Boris Kuschnir (born 1948) is an Austrian violinist and academic.
Born in Kiev in 1948, he studied violin with Boris Belenky at the Moscow Conservatoire and chamber music with Valentin Berlinsky of the Borodin Quartet.
In 1982 became an Austrian citizen. He is a Professor at the Konservatorium Wien University since 1984 and also a distinguished Professor at the University of Music in Graz since 1999.
Playing in various chamber music ensembles, he co-founded the Wiener Schubert Trio in 1984, the Vienna Brahms Trio in 1993 and the Kopelman Quartet in 2002.
Several of Kuschnir's students were successful at international violin competitions: Julian Rachlin (1st Prize Eurovision Grand Prix for Young Musicians, Amsterdam 1988), Nikolaj Znaider (1st Prize of the Queen Elisabeth Competition, Brussels 1997), Sergey Dogadin (1st Prize of the Joseph Joachim International Violin Competition, Hannover 2015 and Grand Prix of the Yuri Yankelevich International Violin Competition in Omsk, Russia 2013), Pavel Milyukov (3rd Prize International Tchaikovsky Competition, Moscow 2015, 1st Prize Aram Khachaturian International Competition, 2012, 2nd Prize Seoul International Music Competition, 2012), Lidia Baich (1st Prize Eurovision Grand Prix for Young Musicians, Vienna 1998), Dalibor Karvay (1st Prize Eurovision Grand Prix for Young Musicians, Berlin 2002; 1st Prize International Tibor Varga Competition, Switzerland 2003; 1st Prize David Oistrakh Competition, Moscow 2008), Alexandra Soumm (1st Prize Eurovision Grand Prix for Young Musicians, Lucerne 2004), Lorenzo Gatto (2nd Prize Queen Elizabeth Competition, Brussels 2009), Pavel Milyukov (1st Prize Aram Khachaturian International Competition, 2012, 2nd Prize Seoul International Music Competition, 2012) and Yevgeny Chepovetsky (2nd Prize David Oistrakh International Competition, Moscow 2008 and 3rd Prize Luois Spohr Competition, 2013), Yuuki Wong (2nd Prize Michael Hill Competition, New Zealand 2007), Julia Turnovsky (3rd Prize David Oistrakh International Competition, Moscow 2008) and Aleksey Igudesman (Igudesman & Joo). In addition to this he educated more than 40 laureates of national and international competitions. His pupils have been appointed Professors at Universities, playing in various chamber music ensembles and orchestras of the world – 6 of his students play at the Vienna Philharmonics.