Ethan Dettmer

Gibson, Dunn & Crutcher LLP

$ $$$

Mission Street 555
San Francisco 94105 CA US

Ethan Dettmer is a partner in Gibson, Dunn & Crutcher’s San Francisco office where he is a member of the firm’s Litigation Practice, and serves on the steering committee of the firm’s Securities Litigation Practice Group.

Mr. Dettmer is a trial lawyer who has represented clients in a wide variety of business-related disputes, including securities, insurance, corporate governance, professional malpractice, and transnational litigation.

He has represented clients in high-profile constitutional litigation involving equal protection and due process claims, and cases involving First Amendment and preemption questions. He also represents clients in connection with governmental investigations and internal corporate investigations.

Mr. Dettmer is the chair of Gibson Dunn’s firm-wide Associates Committee, and serves as the hiring partner for the firm’s San Francisco office.  He is also a member of the firm’s Associate Compensation, Hiring, and Professional Development Committees.  He is co-author of the firm’s treatise entitled “Securities Litigation:  A Practitioner’s Guide” (published by PLI).

Mr. Dettmer is a member of the State Bars of California and Michigan, and is admitted to practice in various federal courts.  He was a law clerk to the late Justice James H. Brickley of the Michigan Supreme Court before joining Gibson Dunn, and is an honors graduate of Harvard College and the University of Michigan Law School.  Mr. Dettmer was an admissions and financial aid officer at Harvard and Radcliffe Colleges before attending law school.


  • University of Michigan – 1997 Juris Doctor
  • Harvard University – 1993 Bachelor of Arts


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Mission Street 555
San Francisco 94105 CA US
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