John Corcoran (/ˈkɔːrkərən/ KOR-kər-ən; March 20, 1937 – January 8, 2021) was an American logician, philosopher, mathematician, and historian of logic.

His work[2] on Aristotle's logic of the Prior Analytics is regarded as being highly faithful both to the Greek text and to the historical context.

At Yeshiva University in New York City Corcoran studied with Raymond Smullyan and Martin Davis.

Corcoran's first tenure-track position was at the University of Pennsylvania, where his dissertation supervisor was a Professor of Computer and Information Science.

He has discussed Aristotle, the Stoics, William of Ockham, Giovanni Girolamo Saccheri, George Boole, Richard Dedekind, Gottlob Frege, Charles Sanders Peirce, Clarence Irving Lewis, the American Postulate Theorists, Alfred Tarski, Willard Van Orman Quine, and Warren Goldfarb.

It has formed the basis for subsequent investigations by Edgar Andrade, George Boger, Manuel Correia, Paolo Crivelli, Newton da Costa, Catarina Dutilh, Paolo Fait, Nicolas Fillion, James Gasser, Klaus Glashoff, John Martin, Mary Mulhern, Michael Scanlan, Robin Smith, Neil Tennant, and others.

In philosophy of mathematics Corcoran has been guided by a nuanced and inclusionary Platonism which strives to do justice to all aspects of mathematical and logical experience including those aspects emphasized by competing philosophical perspectives such as logicism, constructivism, deductivism, and formalism.

He has been guided by the Aristotelian principle that the nature of modern thought is sometimes best understood in light of its historical development, a view that he attributes to Arthur Lovejoy's History of Ideas Program at Johns Hopkins University and in which he has been encouraged by the American philosopher and historian Peter Hare.