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Daniel J. O'Brien Partner

Chair, Plaintiff's Personal Injury Group
Philadelphia, PA | Direct 215.864.7168Fax 215.789.7668
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Dan O'Brien has extensive experience representing seriously injured individuals in a wide range of areas, including products liability, industrial accidents, premises liability accidents, construction site accidents, sports and recreation accidents and vehicular accidents. (See the Plaintiff's Personal Injury Group website at He is an active triathlete and cyclist and often represents individuals who have been injured in racing and training accidents due to negligence or product failures.

Dan and his team of experienced lawyers and support staff represent individuals who have suffered the most serious types of injuries, including quadriplegia, brain damage, catastrophic orthopedic injuries and severe burns. Dan and his team work closely with a wide range of expert witnesses including neurologists, neuropsychologists, orthopedic surgeons, pain management doctors, plastic surgeons, vocational rehabilitation experts, economists, engineers, architects and others to thoroughly develop their clients' cases from both a damages and liability perspective.

All personal injury cases are handled on a contingent fee basis. There is never any charge to the client. Dan is available for telephone or face-to-face consultations. 

During law school, Dan served as Editor of the Villanova Law Review.

Recognition & Involvement

Dan was recently selected by his peers for inclusion in The Best Lawyers in America 2019 list in the practice area of Personal Injury Litigation - Plaintiffs. He was also selected as a Pennsylvania "Super Lawyer" in 2005 and 2006 and is AV® rated by the Martindale-Hubbell peer review rating system.

Outside of his law practice, Dan is very active in his community and serves on the CYO Board of St. Helena Parish. He served for five years as the Athletic Director of the St. Helena School and two years as President of the Whitpain Recreation Association. He is also a member of the Legal Committee of USA Triathlon, the national governing body for the sports of triathlon and duathlon. Dan also sits on the Whitpain Township Parks and Open Spaces Board.

Bar and Court Admissions


New Jersey


Villanova University School of Law, JD, 1984

Montclair State College, BA, 1980

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