b. 1946
Torbjörn Tännsjö (born 1946) is a Swedish philosopher and Professor Emeritus of Practical Philosophy at Stockholm University. He is known for his work in normative ethics, political philosophy, and bioethics, defending a rigorous hedonistic utilitarianism across a wide range of applied domains. His scholarship spans population ethics, global democracy, and the philosophy of medicine.
Developed and defended hedonistic utilitarianism as a systematic normative framework
Advanced arguments for global democracy and cosmopolitan political institutions
Contributed to population ethics, including engagement with the repugnant conclusion debate
Applied utilitarian reasoning to bioethics, including end-of-life decisions and medical triage
Authored numerous monographs bridging academic ethics and public policy