Ronan O’Neill

Ronan is a Partner in the Firm’s Dispute Resolution Law Department specialising in complex financial litigation issues, particularly in the Commercial Court. He also has an expertise in regulatory and statutory offences and remedies including Administrative sanction and the relief of Judicial Review. Ronan practises in the area of contentious intellectual property law, specifically trademark and copyright infringement cases. And he has extensive experience in administrative law, aviation law, medical law, personal Injury cases and also deals with Medical Regulatory matters.

Admitted as a solicitor in 1992
B.C.L. (1987), University College Dublin
Diploma in Professional Regulation, 2018, University College Dublin

Member of the International Association for the Protection of Intellectual Property (AIPPI) and the International Trade Mark Association (INTA). Ronan has been a member of the Law Society’s Litigation Committee for a number of years.

Achievements and Endorsements
Ronan is the author of articles on technology and copyright issues. Ronan has contributed on Law Reform Commission proposals on issues appropriate to litigation and mediations.

“Ronan is key for regulatory investigations”
Legal 500 EMEA, 2022

“Ronan defends key regulator clients both as co-defendants in major product liability claims and in judicial review proceedings relating to the authorisation of medicines. He also attracts attention from interviewees for his wider commercial disputes experience and is deemed a safe pair of hands.”
Chambers Europe, 2022 

“The experienced Ronan O’Neill…”
Legal 500 EMEA, 2021

“Ronan defends key regulator clients relating to the authorisation of medicines. He also attracts attention from interviewees for his wider commercial disputes experience.”
Chambers Europe, 2021

“Ronan O’Neill is recommended”
Legal 500 EMEA, 2020

“Ronan O’Neill is very approachable”
Legal 500 EMEA, 2019

Ronan O’Neill “handles a broad spectrum of disputes, with experience advising blue-chip companies, banks and regulatory bodies on proceedings”
Chambers Europe, 2019

“Ronan O’Neill is recommended”
Who’s Who Legal, 2019

Sources say that Ronan O’Neill “is practical and has an excellent rapport with clients
Chambers Europe, 2018

“Ronan O’Neill combines problem-solving and client care”
Legal 500, 2017

The “utterly unflappable” Ronan O’Neill is praised by sources for “always looking out for the interests of the client
Chambers Europe, 2017

Ronan O’Neill is recommended in the Hall of Fame in The Legal 500 EMEA, 2022

Ronan O’Neill is ranked as a Leading Individual in Chambers Europe, 2022


Ronan O’Neill

D: +353 1 202 6430