John O'Connor


+353 1 639 5183

John is a Partner in William Fry’s Technology Group, the most experienced technology law team in the Irish market. He specialises in complex and large scale technology and outsourcing transactions including systems integration and implementation arrangements, licensing, IT and business process outsourcings and cloud services.

John is also a specialist in the area of privacy, data protection and cyber security law and advises on general compliance, data transfers, hosting, issue management and best practice. He has gained particular experience of advising technology, life sciences and financial services organisations on major outsourcings and on ‘big data’ projects including the procurement and deployment of FinTech. He is a highly experienced lawyer and prior to joining William Fry led the Technology and Data Protection practices of another leading Irish law firm.

Recent work includes advising:

  • several of the world’s largest technology and social media organisations on systems implementations, licensing, cloud services and data protection matters;
  • several global life sciences companies on the arrangements that underpin clinical trials, contract manufacturing arrangements, data analytics projects and public sector tenders;
  • one of Ireland’s main clearing banks on several outsourcings and technology procurements; 
  • on the largest and most complex outsourcings in the Irish market to date. 

John is Chair of the Irish division of The Society for Computers and Law, the leading organisation in the UK and Ireland for technology lawyers. He is a member of the Irish Government Data Forum, which was established in 2015 to consider data protection and digital technology and to assist with the formulation of best practice. John is also a member of the FinTech Strategy Committee of the Fintech & Payments Association of Ireland. 

John is a frequent public speaker and has been widely published in legal and business journals in Ireland, the US and the UK. Publications which he has authored include: The Privacy, Data Protection and Cybersecurity Law Review 2nd edition - Irish Chapter (2015); PLC Outsourcing Handbook - Irish Chapter 2013/14/15; and International Comparative Legal Guide to Data Protection in Ireland 2014/15.

According to sources in Chambers Europe 2017, John has significant experience of advising technology, life sciences and financial services organisations on an array of technology-related matters. Clients say that he is "incredible to work with."

John is ranked as a Leading Individual in Legal 500 EMEA 2017 in the Irish IT market.

John is recognised in Best Lawyers 2018 under 'The Best Lawyers in Ireland' for work in  Technology Law.

In Chambers Europe 2015, John is described by sources as "really top-class, very seasoned and provides excellent guidance as we go through the transactions. He gives very pragmatic advice, is really responsive and pays strong attention to detail". John is named in Legal 500 EMEA 2015 as one of the leading individuals in the Irish TMT market with “invaluable market knowledge” and a "particularly good negotiator"

John is recognised as an expert by 'Who's Who Legal' in Information Technology and Telecoms and Media.


JohnOConnorLegal 500 2017

Whos Who Legal

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