The Holt government was the federal executive government of Australia led by Prime Minister Harold Holt. It was made up of members of a Liberal-Country Party coalition in the Australian Parliament from 26 January 1966 to 19 December 1967.

The Menzies government (1949–1966) refers to the second period of federal executive government of Australia led by Prime Minister Robert Menzies. It was made up of members of a Liberal–Country Party coalition in the Australian Parliament from 1949 to 1966. Menzies led the Liberal–Country Coalition to election victories in 1949, 1951, 1954, 1955, 1958, 1961 and 1963. Robert Menzies was Australia's longest serving prime minister. He had served a previous term as prime minister as leader of the United Australia Party from 1939 to 1941. Although he would retire in 1966, his party would remain in office until 1972, an unprecedented 23 years of government from nine consecutive election victories.