The Tenth Menzies ministry (Liberal–Country Coalition) was the 40th ministry of the Government of Australia. It was led by the country's 12th Prime Minister, Sir Robert Menzies. The Tenth Menzies ministry succeeded the Ninth Menzies ministry, which dissolved on 18 December 1963 following the federal election that took place in November. The ministry was replaced by the First Holt ministry on 26 January 1966 following the retirement of Menzies. As of 26 January 2023, Ian Sinclair is the last surviving member of the Tenth Menzies ministry; Sinclair is also the last surviving member of the First Holt ministry. James Forbes was the last surviving Liberal minister, and Allen Fairhall and Charles Barnes were the last surviving Liberal and Country Cabinet ministers respectively. Cabinet Outer ministry Notes Ministries of Elizabeth II Menzies, 10 1963 establishments in Australia 1966 disestablishments in Australia Robert Menzies Cabinets established in 1963 Cabinets disestablished in 1966