- Mapcode Local: GBR J1.GWX3
- Mapcode Global: VH7BJ.7VSF
Location and coordinates are for the approximate centre of Llaneurwg within this administrative area.
Geographic features and populated places may cross administrative borders.