The Cairo Geniza, alternatively spelled the Cairo Genizah, is a collection of some 400,000 Jewish manuscript fragments and Fatimid administrative documents that were kept in the genizah or storeroom of the Ben Ezra Synagogue in Fustat or Old Cairo, Egypt. These manuscripts span the entire period of Middle-Eastern, North African, and Andalusian Jewish history between the 6th and 19th centuries CE, and comprise the largest and most diverse collection of medieval manuscripts in the world.
The Genizah texts are written in various languages, especially Hebrew, Arabic, and Aramaic, mainly on vellum and paper, but also on papyrus and cloth. In addition to containing Jewish religious texts such as Biblical, Talmudic, and later Rabbinic works (some in the original hands of the authors), the Genizah gives a detailed picture of the economic and cultural life of the Mediterranean region, especially during the 10th to 13th centuries.