Llanbadarn Fawr is a village and community in Ceredigion, Wales. It is on the outskirts of Aberystwyth next to Penparcau and Southgate. It forms the eastern part of the continually built-up area of Aberystwyth. It holds two electoral wards, Padarn and Sulien which elect a Ceredigion County Councillor each and several Llanbadarn Fawr Community Councillors. At the 2001 census its population as a community was recorded at 2,899, increasing to 3,380 at the 2011 census.
Llanbadarn Fawr Parish Church dedicated to St Padarn; the current church dates from 1257.