Oscar Rabin (26 April 1899 – 20 June 1958) was a Latvian-born English bandleader and musician. He was the musical director of his own big band. Rabin was born in Riga to a family of Jewish origin, and came to London, England as a child. A blind music teacher and violinist taught Rabin music in exchange for him acting as a guide. At 15 he became a professional musician, he then worked in theatre orchestras and attended the Guildhall School of Music. He died in London aged 59. His granddaughter, Rachel Rabin, is also a musician.