Jan Mukařovský (11 November 1891 – 8 February 1975) was a Czech literary, linguistic, and aesthetic theorist. Mukařovský was professor at the Charles University of Prague. He is well known for his association with early structuralism as well as with the Prague Linguistic Circle, and for his development of the ideas of Russian formalism. Among other achievements, he applied ideas from Geneva linguist and semiotician Ferdinand de Saussure to the analysis of literary and artistic expression, systematically applying and extending the concept of linguistic function to literary works and their reception in different periods. Mukařovský had a profound influence on structuralist theory of literature, comparable to that of Roman Jakobson.