John S. Williams

John S. Williams is a partner at Williams & Connolly LLP, whose practice focuses on complex civil litigation, securities litigation, international disputes and arbitration, and professional liability defense. He represents issuers, private equity firms, underwriters, professional advisers, and individuals. His experience includes class actions, derivative cases, fraud claims, regulatory challenges, government investigations, and civil lawsuits and disputes. He has represented clients at every level of federal and state courts, including the US Supreme Court.

John earned his J.D., cum laude, from Harvard Law School. He earned his M.A. from Yale University and his A.B., magna cum laude, from Princeton University. His academic background established a strong foundation for complex litigation, securities disputes, international matters, and appellate advocacy.

John handles securities cases involving alleged fraud, corporate reorganizations, accounting issues, regulatory investigations, and shareholder claims. His international practice includes civil and criminal matters, government investigations, and international arbitration. He has extensive experience representing companies and private equity firms in the energy and healthcare sectors. His professional liability work includes defending law firms and individual attorneys against civil claims, government investigations, criminal prosecutions, sanctions, and disciplinary proceedings.

John S. Williams joined Williams & Connolly LLP after clerking for Judge Danny J. Boggs of the U.S. Court of Appeals for the Sixth Circuit. His representative experience includes commercial disputes, criminal matters, government investigations, securities cases, and professional liability litigation. He has argued before the U.S. Supreme Court and serves on the firm’s Discovery Attorney Committee. His practice combines trial, appellate, arbitration, and investigative experience in sophisticated disputes.

Law Office Affiliations

• Partner, Williams & Connolly LLP
• Member, Bar Association of the District of Columbia
• Member, New York State Bar Association

Licensed State

• District of Columbia
• New York

Education

• Harvard Law School
  Juris Doctor (JD)
• Yale University
  Master of Arts (MA)