Jefferson Allen McMahan (born 30 August 1954) is an American philosopher. He is currently White’s Professor of Moral Philosophy at the University of Oxford.
McMahan has published extensively on topics of interest to effective altruism, such as population ethics (McMahan 1981; McMahan 2013); existential risk from nuclear war (McMahan 1986); animal ethics—including the ethics of eating animals (McMahan 2008), the moral status of animals (McMahan 2005), and wild animal welfare (McMahan 2010a; McMahan 2010b; McMahan 2015; cf. Faria 2015)—; and the demandingness of morality (McMahan 2018). He has also published a response to various criticisms of effective altruism (McMahan 2016).
Faria, Catia (2015) Making a difference on behalf of animals living in the wild: interview with Jeff McMahan, Relations, vol. 3, pp. 81–84.
McMahan, Jeff (1981a) British Nuclear Weapons: For and Against, London: Junction Books.
McMahan, Jeff (1981b) Problems of population theory, Ethics, vol. 92, pp. 96–127.
McMahan, Jeff (1986) Nuclear deterrence and future generations, in Avner Cohen & Steven Lee (eds.) Nuclear Weapons and the Future of Humanity: The Fundamental Questions, Totowa, New Jersey: Rowman & Allanheld, pp. 319–339.
McMahan, Jeff (2003) Animals in R. G. Frey & Christopher Wellman (eds.) A Companion to Applied Ethics, Oxford: Blackwell, pp. 525–536.
Mcmahan, Jeff (2005) Our fellow creatures, Journal of Ethics, vol. 9, pp. 353–380.
McMahan, Jeff (2008) Eating animals the nice way, Dædalus, vol. 137, pp. 66–76.
McMahan, Jeff (2010a) The meat eaters, The New York Times, September 19.
McMahan, Jeff (2010b) Predators: a response, The New York Times, September 28.
McMahan, Jeff (2013) Causing people to exist and saving people’s lives, Journal of Ethics, vol. 17, pp. 5–35.
McMahan, Jeff (2015) The moral problem of predation, in Andrew Chignell, Terence Cuneo & Matthew Halteman (eds.) Philosophy Comes to Dinner: Arguments about the Ethics of Eating, New York: Routledge, pp. 268–294.
McMahan, Jeff (2016) Philosophical critiques of effective altruism, The Philosophers’ Magazine, vol. 73, pp. 92–99.
McMahan, Jeff (2018) Doing good and doing the best, in Paul Woodruff (ed.) The Ethics of Giving: Philosophers’ Perspectives on Philanthropy, New York: Oxford University Press, pp. 78–102.
Petersen, Thomas & Jesper Ryberg (2007) Jeff McMahan, in Thomas Petersen & Jesper Ryberg (eds.) Normative Ethics: 5 Questions, New York: Automatic Press, pp. 67–75.
University of Oxford (2020) Professor Jeff McMahan, University of Oxford.