Stefan Frenkel (21 November 1902 – 1 March 1979),[1] born in Warsaw and in later years resident in America, was a violinist, academic and composer.
At the Hochschule für Musik in Berlin he studied violin with Adolf Busch and Carl Flesch, and composition with Friedrich Koch.
He left Dresden in 1926, and appeared as soloist at venues in Germany, playing works by contemporary composers, including the premiere in 1929 of his own concerto for violin and string orchestra.
He left Germany in 1935 and moved to Switzerland, where he was concertmaster of the Orchestre de la Suisse Romande.
In the following year he moved to the United States, and in New York was the first concertmaster of the Metropolitan Opera, holding the post until 1940.