Doug Smith is counsel in Mayer Brown's Los Angeles office and a member of the Litigation & Dispute Resolution, Cybersecurity & Data Privacy and Supreme Court & Appellate practices. Doug handles complex trial and appellate court litigation, focusing on antitrust, intellectual property, tax- and insurance-related class actions, and data privacy and cybersecurity.

Before joining Mayer Brown, Doug was a litigator with the New York and Los Angeles offices of Skadden, Arps, Slate, Meagher & Flom LLP. He also clerked for The Honorable Beverley B. Martin of the United States Court of Appeals for the Eleventh Circuit, Colorado Supreme Court Justice Richard L. Gabriel while he was on the Colorado Court of Appeals, and Colorado Supreme Court Justice Monica M. Márquez. He also has extensive federal government service, including with the White House’s Council of Economic Advisers, the Department of Justice, FDIC, Freddie Mac, the US House of Representatives, and the US Senate.

Doug has a strong commitment to pro bono and serves as the Pro Bono Chair for Mayer Brown’s Los Angeles office. He has received numerous awards for his pro bono service, including the California Young Lawyers Association’s Jack Berman Award of Achievement, and has secured two favorable published Ninth Circuit opinions for his pro bono clients. He also is a lecturer in law at USC Gould School of Law, teaching a three-credit class, Fundamentals of Intellectual Property Law, each Spring semester. Doug holds CIPP/US and CIPM certifications from the International Association of Privacy Professionals. He also serves as the Board Chair of The Samburu Project, a water charity operating in Kenya; the Managing Editor of the Journal of Law & Cyber Warfare, and a board member of Neighborhood Legal Services of Los Angeles.


  • An international insurer in COVID-19 business interruption class actions around the country
  • An indirect financer in obtaining summary judgment on antitrust claims seeking approximately $1 billion in damages arising from the allegedly fraudulent acquisition and enforcement of a patent in the indirect auto lending market
  • A large international bank in an antitrust class action involving alleged price fixing and other anticompetitive restraints by credit card networks
  • A large apparel company and its private equity owners in a trademark and antitrust action
  • A large international bank in class actions and in appeal regarding alleged underreporting of home mortgage interest payments on IRS Form 1098, and appeals regarding the taxation of the bank’s income and fees from its credit card operations
  • A large apparel company in shareholder derivative and proxy solicitation fraud lawsuits and in various corporate takeover matters
  • A well-known beverage company in a class action appeal regarding misleading advertising
  • A wearables developer in a trade secret misappropriation and breach of contract lawsuit
  • A CEO in high-profile civil and criminal insider trading cases and interlocutory, criminal appeals
  • A large automobile manufacturer in litigations regarding allegations of unintended acceleration
  • A large energy company in class actions and appeals regarding alleged misclassification of shareholder distributions on IRS Form 1099-DIV


William & Mary Law School, JD
Managing Editor, William & Mary Law Review, Moot Court

Catholic University of America, MA, International Political Economics, Teaching Assistant in Statistics

Catholic University of America, BA, magna cum laude, International Economics and Finance, and Politics
Phi Beta Kappa, NCAA baseball


  • California
  • Colorado
  • New York


  • Lecturer in Law, Fundamentals of Intellectual Property Law, University of Southern California Gould School of Law (2020-Present)
  • Lecturer in Law, Cybersecurity & Cyber Crimes, University of Southern California Gould School of Law (Summer 2021)
  • Managing Editor, Journal of Law & Cyber Warfare
  • Board Chair, The Samburu Project
  • Board Member, Neighborhood Legal Services of Los Angeles County
  • Board Member, Reframe Labs