Prof. Dr Hab. Karol Daniel Kadłubiec (born 22 July 1937 in Karpętna) is a Polish ethnographer, folklorist and historian from the Zaolzie region of the Czech Republic. He specializes also in ethnology, history of language and dialectology, and in a studies of culture, folklore and language of Cieszyn Silesia and Zaolzie. Kadłubiec graduated from Polish elementary school in Bystrzyca, Polish gymnasium in Czeski Cieszyn in 1955 and then from Slavic philology at the Charles' University in Prague in 1960. He earned a professor degree in 1994.