This is a list of members of the Australian Senate from 1974 to 1975. The 18 May 1974 election was a double dissolution of both Houses, with all 127 seats in the House of Representatives, and all 60 seats in the Senate up for election. The incumbent Labor Party led by Prime Minister Gough Whitlam defeated the opposition Liberal Party led by Billy Snedden and their Coalition partner the Country Party led by Doug Anthony.
In accordance with section 13 of the Constitution, following a double dissolution of Parliament, the terms for Senators commence on 1 July preceding the election – i.e., on 1 July 1973. Half the Senators representing each State were allocated three-year terms ending on 30 June 1976 and the other half were to serve full six-year terms ending on 30 June 1979. However, in fact, the Senate was dissolved on 11 November 1975 for another double dissolution election on 13 December 1975.