The Testaments of the Twelve Patriarchs is a much-debated apocryphal work, but it is usually considered to be a Christian work of the second century CE, including many, ancient Jewish traditions. It is of considerable significance for the history of Judaism and Christianity. The Armenian version, associated with the Armenian Bible translation, has long been considered to be a very faithful rendering of an early Greek text. The present work is a critical editio minor of this version, based on 11 selected manuscripts of a total of over 70. It is provided with an English translation, a commentary and extensive indexes, of importance alike to Armenian textual studies and translation practice. This completes the series of critical editions of the apocryphal works most closely associated with the biblical corpus in Armenian (4 Ezra - Stone, UPATS and Joseph and Asenath - Burchard, HUAS). These are some of the best editions of any Armenian biblical associated texts.