There have been two baronetcies created for persons with the surname Llewellyn, both in the Baronetage of the United Kingdom. One creation is extinct or dormant while one is extant. The Llewellyn Baronetcy, of Bwllfa, Aberdare, in the County of Glamorgan, was created in the Baronetage of the United Kingdom on 31 January 1922 for David Llewellyn, a Welsh industrialist. He was notably Chairman of Welsh Associated Collieries. His first son, the second baronet, was High Sheriff of Glamorgan in 1950. His second son, the third baronet (who succeeded his elder brother), was a well-known equestrian. As of 2014 the title is held by the latter's second son, the fifth baronet (younger brother of the fourth baronet), who succeeded in 2009. He is a landscape gardener, gardening journalist, author and t