Sir Marrack Goulding KCMG (2 September 1936 – 9 July 2010) was a British diplomat who served more than eleven years as Under-Secretary-General of the United Nations.

[2][3] On 1 January 1986, Goulding became Under-Secretary-General (USG) of the United Nations for Special Political Affairs,[2][4] serving under Secretary-General Javier Pérez de Cuéllar.

[7] According to Simon Chesterman of the New York University School of Law, the period of Goulding's service as head of UN peacekeeping – which saw the initiation of sixteen new missions – "may come to be regarded as its heyday".

While the government discounted the criticisms raised in the letter, Goulding suggested that the opinions expressed therein were also held by current employees of the Foreign Office.

[13] Goulding was a recipient of the Duke of Westminster's Medal for Military Literature, awarded by the Royal United Services Institute for authorship of books that make "a notable and original contribution to the study of international and national security and defence".