Maurice Pascal Alers Hankey, 1st Baron Hankey, was a British civil servant who gained prominence as the first Cabinet Secretary and later made the rare transition from the civil service to ministerial office. He is best known as the highly-efficient top aide to Prime Minister David Lloyd George and the War Cabinet, which directed Britain during the First World War.

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 Cabinet, and as the Secretary to the Cabinet is responsible to all ministers for the efficient running of government. The role is currently occupied by Simon Case.