The minister of state for Brexit opportunities and government efficiency was a ministerial office in the Cabinet Office in the Government of the United Kingdom.

[1][2] This position was created (as "Minister for Efficiency and Transformation") by Prime Minister Boris Johnson in February 2020 as a renaming of Minister of State for the Treasury with new responsibilities.

After Jacob Rees-Mogg was appointed in February 2022, the role was made a full member of the Cabinet; he was based solely at the Cabinet Office.

Following Rees-Mogg's departure on 6 September 2022, to become Secretary of State for Business, Energy and Industrial Strategy under Liz Truss, no replacement was appointed and office was abolished.

[3] Responsibilities of the post included:[4]