Isa Kremer (Belz, Bessarabia, 1887-Córdoba, Argentina, 1956) traveled the world performing art, folk, and classical music. She studied and sang opera in Italy but appeared as an art singer in Odessa, where she was the wife of Israel Heifetz, the editor of The Odessa News. Her great legacy is her Isa Kremer Sings Jewish Life in Song, a book and album of Jewish songs.