State elections were held in South Australia on 3 November 1906, apart from the Northern Territory, which voted on 10 November. This was a double dissolution election, and in the South Australian House of Assembly, all 42 seats were up for election. The incumbent United Labor Party (ULP) government led by Premier of South Australia Thomas Price with coalition partner the Liberal and Democratic Union (LDU) led by Archibald Peake, defeated the conservative opposition led by Leader of the Opposition Richard Butler. Each of the 13 districts elected multiple members, with voters casting multiple votes.