Sir David Llewellyn, 1st Baronet

Sir David Richard Llewellyn, 1st Baronet JP (9 March 1879 – 15 December 1940) was a Welsh industrialist and financier.

Early life Llewellyn was born in Aberdare, South Wales on 9 March 1879. He was the son of Elizabeth Llewellyn and Rees Llewellyn (1851–1919), JP and High Sheriff of Breconshire. His paternal grandparents were David Llewellyn and Elizabeth ( Jones) Llewellyn.

He was a director of GKN and served as chairman of North's Navigation Colleries Ltd., Graigola Merthyr Company, and chairman of Welsh Associated Collieries Ltd in 1930. Sir David was a close friend of Lloyd George, the Liberal party Prime Minister of the United Kingdom from 1917 to 1922. In 1923, Llewellyn contracted to supply the United States with 1,000,000 tons of Welsh anthracite annually for five years.

On 31 January 1922, he was created 1st Baronet Llewellyn, of Bwllfa, Aberdare, County of Glamorgan in the Baronetage of the United Kingdom. He held the office of Justice of the Peace for Glamorgan.

Sir Rhys Llewellyn, 2nd Baronet (1910–1978), the High Sheriff of Glamorgan; he died unmarried.

Sir David died at his brother's house, Tynewydd, Hirwaun, Glamorganshire, on 15 December 1940, and was succeeded in the baronetcy by his eldest son, Rhys. His widow, Lady Llewellyn, died on 1 February 1966.