Franz Felix Adalbert Kuhn (November 19, 1812 - May 5, 1881), German philologist and folklorist, was born at Königsberg in Neumark.

From 1841 he was connected with the Köllnisches Gymnasium at Berlin, of which he was appointed director in 1870. Kuhn was the founder of a new school of comparative mythology, based upon comparative philology. Inspired by Grimm's Deutsche Mythologie, he first devoted himself to German stories and legends, and published Markische Sagen und Märchen (1842), Norddeutsche Sagen, Märchen und Gebrauche (1848), and Sagen, Gebrauche und Märchen aus Westfalen (1859).

But it is on his researches into the language and history of the Indo-Germanic peoples as a whole that his reputation is founded. His chief works in this connection are Zur altesten Geschichte der Indogermanischen Volker (1845), in which he endeavoured to give an account of the earliest civilization of the Indo-Germanic peoples before their separation into different families, by comparing and analysing the original meaning of the words and stems common to the different languages; Die Herabkunft des Feuers und des Gottertranks (1859; new ed. by E Kuhn, under title of Mythologische Studien, 1886); and Uber Entwicklungsstufen der Mythenbildung (1873), in which he maintained that the origin of myths was to be looked for in the domain of language, and that their most essential factors were polyonymy and homonymy. The Zeitschrift für vergleichende Sprachforschung auf dem Gebiete der Indogermanischen Sprachen, with which he was intimately connected, is the standard periodical on the subject.

See obituary notice by CFH Bruchmann in Bursian's Biographisches Jahrbuch (1881) and J Schmidt in the above Zeitschrift, xxvi. n.s. 6.