This Scribes of the Cairo Geniza dataset comprise images of Geniza fragments from Judaica manuscript collections at Penn Libraries, the Genizah Research Unit at Cambridge University Libraries, and the Library of the Jewish Theological Seminary. The dataset comprises records of 40,152 subjects (fragment[s] as defined by Zooniverse) sorted between August 2017 and February 2019. Images of fragments were uploaded to the Zooniverse.org citizen science website where they were classified by scholars and volunteer humanists. Classification involved identifying script type and formality, and landmarking pre-defined features on the fragments.