O'Brien, Kevin J.

575 5th Avenue17th FloorNew York, NY 10017

Updated: 09/05/2017


Kevin J. O’Brien is an experienced trial lawyer and former Assistant U. S. Attorney, who specializes in commercial and securities litigation on behalf of plaintiffs and defendants, arbitrations, regulatory enforcement cases and white-collar criminal defense.

Kevin has tried over 25 court cases and numerous arbitrations to verdict. His victories include Central Illinois Public Service v. Allianz, et al., in which he won a $100,000,000 jury verdict for a public utility against...


Office Info

Current Employment Position(s)

  • Partner

Practice Areas

  • Commercial Litigation
  • Securities Litigation
  • FINRA customer-member arbitrations

Representative Cases

  • Central Illinois Public Service v. Allianz, et al.
  • State of New York, et al. v. Manhattan Eye, Ear & Throat
  • United States v. Michael Rigas


Bar Admissions

  • New York

Past Positions

  • U.S. Attorney's Office for the Eastern District of New York, Assistant U.S. Attorney
  • New York State Commission on Government Integrity, Chief Counsel
  • Office of Independent Counsel, Washington, D.C., Associate Independent Counsel
  • Dechert LLP, Litigation Partner
  • Harris, O’Brien, St. Laurent & Chaudhry, LLP, Name Partner


  • Harvard Law School, Cambridge, Massachusetts, 1979
  • Balliol College, University of Oxford, England, 1976
  • Harvard College, 1974
    Honors: summa cum laude


Published Works

  • National Law Journal
  • New York Law Journal
  • Law360
  • Legal Times
  • The Art of the Campaign: How Lincoln Won the Lincoln-Douglas Debates, 2013

Office Information


575 5th Avenue17th FloorNew York, NY 10017


  • 212-256-1047


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