Under-Secretary of State for Foreign Affairs

• 1782: Richard Brinsley Sheridan and William Fraser
• 1782: George Maddison (replacing Sheridan)
• 1783: The Hon. St Andrew St John and William Fraser
• 1789: James Bland Burgess and Dudley Ryder
• August 1789: James Bland Burgess
• January 1796: George Canning
• April 1799: John Hookham Frere
• September 1800: Edward Fisher
• February 1801: Lord Hervey
• November 1803: Charles Arbuthnot
• June 1804: The Hon. William Eliot
• February 1805: Robert Ward
• February 1806: The Hon. George Walpole and Sir Francis Vincent, Bt
• March 1807: Viscount FitzHarris
• August 1807: The Hon. Charles Bagot
• December 1809: Culling Charles Smith
• February 1812: Edward Cooke
• January 1822: Earl of Clanwilliam
• January 1823: Lord Francis Conyngham
• July 1824: Lord Howard de Walden
• January 1826: Marquess of Clanricarde
• June 1828: Lord Dunglass
• November 1830: Sir George Shee, Bt
• November 1834: Viscount Fordwich
• December 1834: Viscount Mahon
• April 1835: The Hon. William Thomas Horner Fox-Strangways
• March 1840: Viscount Leveson
• September 1841: Viscount Canning
• January 1846: The Hon. George Augustus Frederick Percy Sydney Smythe
• July 1846: Edward John Stanley
• February 1852: Austen Henry Layard
• May 1852: Lord Stanley
• December 1852: Lord Wodehouse
• July 1856: Earl of Shelburne
• February 1858: William Robert Seymour Vesey Fitzgerald
• June 1859: Lord Wodehouse
• August 1861: Austen Henry Layard
• July 1866: Edward Christopher Egerton
• December 1868: Arthur John Otway
• January 1871: Viscount Enfield
• February 1874: R. Bourke
• April 1880: Sir Charles Dilke
• January 1883: Lord E. Fitzmaurice
• June 1885: R. Bourke
• February 1886: James Bryce
• August 1886: Sir J. Ferguson
• September 1891: J. W. Lowther
• August 1892: Sir Edward Grey
• June 1895: George Nathaniel Curzon
• October 1898: William St John Brodrick
• November 1900: Viscount Cranborne
• October 1903: Earl Percy
• December 1905:
  incomplete

  Permanent Under-Secretaries of State for Foreign Affairs, 1790-1968

• 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 U. Addington
• 1854: Edmund Hammond (later Lord Hammond)
• 1873: Lord Tenterden
• 1882: Sir Julian Pauncefote (later Lord Pauncefote)
• 1889: Sir Philip Currie
• 1894: Sir T.H. Sanderson (later Lord 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 W. 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)