The sources of information for the following list of British diplomats are extracted from Gazetteer of the Persian Gulf, Oman and Central Arabia by J.G.Lorimer (Calcutta, 1908-15) and various annual reports in the Foreign Office confidential prints.
- Sir Harford Jones (Brydges), Envoy Extraordinary 1807-11
- Sir Gore Ouseley, Ambassador 1810-14
- Mr James Morier, Minister Plenipotentiary Apr 1814-Oct 1815
- Sir Henry Ellis, (Deputy) Minister Plenipotentiary 13 April 1814
- Mr Henry Willcock, Chargé d'Affaires 1815-22, 1823-26
- Major G.Willcock, (Deputy) Chargé d'Affaires 1822-23
- Colonel John MacDonald, Envoy Extraordinary from the Indian Government 29 July 1826
- Sir John Campbell, Appointed to negotiate a treaty 4 December 1833
- Sir Henry Ellis, Ambassador 1835-36
- Sir John MacNeill, Envoy Extraordinary and Minister Plenipotentiary 1836-42
- Lieutenant-Colonel Sir Justin Sheil, Secretary of Legation at Teheran February 1836; Head of the Mission to Persia 1839-44; Envoy Extraordinary and Minister plenipotentiary 1844-54
- Lieutenant-Colonel Francis Farrant, Chargé d'Affaires 1847-49
- Sir William Taylour Thomson, Chargé d'Affaires November 1849, 1853-55
- Sir Charles Murray Envoy Extraordinary and Minister Plenipotentiary 1854-55, 1857-58
- Sir William Doria, Chargé d'Affaires 1858-59
- Lieutenant-Colonel Sir Henry Rawlinson, Envoy Extraordinary and Minister Plenipotentiary 1859-60
- Sir Ronald Thomson, Chargé d'Affaires Nov - Dec 1859
- Mr Charles Allson, Envoy Extraordinary and Minister Plenipotentiary April 1872
- Captain (Colonel Sir) Lewis Pelly, Chargé d'Affaires May-July 1860
- Sir Ronald Thomson, Chargé d'Affaires Nov-Dec 1862
- Mr Edward Eastwick, Chargé d'Affaires Dec 1862-Jan 1863
- Sir Ronald Thomson, Chargé d'Affaires 1863, 1869-70
- Mr William Dickson, Chargé d'Affaires Apr - May 1872
- Sir Ronald Thomson, Chargé d'Affaires 1872-73
- Sir William Taylour Thomson, Envoy Extraordinary and Minister Plenipotentiary 1872-79
- Sir Ronald Thomson, Chargé d'Affaires 1878-79. Envoy Extraordinary and Minister Plenipotentiary 1879-87
- Sir Arthur Nicolson, Chargé d'Affaires 1885-88
- Sir Henry Drummond Wolff, Envoy Extraordinary and Minister Plenipotentiary 1887-91
- Mr Robert John Kennedy, Chargé d'Affaires 1889, Nov 1890, Nov 1891
- Sir Frank Lascelles, Envoy Extraordinary and Minister Plenipotentiary 1891-94
- Sir William Conynham Greene, Chargé d'Affaires 1894
- Sir Mortimer Durand, Envoy Extraordinary and Minister Plenipotentiary 1894-1900
- Lord (Charles) Hardinge, Chargé d'Affaires 1897-98
- Sir Cecil Spring Rice, Chargé d'Affaires 1900-1901
- William Erskine, Chargé d'Affaires Oct - Nov 1902
- Sir Arthur Henry Hardinge, Envoy Extraordinary and Minister Plenipotentiary 1900-06
- Mr Evelyn Grant Duff, Chargé d'Affaires 1904, 1905
- Sir George Head Barclay, Envoy Extraordinary and Minister Plenipotentiary 1908-12
- Sir Walter Beaupre Townley, Envoy Extraordinary and Minister Plenipotentiary 1912-15
- Sir Charles Murray Marling, Envoy Extraordinary and Minister Plenipotentiary 1915-18
- Sir Percy Zachariah Cox, Envoy Extraordinary and Minister Plenipotentiary 1918-20
- Herman Cameron Norman, Envoy Extraordinary and Minister Plenipotentiary 1920-21
- Sir Percy Loraine, Envoy Extraordinary and Minister Plenipotentiary 1921-26
- Sir Robert Henry Clive, Envoy Extraordinary and Minister Plenipotentiary 1926-31
- Sir Reginald Hervey Hoare, Envoy Extraordinary and Minister Plenipotentiary 1931-34
- Sir Hughe Montgomery Knatchbull Hugesson, Envoy Extraordinary and Minister Plenipotentiary 1934-36
- Sir Horace James Seymour, Envoy Extraordinary and Minister Plenipotentiary 1936-39
- Sir Reader William Ballard, Envoy Extraordinary and Minister Plenipotentiary; Ambassador from Feb 1944. 1939-46
- Sir John Haller Le Rougetel, Ambassador 1946-50

