Ottokar Eugen Novacek (born May 15, 1873, in Vienna, Austria; died December 29, 1951, in Los Angeles, California) was a prominent violinist and composer associated with the classical music genre. He was a student of notable figures such as Joseph Hellmesberger Jr. and later became a distinguished member of the Viennese music scene. Novacek is best known for his compositions for violin and piano, particularly his "Souvenir de Bohême," which showcases his virtuosic style and lyrical melodies. His works often reflect the influence of his Bohemian heritage, combining folk elements with classical techniques. In addition to compositions, he was an accomplished performer, serving as a soloist and chamber musician. His impact on music lies not only in his compositions but also in his pedagogical contributions as a teacher. Novacek taught at various institutions, including the University of Southern California, influencing a generation of musicians. His works, while not as widely performed today, remain a testament to the rich tradition of early 20th-century classical music and continue to be appreciated for their technical demands and expressive qualities.