| Wellawatta South | |
| Settlement Type: | Grama Niladhari Division |
| Iso Code: | LK-1127090 |
| Coordinates: | 6.8669°N 79.8615°W |
| Area Total Km2: | 0.78 |
| Elevation M: | 18 |
| Elevation Footnotes: | [1] |
| Population Total: | 10826 |
| Population Density Km2: | 13879 |
| Population As Of: | 2012 |
| Population Footnotes: | [2] |
| Subdivision Type: | Country |
| Subdivision Name: | Sri Lanka |
| Subdivision Type1: | Province |
| Subdivision Name1: | Western Province |
| Subdivision Type2: | District |
| Subdivision Name2: | Colombo District |
| Subdivision Type3: | Divisional Secretariat |
| Subdivision Name3: | Thimbirigasyaya Divisional Secretariat |
| Subdivision Type4: | Electoral District |
| Subdivision Name4: | Colombo Electoral District |
| Subdivision Type5: | Polling Division |
| Subdivision Name5: | Colombo West Polling Division |
Wellawatta South Grama Niladhari Division is a Grama Niladhari Division of the Thimbirigasyaya Divisional Secretariat of Colombo District of Western Province, Sri Lanka.
St. Lawrence's Church, Wellawatte, Mount-Lavinia and Wellawatte are located within, nearby or associated with Wellawatta South.
Wellawatta South is a surrounded by the Dehiwala West, Galwala, Sri Saranankara, Pamankada West and Wellawatta North Grama Niladhari Divisions.
The Wellawatta South Grama Niladhari Division has a Sri Lankan Tamil majority (57.3%), a significant Sinhalese population (26.1%) and a significant Moor population (13.8%). In comparison, the Thimbirigasyaya Divisional Secretariat (which contains the Wellawatta South Grama Niladhari Division) has a Sinhalese majority (52.8%), a significant Sri Lankan Tamil population (28.0%) and a significant Moor population (15.1%)[3]
The Wellawatta South Grama Niladhari Division has a Hindu majority (53.2%), a significant Buddhist population (20.4%) and a significant Muslim population (15.6%). In comparison, the Thimbirigasyaya Divisional Secretariat (which contains the Wellawatta South Grama Niladhari Division) has a Buddhist plurality (47.9%), a significant Hindu population (22.5%) and a significant Muslim population (17.4%)[4]