Sir Arthur Cuninghame Grant Duff KCMG (23 May 1861 – 11 April 1948) was a British diplomat who was Minister to several countries.
After serving in Vienna, Stockholm and Peking he was recalled to London in 1897 and spent three years working at the Foreign Office.
In 1906 he was appointed chargé d'affaires at Darmstadt and Karlsruhe (then the capitals of the Grand Duchies of Hesse and Baden respectively),[4] but after only six months he was sent to Havana as Minister to Cuba.
[5] In the summer of 1909 he returned to Europe and the courts of minor German states, combining the roles of Minister Resident at Dresden (Kingdom of Saxony) and at Coburg (Saxe-Coburg-Gotha) and Chargé d'Affaires at Waldeck-Pyrmont.
Arthur Grant Duff was knighted KCMG in the King's Birthday Honours of 1924 at the end of his service in Chile.