The Rhodesia Labour Party was a political party which existed in Southern Rhodesia from 1923 until the 1950s. Originally formed on the model of the British Labour Party from trade unions and being especially dominated by railway workers, it formed the main opposition party from 1934 to 1946. The party suffered a catastrophic split during the Second World War and lost all its seats, and a further split over the attitude to the Federation of Rhodesia and Nyasaland ended its involvement in Rhodesian politics.