John B. Galligan


John B. Galligan is head of the New York subrogation group. He litigates a variety of civil cases in state and federal court while focusing his practice in the areas of catastrophic property damage claims, product liability and commercial litigation. John is an experienced trial attorney who has also successfully represented clients before the New York Supreme Court Appellate Division, Second Judicial Department.  He has handled a number of high profile and significant matters against manufacturers, governmental entities and utilities.

John is currently representing a number of subrogating carriers as a member of the plaintiffs' steering committee in multi-million dollar litigation arising out of a 2007 steam pipe explosion in New York City.  He is also representing multiple subrogation clients related to claims arising out of a tragic gas explosion in Harlem on March 12, 2014 and an extensive water main rupture in the Greenwich Village section of New York City on January 15, 2014.  

John has written articles and lectured to clients and organizations addressing a wide range of subrogation and litigation topics.  He has also worked on a number of pro bono matters, including procurement of reparations for Holocaust survivors and the handling of uncontested divorces. 

John received his Bachelor of Arts from American University.  He earned his law degree, summa cum laude, at American University's Washington College of Law, where he was a member of the American University Law Review. During his third year in law school, John worked for the United States Attorney's Office for the District of Columbia where he wrote appellate briefs and argued before the District of Columbia Court of Appeals.




Cozen O’Connor Names Six New Shareholders

July 20, 2015

– Cozen O’Connor promoted six members to shareholder of the firm: Philip Carroll (Chicago), William Davis (New York), John B. Galligan (New York), Kendall Hayden (Dallas), Andrew Kay (D.C.) and Vincent Pozzuto (New York).


Recent NY Decision Discusses the Scope of Limitations of Liability Contained in an Electric Utility's Tariff and Other Affirmative Defenses [Subrogation & Recovery Law Blog]

April 23, 2015

On February 27, 2015, District Judge Joanna Seybert of the Eastern District of New York issued a significant and informative Decision on the issue of striking a defendant’s affirmative defenses in Allstate Ins. Co. v. Long Island Power Authority, 14-CV-0444, NYLJ 1202719533249 (E.D.N.Y.,...

7.4 Million Toyota Vehicles Recalled for Power Window Control Fire Hazard [Subrogation & Recovery Law Blog]

October 17, 2012

On October 10, 2012, Toyota Motor Corp. announced a worldwide safety recall of over 7.4 million vehicles, including approximately 2.5 million vehicles sold in the U.S., for a fire hazard associated with the power window controls. The recall is the result of an investigation launched in June 2012 by...

Events & Seminars

Past Events

NASP: NY Chapter Meeting

April 22, 2015 - Latham, NY

Cozen O'Connor's 2013 New York Litigation Seminar

February 12, 2013 - New York, NY

Industry Sectors


  • American University, Washington College of Law, J.D., summa cum laude, 1996
  • American University, B.A., 1992
  • New York
  • U.S. District Court -- Eastern District of New York
  • U.S. District Court -- Northern District of New York
  • U.S. District Court -- Southern District of New York