Llanfair may refer to:
Llanfair, Ceredigion; a small village in Mid Wales
Llanfair, Gwynedd, a village in the Ardudwy area of Gwynedd
Llanfair Caereinion, Powys; a small town in east central Wales
Llanfair PG(" Llanfairpwllgwyngyll"), Anglesey; a village and community on the island of Anglesey in Wales
Llanfair (One Life to Live); the Lord family mansion on the American soap opera "One Life to Live"
*"Llanfair" is Welsh for "Church of St. Mary"
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