The Hon. Iarfhlaith O'Neill (r'td.) Panellist

The Hon. Iarfhlaith O'Neill (r'td.)


Following retirement as a highly respected Judge of the High Court, Iarfhlaith mediated and settled several highly contentious High Court actions. He currently chairs a panel of ten evaluators resolving the Depuy Hip Implant litigation through ADR processes and serves as a government appointed Independent Assessor in litigation affected by a decision of the European Court of Human Rights.

An Accredited Mediator, Iarfhlaith has significant experience of all types of commercial, professional and financial disputes. He also has substantial expertise in probate disputes and construction issues arising from 10 years as the Probate Judge in the High Court and 9 years involvement in the planning and overseeing of numerous courthouse construction projects on behalf of the Court Service.


1972: BA (History & Economics) University College Dublin

1975: Barrister at Law, Kings Inn, Dublin


1975: Bar of Ireland

1986: Bar of England & Wales

1989: Senior Counsel

1989 to 1995: Vice-Chairman of the Employment Appeal Tribunal

1991 to 1995: Member of the Legal Aid Board


1999 - 2014: Judge of The High Court of Ireland

2008: Chairman Referendum Commission for first Lisbon Treaty Referendum

2008 - 2011: Nominated by Chief Justice as member of the Board of the Court Service


2014 to date: Chairman Mental Health [Criminal Law] Review Board

2015: Government appointed Monitor of Irish Bank Resolution Corp. review

2015: Chairperson of Central Bank Inquiry concerning insurance

2016: Government appointed Reviewer of matters concerning An Garda Siochana


Iarfhlaith is married with an adult daughter. He is proficient in Irish and likes to read history and economics. A champion rower at college, he enjoys golf, cycling and whenever he gets the chance, swimming in the Atlantic.