Rev Dr Chrysostomos Nassis, a graduate of Hellenic College (class of ’95) and Holy Cross Greek Orthodox School of Theology (class of ’98), served the Ecumenical Patriarchate of Constantinople (1998-2000) as a Writer-Translator of the Office of the Chief Secretary, Local Deputy Coordinator of the Patriarchate’s Environmental Initiatives, and International Dignitaries and Diplomatic Corps Liaison.

He completed his doctoral studies at the Aristotle University of Thessaloniki Faculty of Theology in April 2006 and subsequently took on teaching positions at the St John of Damascus Institute of Theology of Balamand University, Tripoli, Lebanon, and the Supreme Ecclesiastical Academy (Seminary) of Thessaloniki. He currently holds the position of tenured Assistant Professor of Byzantine Liturgy and Liturgical Sources at the School Social Theology and Christian Culture at the Faculty of Theology of the Aristotle University of Thessaloniki where he is also director of the School’s Laboratory for Liturgical Studies.

Fr Chrysostomos has published extensively in his field and has participated in numerous scientific conferences both in Greece and abroad. He is a member of the Society of Oriental Liturgy and the Society for the Law of the Eastern Churches. He has represented the Ecumenical Patriarchate on various occasions in academic, ecclesiastical, and ecumenical settings and was appointed member of the Synodal Committee on Divine Worship of the Church of Cyprus. As a protopresbyter, Fr Chrysostomos serves the Church St Anthony, a dependency of the Monastery of St Theodora of the Holy Metropolis of Thessaloniki.