This essay on the Syriac versions of Tobit appears in Volume 2 of the Textual History of the Bible, edited by Armin Lange, concerning the Deuterocanonical Scriptures of the Old Testament, in particular in Vol.2C, in which the Book of Tobit is also included. According to the novelty of the methodological perspective of this work, we do not focus mainly on the most important testimonia textus, in view of the reconstruction of the original of each book, but rather we aim to examine all the known textual witnesses of each of the biblical books, paying therefore particular attention to the manuscript traditions, and considering specifically all the single linguistic traditions in which they come. This article therefore presents: 1. Manuscripts and Editions - 2. Translation Character: The First Section (1:1-7:11); The Second Section (7:11 [1° brm]-14:15) - 3. Translation Technique and Inner-Translational Features - Text-Critical Value