Eastern Orthodoxy in Saudi Arabia is a Christian minority consisting of people of various nationalities that are adherents of the Eastern Orthodox Church.
The percentage of Saudi Arabian citizens who are Christians is officially zero. The Saudi Arabian Mutaween (Arabic: مطوعين), or Committee for the Promotion of Virtue and the Prevention of Vice (i.e., the religious police) prohibits the practice of any religion other than Islam. The Greek Orthodox have some numerical strength. Major nationalities in Saudi Arabia include Egyptians, Syrians, Palestinians and Lebanese.
References
Eastern Orthodoxy in Saudi Arabia Wikipedia(Text) CC BY-SA