Karol Wiktor Zawodziński, also known by his pseudonym Karol de Johne, (1 June 1890 – 14 December 1949) was a Polish literary critic, theoretist and historian of literature.

In the years of 1908–1913 he studied Latin philology at the university of Saint Petersburg.

In 1921 he made his own debut as a literary critic in Przegląd Warszawski, where he also published his own poetry works, later collected in Descour under pseudonym Karol de Johne.

Zawodziński was awarded Golden Laurel of the Polish Academy of Literature (Polish: Złoty Wawrzyn Polskiej Akademii Literatury).

In 1946 he became a professor of the Nicolaus Copernicus University in Toruń.