Llanfair Caereinion
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![Llanfair Caereinion Town Hall in 1802](/Images/godic/202501/24/Llanfair_Caereinion_Town_Hall0810.png")
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Llanfair Caereinion is a small town in Powys, Wales upon the River Banwy (also known as the River Einion), around 8 miles west of Welshpool.
In 2011 the ward had a population of 1,810. The town is built upon the site of an old Roman fort. Llanfair is most famous for being a terminus of the Welshpool and Llanfair Light Railway. The site of the Battle of Maes Moydog is nearby.