Morris Jastrow Jr. (1861–1921) was a Polish-born American scholar who distinguished himself as an orientalist and librarian. He was closely associated with the University of Pennsylvania, where he dedicated much of his professional life to academic research and library administration.\n\nActive during the late nineteenth and early twentieth centuries, Jastrow's career bridged the fields of ancient Near Eastern studies and library science. His contributions at the University of Pennsylvania left a lasting mark on the institution's academic resources.