Sir John Gerald Lang, GCB (20 December 1896 – 22 September 1984), was a British civil servant who held the position of Permanent Secretary of the Admiralty from 1947 to 1961.
During the First World War, he served with the Royal Marine Artillery before returning to the Civil Service.
[2] When the Permanent Secretary of the Admiralty, Sir Henry Vaughan Markham, died prematurely in December 1946, Lang was chosen as his successor.
He was President of the Samuel Pepys Club and a member of the Navy Records Society and the Worshipful Company of Shipwrights.
[2] In 1969, during his time as the Government's principal adviser on sport (1964–1971) and Deputy Chairman of the Sports Council, he chaired a working group that produced a report on crowd control at football matches.