Block J.H. Geoffrey

Geoffrey J.H. Block


  • Yale Law School, J.D., 2021
  • Thomas Swan Barristers Union Mock Trial Champion, 2019-2020
  • Morris Tyler Moot Court Finalist, 2020-2021
  • Cornell University, B.S., 2014


  • Law Clerk, Judge Raymond Kethledge, U.S. Court of Appeals, Sixth Circuit, 2021-2022

Government Service

  • Surface Warfare Officer, U.S. Navy, 2014-2018


  • 2021, Maryland
  • 2023, District of Columbia

Geoffrey J. H. Block represents clients in complex disputes at the trial and appellate levels.  He focuses on appellate litigation and representing individuals and corporations in criminal and civil regulatory proceedings.  He maintains an active pro bono practice and has argued on behalf of his pro bono clients in multiple federal courts of appeals. 

Geoff joined Kellogg Hansen as an associate in 2022.  Prior to joining the firm, he clerked for the Honorable Raymond Kethledge on the U.S. Court of Appeals for the Sixth Circuit.  He graduated from Yale Law School, where he participated in the Supreme Court Advocacy Clinic and received the Edward D. Robbins Memorial Prize and the John Fletcher Caskey Prize.  He also participated in the Advanced Appellate Litigation Project and argued before the Third Circuit.  Prior to attending law school, Geoff was a Surface Warfare Officer in the U.S. Navy.  He earned his undergraduate degree in Industrial & Labor Relations from Cornell University.

Publications and Speaking Engagements

  • Turf Wars:  Arming Congress’s Gang (of Eight), 39 Yale L. & Pol’y Rev. 249 (2020)
  • Why the Postal Service Is Critical to National Security, Lawfare (2020)
  • Congress Must Insert Oversight of Intel Community in COVID Emergency Legislation, Just Security (2020)
  • How to Recover a Role for Congress and the Courts in Decisions to Wage War, Just Security, (2020) (with Oona Hathaway)