Harriet Moynihan

Senior Research Fellow, International Law Programme


Harriet is a senior research fellow in the International Law programme, where she leads the programme’s cyber work.

This work focuses both on the role and value of international human rights law in internet governance - including in addressing online content moderation and disinformation - and the role and application of international law in responsible state behaviour in cyberspace.

Harriet is the author of Chatham House’s research paper The Application of International Law to State Cyber Operations: Sovereignty and Non-intervention and speaks regularly on these issues.

As part of her research in these areas, Harriet was a visiting research fellow at the Bonavero Institute of Human Rights, University of Oxford in 2019. Harriet’s work also focuses on China and the International Legal Order, and support for civil society space by the private sector.

Prior to joining Chatham House, Harriet was a legal adviser in the UK Foreign and Commonwealth Office from 2002-2012, where she advised on a wide range of public international law issues. Before that, Harriet was an associate solicitor at Clifford Chance LLP.

Past experience

2015-20 Associate fellow, International Law programme, Chatham House
2019 Visiting fellow, Mansfield College, Oxford
2019 Visiting research fellow, Bonavero Institute of Human Rights, University of Oxford
2013-15 Masters in International Human Rights Law, New College, University of Oxford
2004-12 Assistant Legal Adviser, Foreign & Commonwealth Office
2003-04 Postgraduate Diploma in Competition Law, Kings College, London
2001-04 Associate Solicitor, Clifford Chance LLP
1994-97 MA (Hons) Classics, Trinity Hall, University of Cambridge


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