Killay South () was an electoral ward in the City and County of Swansea, Wales. The ward was mainly rural and consisted of some or all of the following areas: Dunvant, Ilston, Killay, Sketty and Upper Killay in the parliamentary constituency of Swansea West.
It was bounded by the wards of Dunvant and Killay North to the north; Sketty to the east; Mayals to the south; and Fairwood to the west.
results for the election held on 4th May 2017:
Results for the election held on 3rd May 2012:
Results for the election held on 1st May 2008:
Results for the election held on 10th June 2004:
Results for the election held on 6th May 1999:
Results for the election held in 1995: