Eleonor Duhs is a Partner based in London in Marks & Clerk’s AI & Cyber Security legal advisory practice, where she serves as Head of Data & Privacy. She is a barrister advising on all aspects of data protection law, including the data protection aspects of AI, personal data breaches, international data transfers, data protection impact assessments, data sharing, data subject rights requests and anonymisation.
She is recognised for her extensive experience in data protection law, including her role as the UK government’s lead lawyer in the negotiations on the GDPR.
Before joining Marks & Clerk, Eleonor led a data & privacy practice in a law firm in the City of London. She was previously a Director in a first-tier European privacy practice, headquartered in London. Eleonor was a senior UK government lawyer prior to moving into private practice. In addition to negotiating the GDPR, she advised on EU and international law at the Foreign and Commonwealth Office. She also led on the core provisions of the European Union (Withdrawal) Act 2018 in the Department for Exiting the European Union as well as aspects of the EU-UK Withdrawal Agreement, and the Framework for the Future EU-UK relationship.
She is frequently invited to speak at international conferences and to comment on data protection and the UK’s post-Brexit legal frameworks in the national media. She has given evidence to Parliamentary Committees on data protection and the UK’s post-Brexit legal frameworks. She is currently co-authoring a second edition of her well-received book on Brexit: Retained EU Law: a Practical Guide and a book on AI regulation. She is a member of the Executive Board of the International Data Law Forum and an emeritus fellow of the International Association of Privacy Professionals. She has also won awards for her data protection work.
Eleonor speaks fluent Swedish and German.
Lexology Index | Recommended Individual | 2025
Legal 500 | Named Practitioner | 2026
Chambers & Partners | Named Practitioner | 2026
Barrister, Inns of Court School of Law (1998)
Common Professional Examination, City University (1997)
BA (Hons), English & German, University of Oxford (1996)
Eleonor Duhs is a Partner based in London in Marks & Clerk’s AI & Cyber Security legal advisory practice, where she serves as Head of Data & Privacy. She is a barrister advising on all aspects of data protection law, including the data protection aspects of AI, personal data breaches, international data transfers, data protection impact assessments, data sharing, data subject rights requests and anonymisation.
She is recognised for her extensive experience in data protection law, including her role as the UK government’s lead lawyer in the negotiations on the GDPR.
Before joining Marks & Clerk, Eleonor led a data & privacy practice in a law firm in the City of London. She was previously a Director in a first-tier European privacy practice, headquartered in London. Eleonor was a senior UK government lawyer prior to moving into private practice. In addition to negotiating the GDPR, she advised on EU and international law at the Foreign and Commonwealth Office. She also led on the core provisions of the European Union (Withdrawal) Act 2018 in the Department for Exiting the European Union as well as aspects of the EU-UK Withdrawal Agreement, and the Framework for the Future EU-UK relationship.
She is frequently invited to speak at international conferences and to comment on data protection and the UK’s post-Brexit legal frameworks in the national media. She has given evidence to Parliamentary Committees on data protection and the UK’s post-Brexit legal frameworks. She is currently co-authoring a second edition of her well-received book on Brexit: Retained EU Law: a Practical Guide and a book on AI regulation. She is a member of the Executive Board of the International Data Law Forum and an emeritus fellow of the International Association of Privacy Professionals. She has also won awards for her data protection work.
Eleonor speaks fluent Swedish and German.
Lexology Index | Recommended Individual | 2025
Legal 500 | Named Practitioner | 2026
Chambers & Partners | Named Practitioner | 2026
Barrister, Inns of Court School of Law (1998)
Common Professional Examination, City University (1997)
BA (Hons), English & German, University of Oxford (1996)