Eulogi wa Aleksandria (kwa Kigiriki: Εὐλόγιος I; alifariki 13 Septemba 608) alikuwa Patriarki wa Kigiriki wa Aleksandria (Misri) tangu mwaka 580 hadi 608. Mwenye asili ya Syria, aliishi huko kama mmonaki padri. Baada ya kuchaguliwa kuwa Patriarki, alipinga mafundisho ya Wamonofisiti na wengineo akiungana na Papa Gregori I wa Roma. Tangu kale anaheshimiwa na Wakatoliki na Waorthodoksi kama mtakatifu. Sikukuu yake huadhimishwa tarehe ya kifo chake au 13 Februari au 13 Juni. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Besides the above works and a commentary against various sects of Monophysites (Severians, Theodosians, Cainites and Acephali) he left eleven discourses in defence of Pope Leo I and the Council of Chalcedon, also a work against the Agnoetae, submitted by him before publication to Pope Gregory I, who after some observations authorized it unchanged. With exception of one sermon and a few fragments, all the writings of Eulogius have perished. Eulogius (581–608). Official web site of the Greek Orthodox Patriarchate of Alexandria and All Africa. Iliwekwa mnamo 2011-02-07. E.g. Gregory the Great.