Matthew Lee Wiener

Vice Chair/Executive Director, Staff

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Matthew Lee Wiener is the Acting Chairman, Vice Chairman, and Executive Director of the Administrative Conference of the United States (ACUS). He served as Acting Chairman and Vice Chairman from January 2017 (by appointment of President Obama) to January 2021. President Biden reappointed him to that post in February 2021.  In 2016, President Obama nominated him to be ACUS’s Chairman.

Before affiliating with ACUS, Mr. Wiener was general counsel to U.S. Senator Arlen Specter, counsel to the U.S. House of Representatives Committee on the Judiciary, a partner at Dechert LLP, and special counsel to Cuneo Gilbert & LaDuca.  

Mr. Wiener is an elected member of the American Law Institute, a fellow of the American Bar Foundation, a lecturer in law at the University of Pennsylvania Law School, and the co-chair of the Adjudication Committee of the American Bar Association’s Section of Administrative Law and Regulatory Practice.   

He holds a J.D. from Stanford Law School, where he was articles editor of the Stanford Law Review, and an A.B. from William and Mary. 



  • Vice Chairman, Administrative Conference of the United States
  • Executive Director, Administrative Conference of the United States

ACUS Documents