Alberto Vojtěch Frič (in Czech pronounced as /ˈalbɛrto ˈvojcɛx ˈfrɪtʃ/, 8 September 1882 Prague - 4 December 1944 Prague) was a famous Czech botanist, ethnographer, writer and explorer. He undertook 8 voyages to America, discovered, described and catalogued many species of cactus. South American Indians called him Karaí Pukú (engl. Long Hunter); in Europe he became known as Cactus Hunter.