The cabinet secretary is the most senior civil servant in the United Kingdom and is based in the Cabinet Office. The person in this role acts as the senior policy adviser to the prime minister and Cab
Lord Hankey
Norman Brook, 1st Baron Normanbrook, in 1951
Official portrait of Lord Armstrong of Ilminster crop 2
Cabinet Office
Videos
The Cabinet Office is the ministerial department and senior decision-making office of the Government of the United Kingdom, responsible for supporting the prime minister and Cabinet. The Cabinet Offic
70 Whitehall, Westminster
The entrance to the Cabinet Office
Prime Minister Sir Keir Starmer Official Portrait
Darren Jones Official Cabinet Portrait, September 2025