Stephen Weissman

Stephen Weissman is a Washington, D.C.–based partner and a cornerstone of Gibson, Dunn & Crutcher LLP Antitrust and Competition Practice Group. A former Deputy Director of the Federal Trade Commission’s Bureau of Competition, he offers unparalleled insight into merger reviews, non-merger investigations, and high-stakes antitrust litigation. Recognized by Chambers USA and Who’s Who Legal as a top-tier advocate, he brings exceptional experience and strategic precision to every client engagement.

Mr. Weissman earned his J.D. from the University of Pennsylvania and his B.A. in Economics from Tufts University. His academic foundation in law and economics provides a unique analytical framework for understanding competitive dynamics, market regulation, and merger control. Admitted in the District of Columbia and Maryland, he is also admitted before multiple U.S. Courts of Appeal and District Courts, enabling him to represent clients nationwide.

Before joining Gibson, Dunn & Crutcher LLP, Mr. Weissman co-chaired the antitrust practice at a global firm and served as lead counsel in high-profile cases involving major corporations and regulatory agencies. As FTC Deputy Director, he supervised investigations across industries such as pharmaceuticals, digital markets, energy, and consumer goods, and led the agency’s successful challenge to Sysco Corporation’s $3.5 billion merger with U.S. Foods. His experience informs his approach to complex antitrust defense and merger clearance work.

Widely regarded as one of North America’s foremost antitrust lawyers, Stephen Weissman has represented Fortune 500 clients including Broadcom, Merck, and PepsiCo. He has been honored as a “Top 10 Antitrust Lawyer in North America” by MergerLinks and featured in Lawdragon’s “500 Leading Litigators in America.” His deep regulatory knowledge and trial experience make him a trusted advisor in antitrust law.

Law Office Affiliations

• Partner, Gibson, Dunn & Crutcher LLP
• Member, District of Columbia Bar Association

Licensed State

• District of Columbia Bar

Education

• University of Pennsylvania
  Juris Doctor (JD)
• Tufts University
  Bachelor of Arts (BA)

Awards & Badges