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.

Ceredigion ( ), historically Cardiganshire, is a county in the west of Wales. It borders Gwynedd across the Dyfi estuary to the north, Powys to the east, Carmarthenshire and Pembrokeshire to the south, and the Irish Sea to the west. Aberystwyth is the largest settlement and, together with Aberaeron, is an administrative centre of Ceredigion County Council.