Carl Flesch (born Károly Flesch, 9 October 1873 – 14 November 1944) was a Hungarian violinist and teacher. He was one of the most influential violin pedagogues of the 20th century, and his teaching methods are still widely used today.
Flesch was born in Mosonmagyaróvár, Hungary, in 1873. He began playing the violin at the age of five, and by the age of 10 he was already giving concerts. He studied at the Vienna Conservatory with Jakob Grün, and later at the Paris Conservatory with Martin Pierre Marsick.
In 1903, Flesch moved to Berlin, where he taught at the Hochschule für Musik. He also gave regular recitals and chamber music performances. In 1914, he moved to London, where he continued to teach and perform.
Flesch was a prolific writer, and he published several books on violin technique, including "The Art of Violin Playing" (1923) and "Violin Phrasing and Interpretation" (1925). He also wrote a number of violin etudes and studies.
Flesch was a demanding teacher, but he was also a gifted pedagogue. He had a keen eye for detail, and he was able to help his students develop their technique and musicality. He was also a great champion of the violin, and he did much to promote the instrument and its music.