Lauren Kaplan


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Lauren Kaplan focuses her practice on the area of State Attorneys General investigations and enforcement and complex civil litigation.  She has represented companies and individuals in state and federal courts—at the trial level and on appeal—and in government and internal investigations.  Lauren is also an active member of O’Melveny’s pro bono practice.

Lauren has served on teams at all stages of litigation.  She has developed case strategy, worked closely and productively with local counsel, and managed briefing and affirmative and defensive discovery.



Bar Admissions

  • California

Court Admissions

  • US District Court, Central District of California
  • US Court of Appeals, Ninth Circuit


  • University of California at Irvine, School of Law, J.D.: summa cum laude
  • George Mason University, Master in Education (M.E.D.)
  • University of California at Berkeley, B.A., History: with Honors; Phi Beta Kappa

Professional Activities


  • Justice Raymond J. Ikola, California Court of Appeal, Fourth District


  • Honorable George H. King, US District Court, Central District of California
  • Served as trial counsel for a major medical device company in litigation brought by the California Attorney General regarding alleged violations of consumer protection laws.  Over the course of a three-month trial, Lauren had an active role in formulating trial strategy, preparing key expert and fact witnesses, and arguing evidentiary issues.
  • Representing a major medical device company in consumer protection actions brought by the Washington, Kentucky, Mississippi, and Oregon Attorneys General.
  • Member of the team that resolved a multistate investigation involving allegations that a major medical device company deceptively marketed transvaginal surgical mesh devices.
  • Member of the team representing a major international oil and gas company in multiple pending suits filed by states, cities, and counties across the country—including eight filed in California—seeking to hold oil and gas companies liable for the effects of climate change. 
  • Representing a major international oil and gas company in connection with investigations by various local, state, and federal agencies resulting from an accidental release at refinery, and defeated class certification and enforcement of federal subpoenas in related litigation.
  • Member of the team that successfully resolved a criminal antitrust investigation and prosecution of Bumble Bee Foods.