Denis Arthur Greenhill, Baron Greenhill of Harrow was the British Permanent Under-Secretary of State for Foreign Affairs and Head of the Diplomatic Service from 1969 to 1973; a respected expert on the US, Europe and the Soviet Union, he was actively involved in setting postwar Britain's role in the world in a new direction, away from its imperial past and a compliant involvement with the United States towards a more active engagement in Europe. He served under three prime ministers, Harold Wilson, Sir Alec Douglas-Home and Edward Heath.
- Occupation
- diplomat, engineer, civil servant, politician
- Position held
- Governor of the BBC, member of the House of Lords, Permanent Under-Secretary of State for Foreign Affairs
- Citizenship
