Walter Bayley Madeley (Woolwich, England, 28 July 1873 – Boksburg, South Africa, 12 May 1947) was a leader of the South African Labour Party and a cabinet minister. Madeley got his schooling in India at Bombay Cathedral High School. In 1889, he became an apprentice at the Woolwich Arsenal. In 1896 he immigrated to South Africa where he was a fitter in a mine on the Rand. He joined a dedicated trade union and took part in various strikes. Soon he was considered a leading figure in the Labour Party because of his exceptional ability. In the 1910 general election, he was first elected to the House of Assembly of South Africa as a Labour MP. He represented the districts of Springs (1910-1915), then Benoni (1915-1945)