Rev. Protopresbyter Nicolas Kazarian, PhD, was born in France, where he pursued his undergraduate degree at the Saint Sergius Orthodox Theological Institute in Paris (France), graduating with a BA and a MA. He continued his studies at the University of Cyprus, in Nicosia (Cyprus), and Thessaloniki (Greece), before moving to Switzerland to start an MA in Orthodox Theology at the Orthodox Theological Institute of Chambésy. He completed his Ph.D. in Geopolitics at the Sorbonne (Paris, France). He later attended the 2017 KAICIID International Fellows Program (Vienna, Austria) on interfaith dialogue and was also a visiting fellow at the Orthodox Christian Studies Center of Fordham University.

He has authored two books and over 60 articles about the Orthodox Church, ecumenical dialogue, interfaith relations, and geopolitics in various languages. He has also taught Ecumenical Relations at the Catholic University of Paris and at the Saint Sergius Orthodox Theological Institute. He was recently elected to the Central Committee of the World Council of Churches and co-moderator of Religions for Peace USA.

He serves as Ecumenical Officer and Director of the Department on Inter-Orthodox, Ecumenical and Interfaith Relations, the Greek Orthodox Archdiocese of America.

He is the parish priest of Saint Eleftherios Greek Orthodox Church in Manhattan.