David Williams (8 September 1865 – 22 January 1941) was a Welsh Labour Party politician.The second son of David and Mary Williams, his father worked at the local Kilvey Copper Works. Williams received little education before entering service in 1877 as a pageboy for the Genfell family of Kilvey, Swansea, owners of the copper works. By the age of 16, he was working in the copper works, but was dismissed after leading a strike. He then became an apprentice boilermaker, while attending evening classes. In 1889, he married Elizabeth Colwill, and the couple had five children.