Jewish Koine Greek, or Jewish Hellenistic Greek, is the variety of Koine Greek or "common Attic" found in numerous Alexandrian dialect texts of Hellenistic Judaism, most notably in the Septuagint translation of the Hebrew Bible and associated literature, as well as in Greek Jewish texts from the Levant. The term is largely equivalent with Greek of the Septuagint as a cultural and literary rather than a linguistic category. The minor syntax and vocabulary variations in the Koine Greek of Jewish authors are not as linguistically distinctive as the later language Yevanic, or Judeo-Greek, spoken by the Romaniote Jews in Greece.
The term "Jewish Koine" is to be distinguished from the concept of a "Jewish koine" as a literary-religious—not a linguistic—concept.[1]