The 1977 Australian Referendum was held on 21 May 1977. It contained four referendum questions and one plebiscite.
Constitution Alteration (Referendums) 1977 proposed to allow residents in the territories to vote in referendums. Residents in territories were to be counted towards the national total, but would not be counted toward any state total. The question was put to a referendum in the Australian referendum, 1977.
Constitution Alteration (Simultaneous Elections) 1977 proposed for the second time that the Constitution be altered to ensure that elections for both houses of parliament occurred simultaneously. The question was put to a referendum in the Australian referendum, 1977.