'''Cyrus of Alexandria''' was a
[[Melchite]] patriarch of the Egyptian [[Patriarch of Alexandria |see of Alexandria]] in the seventh century, one of the authors of [[Monothelitism]] and last [[Byzantine Empire|Byzantine]] prefect of Egypt; died about 641.
Cyrus' communications with Mohammad, the Prophet of Islam, also survive to this day.<sup>[http://wamohammadah.maktoobblog.com/?post=265055],[http://en.wikipedia.org/wiki/Muqawqis]</sup> Cyrus offered Maria, a Coptic girl, as a gift to Prophet Mohammad.<sup>[http://en.wikipedia.org/wiki/Maria_al-Qibtiyya]</sup>
Cyrus was posthumously condemned as a heretic in the Lateran Council of 649 ([[Heinrich Joseph Dominicus Denzinger|Denzinger]], Enchiridion, 217, 219) and in 680 at the [[
Third Council of Constantinople|Third Œcumenical Council of Constantinople]] (Denzinger, 238; Mansi, XI, 554).