Dajos Béla, born Leon Golzmann on December 19, 1897, in Kyiv, Kyiv Governorate, Russian Empire (now Ukraine), was a notable Russian jazz violinist and bandleader. He was born to a Russian father and a Hungarian mother. After serving as a soldier in World War I, Béla pursued music studies in Moscow and later in Berlin, where he began performing in local venues. It was during this time that he adopted the stage name Dajos Béla, as Hungarian and Romanian music were particularly popular in Germany.

Béla's career flourished in Berlin, where he formed his own salon orchestra and gained significant popularity. His orchestra was among the most renowned in Germany and also achieved international acclaim. He recorded music under various names, including The Odeon Five, Mac’s Jazz Orchestra, and The Clive Williams Jazzband. His contributions to the music department of films such as "Gitta entdeckt ihr Herz" (1932), "Jeder fragt nach Erika" (1931), and "Der ungetreue Eckehart" (1931) are well remembered.

In 1933, with the rise of the Nazi regime in Germany, Béla, who was Jewish, began touring internationally. By 1935, he had relocated to Buenos Aires, Argentina, where he remained for the rest of his life. He passed away on December 5, 1978, in La Falda, Córdoba, Argentina.

Throughout his career, Béla collaborated with numerous musicians, including pianist and composer Franz Grothe, jazz musicians Rudi Anhang and Kurt Hohenberger, and singers such as Rex Allen and Paul O'Montis. His discography includes a variety of recordings, and he notably made around 70 records with the tenor Richard Tauber. Dajos Béla's legacy as a pioneering jazz violinist and bandleader continues to be celebrated.