01: Attorneys

J. Brendan O’Brien

  • Phone:

    (215) 575-4390
  • Fax:

    (215) 563-2583
  • Email:

  • Office:

Practice Areas

Bar Admissions

Court Admissions

U.S. District Court for the Western District of Pennsylvania


Brendan O’Brien is a partner in the Philadelphia office of Rawle & Henderson LLP. He concentrates his law practice on the defense of employers and insurers in workers’ compensation matters. Brendan has over 26 years of experience in litigation before workers’ compensation judges, the Workers’ Compensation Appeal Board, and the Pennsylvania Appellate Courts. He has successfully defended clients in multiple cases of first impression before the Commonwealth and Supreme Courts of Pennsylvania, including the landmark Larry HarveyPennsylvania Supreme Court Decision on pension benefit offsets.

Brendan has also lectured on a variety of workers’ compensation issues and provided consultation to employers on reducing workers’ compensation exposure.  He has been selected by his peers as a Pennsylvania Super Lawyer from his first year of eligibility in 2012 through 2019. This distinction is awarded to only the top 5% of lawyers in Pennsylvania.

Brendan earned his J.D. from the University of Pittsburgh School of Law in 1997 and B.S. degrees in Political Science and Business from Duquesne University in 1994. He is admitted to practice in Pennsylvania and the U.S. District Court for the Western District of Pennsylvania. He is a member of the Pennsylvania Bar Association, the Philadelphia Bar Association, and the American Inn of Court―Judge Alexander F. Barbieri Workers’ Compensation Chapter.

Prior to joining the Firm, Brendan was the Managing Partner for the Philadelphia office of a law firm primarily focused on insurance defense. He has also worked for the Commonwealth, Superior and Supreme Courts of Pennsylvania, the Office of the District Attorney in Allegheny County and the Allegheny County Law Department.


University of Pittsburgh School of Law, J.D., 1997
Duquesne University, B.S. Political Science and Business, 1994

Professional Associations

Pennsylvania Bar Association
Philadelphia Bar Association
American Inn of Court―Judge Alexander F. Barbieri Workers’ Compensation Chapter

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