Jean-Marc Lévy-Leblond (born 1940) is a French physicist and essayist whose career spans the domains of theoretical physics, philosophy, and cultural criticism of science.

After completing his studies at the École Normale Supérieure, Lévy-Leblond earned his doctorate in theoretical physics from the University of Orsay in 1965. In the wake of 1968, he became a prominent voice in the movement for radical political criticism of science, particularly through his work with the journal Impasciences.

His academic path took him from research fellow at the CNRS (National Center for Scientific Research) to lecturer at the University of Nice Sophia Antipolis, eventually securing professorships at both the University of Paris 7 and the University of Nice. There, he taught across physics, philosophy, and communication departments. Today, he serves as professor emeritus at the University of Nice, having also held the position of programme director at the Collège international de philosophie from 2001 to 2007.

Lévy-Leblond’s scholarly contributions include a wealth of articles on theoretical and mathematical physics and epistemology. With F. Balibar, he co-authored an innovative quantum physics textbook. Extending beyond academic research, he has significantly shaped science communication and cultural integration by founding and directing the journal Alliage (culture, science, technique) and overseeing the “Science Ouverte” and “Pointsscience” series at Le Seuil publishing house. Throughout his career, he has pursued what he calls “(re)bringing science into culture,” striving to dissolve the boundaries between scientific knowledge and wider cultural conversations.