Jason Zarrow


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Jason Zarrow is a litigator who focuses his practice on handling complex civil litigation matters, including class actions, mass torts, and appeals. Jason has written numerous appellate and trial court briefs on a wide range of subjects, and his experience spans multiple federal courts of appeals and district courts, as well as multiple state appellate and trial courts. Jason also maintains an active pro bono practice, focusing on criminal and immigration-related matters. He is a member of the firm’s Consumer Class Actions, Products Liability and Mass Torts, and Appellate practice groups.

Prior to joining O’Melveny, Jason was a law clerk for the Honorable Julia Smith Gibbons of the US Court of Appeals for the Sixth Circuit.

Honors & Awards

  • Recognized by The Legal 500 US for Appellate (2020)


Bar Admissions

  • California

Court Admissions

  • US Supreme Court
  • US Court of Appeals, Second, Third, Fourth, Fifth, Sixth, Seventh, Ninth, and District of Columbia Circuits
  • US District Court, Central District of California and Western District of Wisconsin


  • Harvard University, J.D.: magna cum laude
  • Vanderbilt University, B.A., Economics and History: summa cum laude

Professional Activities


  • Honorable Julia Smith Gibbons, United States Court of Appeals, Sixth Circuit


  • “Retroactivity, the Due Process Clause, and the Federal Question in Montgomery v. Louisiana,” 68 Stan. L. Rev. Online 42 (2015)
  • “The Retroactivity of Substantive Rules to Cases on Collateral Review and the AEDPA, with a Special Focus on Miller v. Alabama,” 48 Ind. L. Rev. 932 (2014)
  • Co-authored successful merits brief in Ayestas v. Davis, 138 S. Ct. 1080 (2018), which clarified the standard for receiving funding for investigative services in capital cases under 18 U.S.C. § 3599(f).
  • Co-authored successful merits brief in China Agritech Inc. v. Resh, 138 S. Ct. 1800 (2018), which held that the tolling rule of American Pipe & Construction Co. v. Utah, 414 U.S. 538 (1974), does not apply to successive class actions.
  • Argued and prevailed in the US Court of Appeals for the Fourth Circuit in Sotnikau v. Lynch, which held that involuntary manslaughter in Virginia is not categorically a crime involving moral turpitude.
  • Authored briefs in and argued appeal concerning the enforceability of the statute readmitting the State of Mississippi to representation in Congress after the civil war.
  • Co-authored successful briefs in appeal affirming dismissal of plaintiffs’ claims challenging the common practice of credit “freezes” for lack of standing.