Sandor Harmati (9 July 1892 – 4 April 1936) was a Hungarian-American violinist, conductor and composer, best known for his song "Bluebird of Happiness" written in 1934 for Jan Peerce.
Sandor Harmati (Harmati Sándor in Hungarian orthography) was born into a Jewish family in Budapest on 9 July 1892.
He studied at the Budapest Music Academy in 1909, becoming a professor at the age of only 17. From 1910 to 1912 he was Concertmaster of the Hungarian State Orchestra. He emigrated to the United States in 1914. From 1917 to 1921 he played with the Letz String Quartet, becoming leader in 1922; and the Elki Piano Trio (Ernö Rapée, piano; Paul Gruppe, cello; Sandor Harmati, violin). From 1922 to 1925 he played first violin with the Lenox String Quartet, which he co-founded.
In 1921 Sandor Harmati was a founding member of the American Music Guild, created by a group of young American composers "to learn each other's music and to present worthy works by other American composers to the New York public". The other charter members were Frederick Jacobi, Marion Bauer, Emerson Whithorne, Louis Gruenberg, Charles Haubiel, A. Walter Kramer, Harold Morris, Albert Stoessel and Deems Taylor.
On 11 November 1923, at the Klaw Theater in New York, Harold Bauer and the Lenox Quartet gave the first performance of Ernest Bloch's Piano Quintet No. 1, which was dedicated to the performers (Harold Bauer, piano; Sandor Harmati and Wolfe Wolfinsohn, violins; Nicolas Moldavan, viola; and Emmeran Stoeber, cello).
On 19 September 1924, at the 7th Berkshire Festival of Chamber Music, the Lenox Quartet took part in the first performance of La Belle Dame sans Merci, Wallingford Riegger's setting of John Keats' poem, for two sopranos, contralto, tenor, violin, viola, cello, double bass, oboe (English horn), clarinet and French horn.