Hannah Crowther


Hannah advises on all areas of data protection and privacy law, helping multinational and UK organisations navigate the changing landscape of EU and UK data protection law including the General Data Protection Regulation (GDPR) and ePrivacy.

Hannah’s practice covers a wide range of EU and UK data protection and privacy issues, including ‘accountability’, data transfers, Binding Corporate Rules, adtech, data subjects rights, Artificial Intelligence and direct marketing.

Her practice also includes a significant amount of contentious work, advising clients on managing personal data breaches and enforcement by the UK Information Commissioner’s Office (ICO) and other EU data protection authorities, including the CNIL and Irish Data Protection Commission.

Hannah is also increasingly advising in the growing area of data protection litigation, assisting with cases before the UK courts and the Court of Justice of the European Union.

In 2014 Hannah spent three months on secondment working in the Privacy team of a US law firm in Seattle, where she gained a valuable insight into data privacy law from a US perspective.


  • BA (Hons) Law, University of Oxford
  • Qualified 2012
  • Partner 2023


Data Protection publication

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What others say

"She manages significant client relationships and advice at speed." Chambers and Partners 2024
"She knows data protection well." Chambers and Partners 2024
“Hannah Crowther is a “rising star in the data protection and privacy field” with a proactive approach to compliance and a record of stellar performance as a litigator.” Who's Who Legal Data 2023
“Hannah Crowther is regularly called upon to provide data protection advice to high-profile companies. Her capabilities span a broad spectrum of matters ranging from data breaches to subject access requests.” Chambers and Partners 2023
“She is responsive, commercial, pragmatic, friendly and ticks all the boxes of what you want in a solicitor.” Chambers and Partners 2023
“Hannah knows the law well and understands the pragmatic landscape. She knows how to cut through to central issues and can make risk-based decisions whilst being pragmatic.” Chambers and Partners 2023
“Hannah is unbelievably good on data protection. She is highly impressive and solutions focused.” Chambers and Partners 2023
“Hannah Crowther is a real rising star.” Legal 500 2023
Hannah is “is very good, proactive and diligent.” Chambers and Partners 2022
“She's an excellent associate. She is really smart, has good experience and a good eye for what will work and she comes up with practical solutions.” Chambers and Partners 2022
“Hannah Crowther is a very impressive associate who is going from strength to strength.” Legal 500 2022
"Her [Hannah Crowther] capabilities span a broad spectrum of matters ranging from data breaches to subject access requests" Chambers and Partners 2021
"Hannah Crowther is wonderful." Legal 500 2021
Hannah is "excellent". Legal 500 2020
Hannah Crowther is "extremely pragmatic, responsive and supportive." Chambers and Partners 2020
Hannah is "a problem solver" Chambers and Partners 2020
"Hannah Crowther 'gives practical answers, understands the law and is a really good person to work with'." Chambers and Partners 2019
Hannah Crowther is " a standout associate". Chambers and Partners 2018
"Collaborative, thoughtful and has the rare ability to be both pragmatic and on top of the details" Chambers and Partners 2018
"Associate Hannah Crowther joins the rankings this year on the back of a growing reputation for her expert counsel in a range of data protection issues. Sources say: 'She has a very calm demeanour with steel underneath'." Chambers and Partners 2017

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