Frédéric Gustave Eichhoff (17 August 1799, in Le Havre – 10 May 1875, in Paris) was a French linguist and philologist. He studied at Paris, receiving his doctorate in 1826 with a thesis on Hesiod. In 1837–38 he worked as a substitute for Claude Fauriel at the Sorbonne, and in 1842 was appointed professor of foreign languages at the Faculty of Letters in Lyon. From 1855 onward, he served as inspector-general for public instruction. He was a member of the Académie de Stanislas and a correspondent member of the Académie des Inscriptions et Belles-Lettres (1847–75).