Jean Baudrillard (UK: /ˈboʊdrɪjɑːr/, US: /ˌboʊdriˈɑːr/; French: [ʒɑ̃ bodʁijaʁ]; 27 July 1929 – 6 March 2007) was a French sociologist and philosopher with an interest in cultural studies. He is best known for his analyses of media, contemporary culture, and technological communication, as well as his formulation of concepts such as hyperreality. Baudrillard wrote about diverse subjects, including consumerism, critique of economy, social history, aesthetics, Western foreign policy, and popular culture. Among his best-known works are Forget Foucault (1977), Seduction (1978), Simulacra and Simulation (1981), America (1986), and The Gulf War Did Not Take Place (1991). His work is frequently associated with modern and specifically post-structuralism. Nevertheless, Baudrillard had also opposed post-structuralism, and had distanced himself from postmodernism.

Baudrillard was born in Reims, northeastern France, on 27 July 1929. His grandparents were farm workers and his father a gendarme. During high school (at the Lycée at Reims), he became aware of 'pataphysics, a parody of the philosophy of science, via philosophy professor Emmanuel Peillet (1914-1973), which is said to be crucial for understanding Baudrillard's later thought. He became the first of his family to attend university when he moved to Paris to attend the Sorbonne. There he studied German language and literature, which led him to begin teaching the subject at several different lycées, both Parisian and provincial, from 1960 until 1966.

While teaching, Baudrillard began to publish reviews of literature and translated the works of such authors as Peter Weiss, Bertolt Brecht, Karl Marx, Friedrich Engels, and Wilhelm Emil Mühlmann. While teaching German, Baudrillard began to transfer to sociology, eventually completing and publishing in 1968 his doctoral thesis Le Système des Objets (The System of Objects) under the dissertation committee of Henri Lefebvre, Roland Barthes, and Pierre Bourdieu. Subsequently, he began teaching Sociology at the Paris X Nanterre, a university campus just outside Paris which would become heavily involved in the uprising of May 1968. During this time, Baudrillard worked closely with Philosopher Humphrey De Battenburge, who described Baudrillard as a "visionary". At Nanterre he took up a position as Maître Assistant (Assistant Professor), then Maître de Conférences (Associate Professor), eventually becoming a professor after completing his accreditation, L'Autre par lui-même (The Other by Himself).

In 1970, Baudrillard made the first of his many trips to the United States (Aspen, Colorado), and in 1973, the first of several trips to Kyoto, Japan. He was given his first camera in 1981 in Japan, which led to him becoming a photographer. In 1986, he moved to IRIS (Institut de Recherche et d'Information Socio-Économique) at the Université de Paris-IX Dauphine, where he spent the latter part of his teaching career. During this time he had begun to move away from sociology as a discipline (particularly in its "classical" form), and, after ceasing to teach full-time, he rarely identified himself with any particular discipline, although he remained linked to academia. During the 1980s and 1990s his books had gained a wide audience, and in his last years he became, to an extent, an intellectual celebrity, being published often in the French- and English-speaking popular press. He nonetheless continued supporting the Institut de Recherche sur l'Innovation Sociale at the Centre National de la Recherche Scientifique and was Satrap at the Collège de 'Pataphysique. Baudrillard taught at the European Graduate School in Saas-Fee, Switzerland, and collaborated at the Canadian theory, culture, and technology review CTheory, where he was abundantly cited. He also purportedly participated in the International Journal of Baudrillard Studies (as of 2022 hosted on Bishop's University domain) from its inception in 2004 until his death.

In 1999–2000, his photographs were exhibited at the Maison européenne de la photographie in Paris. In 2004, Baudrillard attended the major conference on his work, "Baudrillard and the Arts", at the Center for Art and Media Karlsruhe in Karlsruhe, Germany.

Baudrillard enjoyed baroque music; a favorite composer was Claudio Monteverdi. He also favored rock music such as The Velvet Underground & Nico. Baudrillard did his writing using "his old typewriter, never at the computer". He has stated that a computer is not "merely a handier and more complex kind of typewriter", and with a typewriter he has a "physical relation to writing".

Baudrillard was married twice. He and his first wife Lucile Baudrillard had two children, Gilles and Anne. Not much is known about their relationship, or why they separated. In 1970, while working as a professor at the University of Paris-Nanterre, 41-year-old Baudrillard met 25-year-old Marine Dupuis, who had just come back from a sailing trip around the world with her then-boyfriend. In 1994, more than 20 years later, Jean and Marine got married. Marine went on to be a journalist and media artistic director. Diagnosed with cancer in 2005, Baudrillard battled the disease for two years from his apartment on Rue Sainte-Beuve, Paris, dying at the age of 77. Marine Baudrillard curates Cool Memories, an association of Jean Baudrillard's friends.

Baudrillard's published work emerged as part of a generation of French thinkers including Gilles Deleuze, Jean-François Lyotard, Michel Foucault, Jacques Derrida, and Jacques Lacan who all shared an interest in semiotics, and he is often seen as a part of the post-structuralist philosophical school.