Bertha Kalich was a Ukrainian-Jewish-American actress. Though she was well-established as an entertainer in Eastern Europe, she is best remembered as one of the several "larger-than-life" figures that dominated New York stages during the "Golden Age" of American Yiddish Theatre during the late nineteenth and early twentieth century. Historians estimate that, during her career, Kalich performed more than 125 different roles in seven different languages.

Yiddish theatre consists of plays written and performed primarily by Jews in Yiddish, the language of the Central European Ashkenazi Jewish community. The range of Yiddish theatre is broad: operetta, musical comedy, and satiric or nostalgic revues; melodrama; naturalist drama; expressionist and modernist plays. At its height, its geographical scope was comparably broad: from the late 19th century until just before World War II, professional Yiddish theatre could be found throughout the heavily Jewish areas of Eastern and East Central Europe, but also in Berlin, London, Paris, Buenos Aires and New York City.