- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°50'28"N 4°46'52"W
- Eastings/Northings: 208500, 219500
- OS Grid: SN085195
- Mapcode Local: GBR CT.V4R0
- Mapcode Global: VH2NS.2ZQF
Location and coordinates are for the approximate centre of Gelli within this administrative area.
Geographic features and populated places may cross administrative borders.