Llanelly House (also spelled Llanelli House) is one of the most notable historic properties in Llanelli, Carmarthenshire, Wales—an excellent example of an early-18th-century Georgian town house. It had been described as "the most outstanding domestic building of its early Georgian type to survive in South Wales." The then Member of Parliament for Carmarthenshire, Sir Thomas Stepney of the Pembrokeshire and Carmarthenshire Stepney Family, originally built the house in 1714. John Wesley, the early leader of the Methodist movement, stayed at the house several times during his visits to the town.