Jennifer Mascott

Jenn Mascott
Judge of the United States Court of Appeals for the Third Circuit
Assumed office
October 10, 2025
Appointed byDonald Trump
Preceded byKent A. Jordan
Personal details
BornJennifer Lee Miller
1976 (age 49–50)
EducationUniversity of Maryland, College Park (BS)
George Washington University (JD)

Jennifer Lee "Jenn" Mascott (née Miller; born 1976) is an American lawyer and jurist serving as a United States circuit judge of the United States Court of Appeals for the Third Circuit. Prior to her judicial appointment, Mascott was a law professor whose research focused on separation of powers and litigation. She taught at the Columbus School of Law of Catholic University of America (2025), the Antonin Scalia Law School of George Mason University (2017–2024), and the George Washington University Law School (2011–2017).