Jean Vincent F矇lix Lamouroux (May 3, 1779 - March 26, 1825) was a French biologist and naturalist. He was particularly interested in marine organisms such as algae and hydrozoans. In 1805 he published a dissertation on several species of Fucus. In 1807 he was appointed to the French Academy of Sciences and in 1808 he became assistant professor of natural history at the University of Caen, rising to full professorship by 1811. He was the first to make the distinction between green, brown and red algae. In 1813, Dawson Turner adopted Lamouroux's classification system for algae, providing it with international credence. Many consider him one of the founders of modern phycology. His interest in fossils was quite broad. He and his students discovered reptilian fossils in Normandy on which he published a treatise. He died in 1825 at the age of 45.