The Narratio de vita sua (an autobiographical account of conversion) and the Tractatus astronomicus et meteorologicus (a discussion of Greek pagan and Babylonian-Chaldean astronomy) are attributed to Dionysius the Areopagite, who, according to Acts 17:34, was converted to Christianity by Paul. The texts, which have been transmitted in Oriental manuscripts, are presented here in a critical edition accompanied by a German translation.