Sir Peter Westmacott

Senior Adviser, US and the Americas Programme

Headshot of Peter Westmacott


Sir Peter Westmacott draws on over 40 years of diplomacy, including four years in Iran and ending with 14 years as British Ambassador to Turkey, France and then the US, to contribute to Chatham House’s understanding of international affairs, help improve transatlantic links, and foster dialogue, particularly with countries that are less well understood in the West.

He brings a wealth of experience from his diplomatic career. After retiring from the Foreign and Commonwealth in January 2016, he spent a semester teaching and lecturing at Harvard’s Kennedy School as a fellow of the Institute of Politics and of the Belfer Centre for Science and International Affairs.  

Since returning to the UK, Sir Peter has taken up appointments as an independent non-executive at Ernst & Young, chair of the international advisory board of Tikehau Capital, distinguished ambassadorial fellow at the Atlantic Council, and board positions with We. Soda Ltd, Volex Plc, Campbell Lutyens & Co and Glasswall Holdings.

He also speaks regularly at international conferences, and on radio and television.

Past experience

2018 Resident fellow, Kennedy School of Government, Harvard
1972-2016 HM Diplomatic Service
1969-72 MA in European History and French, New College, Oxford