The Gregorian Church was organized in the third century and became autocephalous as a national church in the fourth century. In the sixth century it modified the formulations of the Council of Chalcedon of 451 that confirmed the dual nature of Christ in one person. Instead the Gregorian Church adopted a form of Monophysitism that believes in the single divine nature of Christ, a belief which is slightly different from the belief of the Copts and the Syrian Orthodox Church. The Armenian Orthodox Church has five patriarchs, of whom the Catholicos of Etchmiadzin in Soviet Armenia is the most revered. It also has an Armenian liturgy.

The Armenians in Lebanon were refugees who had fled Turkey during and after World War I. In 1987 they resided in Beirut and its northern suburbs as well as in Anjar. They are admired for their skills as craftsmen and diligence, which have enabled them to gain prominent economic positions. Politically, Armenians advocate compromise and moderation.

Data as of December 1987