This is a list of members of the Australian Senate from 1965 to 1968.[1] Half of its members were elected at the 9 December 1961 election and had terms starting on 1 July 1962 and finishing on 30 June 1968; the other half were elected at the 5 December 1964 half Senate election and had terms starting on 1 July 1965 and finishing on 30 June 1971. The process for filling casual vacancies was complex. While senators were elected for a six-year term, people appointed to a casual vacancy only held office until the earlier of the next election for the House of Representatives or the Senate.[2]
^ abLiberal Senator Clive Hannaford died on 24 October 1967; Liberal member Condor Laucke was appointed to fill the ensuing vacancy on 2 November to complete the term until 30 June 1968.
^Liberal Party Senator Seddon Vincent died on 9 November 1964; Liberal Party member Peter Sim was appointed to fill the ensuing vacancy on 26 November until a special election at the November 1966 House of Representatives election, when he was elected to complete the term until 30 June 1968.
^Country Party Senator Harrie Wade died on 18 November 1964; Country Party member James Webster was appointed to fill the ensuing vacancy on 9 December until a special election at the November 1966 House of Representatives election, when he was elected to complete the term until 30 June 1968.