Sir Archibald Clerk Kerr, Lord Inverchapel (d. 1951) was a British diplomat.

An Australian-born Scot he entered the Foreign Service in 1906. He served as Ambassador to China during the Japanese occupation of the late 1930s, he was moved to Moscow in February 1942 where he forged a remarkable relationship with Stalin. His work there and at the Big Three Conferences put him at the very centre of international politics. The Dalriada Scots originated from Ireland, from the north of the now-called countyAntrim. ... The Foreign and Commonwealth Office (FCO) is the United Kingdom government department responsible for promoting the interests of the United Kingdom abroad. ... Saint Basils Cathedral and Spasskaya Tower of Moscow Kremlin at Red Square. ...   Joseph Stalin? (December 21, 1879 – March 5, 1953) was the leader of the Soviet Union from mid-1920s to his death in 1953 and General Secretary of the Communist Party of the Soviet Union (1922-1953), a position which had later become that of party leader. ...

After the war he was appointed Ambassador to the United States of America where, as the Cold War developed, he oversaw the Marshall Plan and the creation of NATO. He was created Baron Inverchapel in 1946. An acquaintance of Guy Burgess and Donald Maclean's superior in Washington, he took their defection to the USSR badly, the shock hastening his early death in 1951. For the generic term for a high-tension rivalry between countries, see cold war (war). ... U.S. postage stamp issued 1997 honoring the 50th anniversary of the Marshall Plan. ... Guy Francis De Moncy Burgess (1911-1963) was a flamboyant, homosexual, British-born intelligence officer and double agent who worked for the Soviet Union, was part of the Cambridge Five spy ring within the MI5. ...

His personal life was no less colourful: a close confidant of the Kaiser's sister in the years before the Great War, he was also a disappointed suitor of the Queen Mother before his marriage, divorce, and re-marriage, to a Chilean 29 years his junior. Left-wing, anti-imperialist, and unconventional in approach, he has been viewed by some observers as potentially a communist agent himself.

During his time as British Ambassador to Moscow, he famously wrote to Lord Pembroke at The Foreign Office in London the following letter:

"My Dear Reggie,

In these dark days man tends to look for little shafts of light from Heaven. My days are probably darker than yours, and I need, my God I do, all the light I can get. But I am a decent fellow, and I do not want to be mean about what little brightness is shed upon me from time to time. So I propose to share with you a tiny flash that has illuminated my sombre life, and tell you that God has given me a new Turkish colleague whose card tells me he is called Mustapha Kunt.

We all feel like that, Reggie, now and then, especially when Spring is upon upon us, but few of us would care to put it on our cards. It takes a Turk to do that.

Sir Archibald Clerk Kerr

H.M. Ambassador, Moscow"