Sir Geoffrey Wedgwood Harrison GCMG KCVO (18 July 1908 – 12 April 1990) was a British diplomat, who served as the United Kingdom's ambassador to Brazil, Iran and the Soviet Union.

Harrison's tenure in Moscow was terminated in 1968, when he was recalled to London after his admission to the Foreign Office that he had an affair with his Russian maid, later revealed as a KGB "honey trap" operation.

[9] He was also the principal drafter of Article XII of the Potsdam Agreement, which concerned the expulsion of ethnic Germans from central and eastern Europe after World War II.

When security concerns arose over the Soviet occupation of Czechoslovakia, and after he had been sent incriminating photographs taken by the KGB,[15] Harrison informed the Foreign Office of his indiscretion, which immediately terminated his appointment and recalled him to Britain.

[16] The journalist and author John Miller, who was part of the British press corps in the Soviet Union at the time of Harrison's ambassadorship, revealed more details of the affair in his memoir All Them Cornfields and Ballet in the Evenings: Miller named the maid with whom Harrison was involved as Galya Ivanov and said he was told that by a Russian contact that she was not only a KGB agent but also the sister of Eugene Ivanov, the Soviet naval attaché in Britain involved in the Profumo affair.