Monsignor Haddad, born in Beirut June 24, 1957, carried out his secondary studies at the Patriarchal College of Beirut until the last year of secondary school (Philosophy Faculty). He obtained a degree, as member of the Society of St. Paul Missionaries, in Philosophy and Theology at the St. Paul Institute of Harissa. He speaks fluent Arabic, French and English.
In 1981 he was ordained deacon and priest on August 28, 1983. On March 21, 2002 the Holy Father erected the Apostolic Esarchy for the Catholic Greek-Melkite residents of Argentina, based in Córdoba, naming Monsignor Georges Haddad its first Apostolic Esarch, and assigning him the titular post of Mira of the Catholic Greek-Melkite.