Le Chatelier can refer to:

• Alfred Le Chatelier (1855–1929), French soldier, explorer and professor
• Henry Louis Le Chatelier, 19th-century chemist, namesake of Le Châtelier's principle
• Louis Le Chatelier, 19th-century chemist and industrialist, father of Henri Louis
• Le Châtelier, a commune in the Marne département, in France

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