Caerdydd Ffynnon Taf

Caerdydd Ffynnon Taf
County multi-member constituency
for the Senedd
Boundary of Caerdydd Ffynnon Taf in Wales
Principal areas
Preserved county
Major settlementsCardiff (north and east), Nantgarw, Taff's Well
Future County multi-member constituency
Created2026
Seats6
Created from

Caerdydd Ffynnon Taf (Welsh for 'Cardiff [and] Taff's Well'; listen) is a proposed six-member constituency of the Senedd (Welsh Parliament; Welsh: Senedd Cymru) to be used for the 2026 Senedd election.

It was proposed following the 2026 review of Senedd constituencies, and will be a pairing of the two UK Parliament constituencies of Cardiff North and Cardiff East. It is to have a Welsh-only name.