Personal Injury Lawyer in New Jersey


Domhnall Ó’Catháin (Donny) is a New Jersey personal injury trial lawyer and a partner in the Personal Injury Department of Lesnevich, Marzano-Lesnevich, O’Cathain & O’Cathain, LLC. 

Donny has secured millions of dollars for his clients, including seven-figure settlements in medical malpractice cases, and trucking accident cases. In 2017, he won the largest dental malpractice verdict in New Jersey in a case where the defendant-dentist refused to make an offer to settle the case. In 2019, he won a $1.2 million-dollar verdict in a pedestrian knockdown case even though the defense’s final offer was $200,000. During the pandemic, he tried multiple virtual jury trials and is one of the few plaintiff attorneys to have successful outcomes in every one of those cases.

Donny represents people who were physically injured as the result of negligence, and families who have lost a loved one as the result of negligence or malpractice. He handles personal injury, wrongful death, and medical malpractice cases. The majority of his cases are in Bergen County, Essex County, Hudson County, Middlesex County, Passaic County, and Union County. He is often brought in as trial counsel for other personal injury law firms when one of their cases is being sent for a jury trial. 

Donny is certified by the Supreme Court of New Jersey as a Civil Trial Attorney. In New Jersey, only certified attorneys such as him are permitted to pay referral fees to other attorneys. He is also licensed to practice law in New York. 

Donny is originally from Ballincollig, County Cork, Ireland, and received his Bachelor of Civil Law degree from the University College Cork, Ireland, in 2000. In the United States, Donny graduated from Fordham University School of Law, where he was awarded an LLM in 2005, and from Rutgers University Law School, where he received his J.D. in the Foreign Lawyers Program in 2010.

Donny is a President of the Brehon Law Society of New York and past President of the Irish American Bar Association of New York. He is a member of the New Jersey State Bar Association and the New Jersey Association of Justice.

He resides in Hillsdale, New Jersey, with his wife and three children.