If one excludes the Copts who adhere to an Ancient Egyptian heritage, the numbers of the Greek Orthodox Church adherents in Egypt, who are ethnically Greek and possibly Arab, is rather small - on the order of several thousand each.
There are several isolated Greek Orthodox communities, largely composed of Arabs, in the Sinai Peninsula, though the rest of Egypt also has tiny numbers of other than Copts minorities.

Most Egyptian Christians are Copts, who are mainly members of the Coptic Orthodox Church of Alexandria.
Although Copts in Egypt speak Egyptian Arabic, many of them do not consider themselves to be ethnically Arabs, but rather descendants of the ancient Egyptians.
The Copts constitute the largest population of Christians in the Middle East, numbering between 8,000,000 and 15,000,000.
The liturgical language of the Copts, the Coptic language, is a direct descendant of the Egyptian language.
Coptic remains the liturgical language of all Coptic churches.
If one excludes the Copts who adhere to an Ancient Egyptian heritage, the numbers of the Greek Orthodox Church adherents in Egypt, who are ethnically Greek and possibly Arab, is rather small - on the order of several thousand each. There are several isolated Greek Orthodox communities, largely composed of Arabs, in the Sinai Peninsula, though the rest of Egypt also has tiny numbers of other than Copts minorities.
Most Egyptian Christians are Copts, who are mainly members of the Coptic Orthodox Church of Alexandria. Although Copts in Egypt speak Egyptian Arabic, many of them do not consider themselves to be ethnically Arabs, but rather descendants of the ancient Egyptians. The Copts constitute the largest population of Christians in the Middle East, numbering between 8,000,000 and 15,000,000. The liturgical language of the Copts, the Coptic language, is a direct descendant of the Egyptian language. Coptic remains the liturgical language of all Coptic churches.
Arab Christians