Sir Harold Anthony Nutting, 3rd Baronet (11 January 1920 – 23 February 1999) was a British diplomat and Conservative Party politician who served as a Member of Parliament from 1945 until 1956.

He was an internationalist, an early enthusiast for British membership of the European Economic Community and an Arabist who was a founding member of the Council for the Advancement of Arab-British Understanding (CAABU) in 1967.

In the worlds of the political writer Peter Kellner, "He belonged to, and was set fair to lead, a new generation of post-war Tories: moderate, inclusive and internationalist.

"And as long as any of the chief protagonists of the Suez war still held high office in Britain it would clearly have been a grave disservice to the nation, which they still led and represented in the councils of the world, to have told the whole story."

The crisis had caused so much bitterness that even eleven years after his resignation, he came under pressure from the Cabinet Secretary not to proceed and there was even a threat of prosecution under the Official Secrets Act.

In his later years, still a political outcast, he divided his time between writing biographies and histories in London, fox hunting in Shropshire and farming at Achentoul, Scotland.

In 1969, Nutting was banned from entering Israel because of a speech to students in Beirut in which he reportedly said that the Palestine question had to be resolved by force, and it was up to Palestinian guerillas to impose a solution.