Sallyann Amdur Sack is an American genealogist and psychologist, and editor of Avotaynu Magazine, a journal of Jewish genealogy and scholarship. Sack is the only genealogist listed in . She was instrumental in founding the (currently chairperson of the board), (founding president), International Association of Jewish Genealogical Societies, and Avotaynu. Sack has chaired or co-chaired seven of the annual conferences on Jewish genealogy, authored seven books of use to genealogists and has consulted on numerous projects. A recipient of IAJGS Lifetime Achievement Award, she resides in Bethesda, Maryland, where she is a clinical psychologist in private practice, having received her degrees from Harvard University and George Washington University.