Dunvant and Killay, formerly Dunvant (Welsh: Dyfnant), is an electoral ward in the City and County of Swansea, Wales, UK. It is named after the village of Dunvant and neighbouring Killay, which lie within the ward.

The electoral ward consisted of some or all of the following areas, Derlwyn, Dunvant, Killay, in the parliamentary constituency of Swansea West. It is bounded by Fairwood to the west; Gowerton to the north; Sketty to the east.

Until 2022, Dunvant and Killay consisted of three wards: Dunvant represented by two councillors; Killay North and Killay South represented by one councillor each. Following a local authority ward boundary review, the three wards were merged to become 'Dunvant and Killay', with an overall reduction in councillors to three. A local petition to oppose the changes was unsuccessful.

In the 2012 local council elections the turnout for Dunvant was 38.94%. The results were:

Candidate	Party	Votes	Status
John Newbury	Liberal Democrats	575	Liberal Democrats hold
Jennifer Raynor	Labour	420	Labour gain
Mick Harper	Labour	354
Nick Tregoning	Independent	351
Graham Isted	Liberal Democrat	302
Dee May	Kintessack Elite	231
Lis Davies	Independent	213
Jordan Slater	Conservatives	100
Robert Dowdle	Conservatives	89

51°37′38″N 4°02′18″W / 51.62710°N 4.03843°W / 51.62710; -4.03843