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Václav Blažek (born 23 April 1959 in Sokolov, Czechoslovakia) is a Czech historical linguist. He is a professor at Masaryk University (Brno, Czech Republic) and also teaches at the University of West Bohemia (Pilsen, Czech Republic). His major interests include Indo-European languages, Uralic languages, Altaic languages, Afroasiatic (Hamito-Semitic) languages, Nostratic languages, Dené–Caucasian languages, and mathematical linguistics (lexicostatistics and glottochronology).