Miltiadis Konstantinou was born in 1952 in Kozani. He studied theology at the Aristotle University of Thessaloniki and did special studies in the literature of the ancient peoples of Mesopotamia and Syria-Palestine in Tübingen, Germany. Since 1984 he teaches Old Testament and Biblical Hebrew Language at the Department of Theology of AUTH. He is a founding member of the Board of Greek Bible Society and in charge of the programme for the translation of the Old Testament in Modern Greek. He is also member of the Scientific Committee for the translation project of the United Biblical Companies worldwide.

Konstantinou was awarded by the Ecumenical Patriarchate with the honorary title of the “Teacher of the Gospel” while he is the delegate of the Greek church to the International Commission for the Angilcan-Orthodox dialogue.