Josiah Towyn Jones (28 December 1858 – 16 November 1925) was a Welsh clergyman and Liberal Party politician. He was Member of Parliament (MP) for Carmarthenshire East and later for Llanelli. He was born in New Quay, Cardiganshire, and began work as a farm labourer aged 11. A year later he went to sea as a cabin boy, later working as a ship's cook and steward. He married Mary Howells of Plas Cadwgan in the Swansea Valley in 1885 and they had two daughters.