Bruno Brun (1910–1978) was a Yugoslav clarinetist and professor at the Belgrade Music Academy.
He was one of the founders of the Association of Musical Artists of Serbia and its vice-president, and the secretary of the Belgrade Philharmonic Orchestra.
In 1973 he was a jury member at the ARD International Music Competition in Munich, along with Heinrich Sutermeister (Switzerland), Günter Bialas (Federal Republic of Germany), Ulysse Delécluse (France), David Glazer (United States), Robert Gugolz (Switzerland), Rudolf Jettel (Austria), Jost Michaels (Federal Republic of Germany), Gerd Starke (Federal Republic of Germany).
In 1977 he was a jury member at the Munich Competition, along with Hans-Peter Schmitz (Germany), Eduard Brunner (Switzerland), Hans Deinzer (Federal Republic of Germany), Guy Deplus (France), Dieter Klōcker (Federal Republic of Germany), Victor Petrov (U.S.S.R.) and Heinrich Sutermeister (Switzerland).
His most famous students include Milenko Stefanović, Ernest Ačkun, Ante Grgin and Nikola Srdić (all of them were or are principal clarinetists and university professors).