Mary Cooney

Partner

Mary Cooney is a Partner in our Litigation & Investigations Department.

Mary Cooney

Mary holds a qualification in Bachelor of Civil Law (Hons) and Masters in Law (LLM) from University College Cork. Mary also holds a Certificate in Healthcare Law from the Law Society of Ireland, a Diploma in Professional Regulation from University College Dublin and in 2023 graduated with first class honours from a Masters in Healthcare Law and Ethics in Royal College of Surgeons (RCSI) in Ireland.

Mary specialises in healthcare law and regulation. She has particular expertise in the defence of complex clinical negligence cases, the defence of multi-party product liability claims and advising clients on regulatory compliance within the healthcare sphere.

Recent significant matters include:

  • providing specialist advice in high value and complex clinical, professional and product liability claims before all courts and before professional regulatory authorities and within inquiries by the Health Service Executive. Mary has also advised in Inquests and a Commission of Inquiry.
  • currently working with the team advising a laboratory defending a significant cohort of claims within the CervicalCheck litigation. Mary’s experience in this field includes advising in 2021 on the first claims mediated within the newly established CervicalCheck Tribunal.
  • During 2021, she also advised a genetic testing service in Scotland NHS in relation to pre-natal screening it provided to an Irish maternity hospital. This was the first case before the Irish Courts considering the Health (Regulation of Termination of Pregnancy) Act 2018.
  • advising a cohort of Consultant Orthopaedic Surgeons in respect of litigation arising from the worldwide recall of a medical device.
2026 Legal 500 EMEA
2025 Legal 500 EMEA
2021 IFLR Rising Stars Awards EMEA
Mary is recognised by the IFLR Rising Stars Awards EMEA 2021 for her work in Product Liability. The Rising Stars Awards aims to recognise the outstanding work being done by the region's emerging leaders.

Practice Areas

Product Recall
Litigation & Investigations
Pharmaceuticals & Biotechnology
Healthcare
Medical Devices & Technologies

Related Sectors

Life Sciences, MedTech & Healthcare 
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Article and Insights

Home Support Providers Act Signed into Law

The Health (Amendment) (Home Support Providers) Act 2026 establishes a statutory registration and inspection framework for home support providers.

Mary Cooney
Partner
Mary Cooney
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Article and Insights

Sanofi Pasteur SA: An Important ECJ Ruling on Defective Products

Defective Products: the ECJ confirms its position on dual liability, time limits and access to justice.

Mary Cooney
Partner
Mary Cooney
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Article and Insights

Medical Council Publishes Statement on Use of AI in Clinical Decision-Making

The Medical Council released a position statement on the use of AI in clinical decision-making, offering guidance for doctors.

Mary Cooney
Partner
Mary Cooney
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The Enhanced Games: Breaking Records and Ethical Boundaries

Sports and Entertainment Group examines some key legal considerations associated with the Enhanced Games, a competition permitting performance enha...

Leo Moore
Partner
Leo Moore
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Article and Insights

Government Approves Health Bill on Home Support Providers

The government has approved the publication of the Health (Amendment) (Home Support Providers) Bill 2025

Mary Cooney
Partner
Mary Cooney
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Article and Insights

Medical Negligence: Appeal on Costs Differential Order Dismissed

The Court of Appeal dismissed an appeal on quantum and costs in a post-surgery scarring claim.

Margaret Muldowney
Consultant
Margaret Muldowney
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Article and Insights

“Very, Very Modest Awards”: GDPR & Personal Injury Claims

The Supreme Court has held that any emotional distress short of a recognised psychiatric disorder is not a personal injury in the context of data b...

Rachel Hayes
Partner
Rachel Hayes
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Article and Insights

Update: Transposition of Revised Product Liability Regime by 2026

The Revised Product Liability Directive came into force six months ago and must be transposed into Irish law by 9 December 2026.

Mary Cooney
Partner
Mary Cooney
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Article and Insights

Commission Revamps MIR Form for MDR and IVDR Compliance

In May 2025, the European Commission released a new version of the Manufacturer Incident Report form, with mandatory compliance required by Novembe...

Mary Cooney
Partner
Mary Cooney
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Article and Insights

Clinical Negligence List in Irish High Court Established

Two new High Court Practice Directions establish a Clinical Negligence List and prescribe trial date application guidelines.

Mary Cooney
Partner
Mary Cooney