Jonathan is an experienced dispute resolution partner advising both public and private sector clients on a range of disputes and litigation issues.

Jonathan is a graduate of the University of Wales, College Cardiff. He trained with Geldards qualifying in 1991, when he joined the firm’s dispute resolution team. He became a Partner in 2002.

Jonathan specialises in public sector litigation particularly judicial review. He regularly advises on procurement disputes and has participated in public enquiries. He also advises on contract, defamation and media related disputes.

Jonathan played water polo at international level for 12 years and still plays an active role in the sport, particularly as an administrator. He has been a member of the Amateur Swimming Association’s Independent Disciplinary and Dispute Resolution Judicial Panel.

Jonathan was born and brought up in Skewen. He now lives in Cardiff with his partner and two teenage sons.


"Jonathan Griffiths: grasps the issues quickly; gives sound, pragmatic advice; has excellent technical knowledge; understands the commercial context and the sensitivities for us as a client."
Legal 500, 2021

"We always receive an excellent service. The partners are very responsive and attentive to our needs. They have been extremely effective in helping us solve problems and advising on the best way to proceed."
Chambers & Partners 2021

"Jonathan Griffiths's practice is focused on resolving public sector disputes, and he frequently secures instructions to act on judicial reviews. He played a key role advising the Wrexham County Borough Council on an application for a judicial review to quash a decision by the Welsh Ministers."
Chambers & Partners Directory, 2017

"Jonathan Griffiths is recognised for his expertise in disputes within the public sector disputes, handling matters such as judicial reviews and statutory challenges. One client describes him as 'very methodical and he thinks outside the box'."
Chambers & Partners Directory, 2016


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    Geldards Public Sector Wales Webinar Programme 2021
    These are unprecedented times, but helping you overcome challenges is what Geldards does best. As part of our commitment to supporting you through this challenging period, the Geldards Public Sector Wales Team will deliver a series of training and legal update webinars in 2021.