Ms Fiona O'Beirne > McCann FitzGerald > Dublin, Ireland > Lawyer Profile

McCann FitzGerald

Work Department

International Disputes, Intellectual Property, Alternative Dispute Resolution


Fiona has practised for over 25 years in the area commercial litigation and dispute resolution. She advises international and domestic clients on patent litigation and other intellectual property disputes. Her practice also includes large scale commercial litigation, with a focus on complex international, regulatory and banking disputes.


Qualified in 1991


Graduate of University College Dublin BCL

Lawyer Rankings

Ireland > Healthcare and life sciences

(Leading individuals)

Fiona O’BeirneMcCann FitzGerald

The ‘very capable‘ team at McCann FitzGerald has extensive experience in litigation in the healthcare and life sciences sectors, with particular expertise in product liability disputes and patent litigation. The team also handles a range of non-contentious matters, including corporate transactions for leading pharmaceutical companies and regulatory issues, particularly in relation to pricing and reimbursements and medical devices. The practice is led by Roddy Bourke, who is highly regarded for his product liability expertise; Fiona O’Beirne, who has extensive experience representing originator companies in patent litigation; and David Lydon, who handles corporate matters.

Ireland > Intellectual property

(Leading individuals)

Fiona O’BeirneMcCann FitzGerald

McCann FitzGerald is known for its work in complex patent litigation. In 2020, the team’s caseload included acting for telecoms companies on breaches of copyright by their customers, and handling related Norwich Pharmacal orders, as well as representing clients in multi-jurisdictional disputes involving pharmaceutical patents. Fiona O’Beirne leads on contentious IP matters, while Paul Lavery handles non-contentious work including IP registration and licensing. Shane O’Brien also handles IP litigation, and is praised by clients as ‘excellent in every way‘. Adam Finlay is noted for his work on commercial agreements concerning the use of intellectual property assets.