The Minister for the Cabinet Office is a position in the Cabinet Office of the United Kingdom. The minister is responsible for the work and policies of the Cabinet Office, and since February 2022, reports to the Chancellor of the Duchy of Lancaster. The position is currently the third highest ranking minister in the Cabinet Office, after the Prime Minister and the Chancellor of the Duchy of Lancaster.

The Cabinet Office is a ministerial department of the Government of the United Kingdom. It is responsible for supporting the prime minister and Cabinet. It is composed of various units that support Cabinet committees and coordinate the delivery of government objectives via other departments. As of December 2021, it had over 10,200 staff, mostly civil servants, some of whom work in Whitehall. Staff working in the Prime Minister's Office are part of the Cabinet Office.