Elliott Sober (born 6 June 1948, Baltimore) is Hans Reichenbach Professor and William F. Vilas Research Professor in the Department of Philosophy at University of Wisconsin–Madison. Sober is noted for his work in philosophy of biology and general philosophy of science.
Sober earned his Ph.D in philosophy from Harvard University under the supervision of Hilary Putnam, after doing graduate work at Cambridge University under the supervision of Mary Hesse. His work has also been strongly influenced by the biologist Richard Lewontin, and he has collaborated with David Sloan Wilson,Steven Orzack and Mike Steel, also biologists.
Sober has served as the president of both the Central Division of the American Philosophical Association and the Philosophy of Science Association. He was president of the International Union of History and Philosophy of Science (Division of Logic, Methodology, and Philosophy of Science) from 2012 until 2015. He taught for one year at Stanford University and has been a regular visiting professor at the London School of Economics.
One of Sober's main fields of research has been the subject of simplicity or parsimony in connection with theory evaluation in science. Sober also has been interested in altruism, both as the concept is used in evolutionary biology and also as it is used in connection with human psychology. His book with David Sloan Wilson, Unto Others: the Evolution and Psychology of Unselfish Behavior (1998), addresses both topics.