Arthur Ronald Nall Nall-Cain, 2nd Baron Brocket KStJ (4 August 1904 – 24 March 1967) was a prominent British Nazi sympathiser and Conservative Party politician in the United Kingdom.

Brocket, who considered Minister for Foreign Affairs Joachim von Ribbentrop a close personal friend, was so enamoured with Nazi Germany, he attended Hitler's 50th birthday celebration in Berlin in 1939.

[4] According to Neville Chamberlain, Foreign Secretary, the Earl of Halifax used Brocket as a conduit to convey the views of the British government to the leading German Nazis.

Brocket also worked closely with the historian Arthur Bryant, who shared his far right views, to bring the negotiations to the attention of the UK Foreign Office.

[3] As an absentee landlord, he only used the Knoydart estate for shooting and fishing while opposing the rights of crofters and dismissing and evicting workers.

He ordered that anything which might have been used or touched by SOE agents removed from Inverie House; all the cutlery, crockery and toilets were dumped in the sea at the mouth of Loch Nevis.

[10] Together, they were the parents of:[1] Through his eldest son, he was a grandfather to convicted fraudster Charles Ronald George Nall-Cain, 3rd Baron Brocket (b.