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Mark Sedwill Biography

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Mark Sedwill, Baron Sedwill of Sherborne GCMG FRGS LLD

Mark Sedwill, Baron Sedwill of Sherborne GCMG FRGS LLD, is a cross-bench member of the House of Lords, Chairman of Geopolitical Advisory and Saudi Arabia for Rothschild & Co and a non-executive director of Lloyd’s of London and BAE Systems. He chaired the 2021 G7 Panel on Global Economic Resilience and is Chairman of the Atlantic Future Forum.  

Lord Sedwill was Cabinet Secretary & Head of the Civil Service (2018-20), National Security Adviser (2017-20), Permanent Secretary at the Home Office (2013-17), and British Ambassador and NATO Representative in Afghanistan (2009-11). Before that he had a diplomatic and security career serving in Egypt, Syria, Jordan, Cyprus and Pakistan.  

Educated at St Andrews and Oxford Universities, Lord Sedwill is a Fellow of the Royal Geographical Society and of the Institute of Directors, an Honorary Fellow of Oxford University and of St Edmund Hall, Oxford.  He is President of the Special Forces Club, a member of the IISS Advisory Council, a Trustee of the RNLI, an Honorary Colonel in the Royal Marines, an Honorary Doctor of Laws of St Andrews University, and an Honorary Bencher of Middle Temple. He is also the recipient of several awards and honours for national and international public service.