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I am a highly experienced litigator with over 25 years’ experience in representing clients at all court levels, including the Commercial Court, Court of Appeal and Supreme Court across the commercial, insurance, and public sectors.

I specialise in the resolution of commercial disputes and have significant experience in commercial litigation, insurance claims & disputes and property related cases.

I advise clients on all manner of claims for breach of contract, shareholder disputes, specific performance litigation, judicial reviews, professional indemnity claims, planning and environmental law, injunctions, Norwich Pharmacal Orders and procurement law issues.

I represent most domestic and numerous international underwriters and re-insurers. I advise some of Ireland’s most successful organisations and regularly conduct High Court and Commercial Court litigation on their behalf.

I regularly represent employers at the Workplace Relations Commission and The Labour Court in respect of employment related disputes.

I advise clients on health and safety risks, defend organisations & executives in respect of Health and Safety Authority inspections and prosecutions, and represent clients in respect of coroner inquests and any related civil proceedings that follow. 

I have specialist experience advising clients on cyber-crime and legal issues relating to cyber protection measures, and I also provide training in this area.

I provide advice that is clear and concise, communicating technical concepts in a way that is accessible for clients. I am a CEDR accredited mediator who regularly represents clients in mediation and also acts as a mediator.

I regularly present lectures, training and workshops, for the Insurance Institute of Ireland and its members in relation to litigation and insurance matters.

What others say…

Killian O’Reilly benefits from expertise in an array of commercial and contractual disputes, including those relating to cyber-breaches or the termination of distribution contracts. He is also well versed in insurance dispute.

Chambers Europe 2020

Killian O’Reilly draws on a strong base of experience to assist clients with a diverse range of commercial disputes. One interviewee describes him as “clear, concise and very commercially driven.”

Chambers Europe 2019

The “impressive” Killian O’Reilly, “a seasoned, reliable lawyer.” He “has the underlying technical knowledge and experience, and is also well organised and keeps things moving at an efficient pace.”

Chambers Europe 2018

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