Brian Leiter is Karl N. Llewellyn Professor of Jurisprudence and Director of the Center for Law, Philosophy & Human Values at the University of Chicago, where he has taught since 2008.  He taught previously at the University of Texas at Austin (1995-2008), the University of San Diego School of Law (1993-1995) and, as a visiting professor, at University College London (Philosophy), Oxford University (Philosophy), Yale University (Law), University of Paris X-Nanterre (Law), and University of California, San Diego (Philosophy).

He teaches and writes primarily in the areas of moral, political, and legal philosophy, in both Anglophone and Continental traditions.  He is the author of Nietzsche on Morality (Routledge, 2002), Naturalizing Jurisprudence (Oxford, 2007), and Why Tolerate Religion? (Princeton, 2013), as well as many articles in such journals as Ethics, Oxford Journal of Legal Studies, Philosopher's Imprint, Social Philosophy & Policy, Journal of the History of Philosophy, Yale Law Journal, Columbia Law Review, Australasian Journal of Philosophy, Law & Philosophy, and elsewhere.

He has edited a number of volumes, including The Oxford Handbook of Continental Philosophy (2007) (with Michael Rosen), Nietzsche and Morality (Oxford, 2007) (with Neil Sinhababu), The Future for Philosophy (Oxford, 2004), Nietzsche (Oxford Reading in Philosophy, 2001) (with John Richardson), and Objectivity in Law and Morals (Cambridge, 2001).  He is the founding editor of the Routledge Philosophers book series and (with Leslie Green) of Oxford Studies in the Philosophy of Law.  He was previously co-editor for eight years of Legal Theory, and also currently serves on the editorial boards of Notre Dame Philosophical Reviews, Journal of Nietzsche Studies, Journal of Moral Philosophy, The Philosopher’s Annual, Oxford Bibliographies Online:  Philosophy, Theoria (Sweden), Anilisi e Diritto (Italy), Problema:  Anuario de Filosofia y Teoría (Mexico), Nietzsche Online (Germany), and Revista de Teoría Jurídica (Argentina).

He has given or is scheduled to give a number of named lectures at universities around the world, including the Julius Stone Address in Jurisprudence at the University of Sydney in Australia, the Taylor Lecture in the Department of Philosophy at the University of Otago in New Zealand, the Fresco Lectures in the Department of Jurisprudence at the University of Genoa in Italy, the Bernd Magnus Lecture in the Department of Philosophy at the University of California at Riverside, and the 'Or 'Emet Lecture at Osgoode Hall School of Law at York University, Toronto.