John Fabian Witt

John Fabian Witt
OccupationProfessor
AwardsBancroft Prize
Academic background
Alma materYale University (BA, JD, PhD)
Academic work
DisciplineLaw
InstitutionsYale University
Notable worksLincoln's Code
American Contagions

John Fabian Witt is Allen H. Duffy Class of 1960 Professor of Law at Yale Law School. He is the author of Lincoln’s Code: The Laws of War in American History, which won the 2013 Bancroft Prize in history of the Americas and, in 2020, American Contagions: Epidemics and the Law from Smallpox to COVID-19. In October 2025 Witt published The Radical Fund: How a Band of Visionaries and a Million Dollars Upended America, about the Garland fund, established in 1921 by Charles Garland with an inheritance from his father.