- Permanent Under-Secretaries at the Foreign Office, 1790 to present
{{Use dmy dates|date=October 2016}}{{Use British English|date=October 2016}}This is a list of Permanent Under-Secretaries in the British Foreign and Commonwealth Office (and its predecessors) since 1790. Not to be confused with Parliamentary Under-Secretary of State for Foreign Affairs. Permanent Under-Secretaries at the Foreign Office, 1790 to present These are the Permanent Secretaries or senior civil servants at the Foreign Office. - February 1790: George Aust
- October 1795: George Hammond (resigned 1806)
- March 1807: George Hammond
- October 1809: William Richard Hamilton
- July 1817: Joseph Planta
- April 1827: John Backhouse
- 1842: Henry Unwin Addington
- 1854: Edmund Hammond
- 1873: Lord Tenterden
- 1882: Sir Julian Pauncefote
- 1889: Sir Philip Currie
- 1894: Sir Thomas Sanderson
- 1906: Sir Charles Hardinge (later Lord Hardinge of Penshurst)
- 1910: Sir Arthur Nicolson
- 1916: Lord Hardinge of Penshurst
- 1920: Sir Eyre Crowe
- 1925: Sir William Tyrrell
- 1928: Sir Ronald Lindsay
- 1930: Sir Robert Vansittart
- 1938: Sir Alexander Cadogan
- 1946: Sir Orme Sargent (jointly with Sir William Strang, Head of the German Section 1947-1949)
- 1949: Sir William Strang (jointly with the Heads of the German Section: Sir Ivone Kirkpatrick 1949-1950, Sir D. Gainer 1950-1951)
- 1953: Sir Ivone Kirkpatrick
- 1957: Sir Frederick Hoyer Millar
- 1962: Sir Harold Caccia
- 1965: Sir Paul Gore-Booth (also Head of the Diplomatic Service from 1968; later created Baron Gore-Booth of Maltby)
- 1969: Sir Denis Greenhill
- 1973: Sir Thomas Brimelow
- 1975: Sir Michael Palliser
- 1982: Sir Antony Acland
- 1986: Sir Patrick Wright (later Lord Wright of Richmond)
- 1991: Sir David Gillmore (later Lord Gillmore of Thamesfield)
- 1994: Sir John Coles
- 1997: Sir John Kerr (later Lord Kerr of Kinlochard)
- 2002: Sir Michael Jay (later Lord Jay of Ewelme)
- 2006: Sir Peter Ricketts (later Lord Ricketts of Shortlands)
- 2010: Sir Simon Fraser
- 2015: Sir Simon McDonald
4 : Civil service positions in the United Kingdom|Foreign and Commonwealth Office|Lists of political office-holders in the United Kingdom|1790 establishments in Great Britain |