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Matthew M. Duffy

  • ph: 202.326.7922
  • fx: 202.326.7999
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Matt Duffy is a litigation and telecommunications partner at the firm.  He has significant experience representing plaintiffs and defendants in complex and high-stakes litigation before state and federal trial courts and federal agencies.  His practice includes litigating a wide variety of contractual, securities, telecommunications, regulatory, and litigation matters.  Matt has briefed and argued dispositive motions and represented clients in all stages of fact and expert discovery.  He provides clients advice and counsel with contracts, transactions, and litigation strategies.

Prior to joining Kellogg Hansen in 2015, Mr. Duffy served as a law clerk to the Honorable Kim McLane Wardlaw on the United States Court of Appeals for the Ninth Circuit and the Honorable Charles R. Wilson on the United States Court of Appeals for the Eleventh Circuit.  Mr. Duffy graduated from Notre Dame Law School, summa cum laude, where he was first in his class and Executive Editor of the Notre Dame Law Review.


Note, Chipping Away at the Illinois Brick Wall:  Expanding Exceptions to the Indirect Purchaser Rule, 87 Notre Dame L. Rev. 1709 (2012)


University of Notre Dame Law School, J.D., summa cum laude, 2013

  • Executive Editor, Notre Dame Law Review, Volume 88

Pace University, M.S., 2009

University of Notre Dame, B.A., summa cum laude, 2007

Honors & Recognitions

Named among Best Lawyers in America®: Ones to Watch for Commercial Litigation by Best Lawyers (2024)


Law Clerk, Judge Kim M. Wardlaw, U.S. Court of Appeals, Ninth Circuit, 2014-2015

Law Clerk, Judge Charles R. Wilson, U.S. Court of Appeals, Eleventh Circuit, 2013-2014

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