Anastasi wa Sinai (alifariki baada ya mwaka 700), alikuwa mmonaki, padri, abati na mwandishi maarufu wa monasteri ya Mt. Katerina katika Mlima Sinai (Misri). Habari chache tulizonazo za maisha yake zinapatikana katika maandishi yake mengi. Zamani alichanganywa na Anastasi I wa Antiokia (559 – 598), hivi kwamba badhi ya maandishi hayaeleweki ni ya nani kati yao. Tangu kale anaheshimiwa na Waorthodoksi na Wakatoliki kama mtakatifu. Sikukuu yake huadhimishwa tarehe 21 Aprili. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko Mababu wa Kanisa Uthemann 2006, 326-330. J. J. Munitiz, "Foreword," in Kuehn-Baggarly 2007, IX. Weiss 1965, XX. Kuehn-Baggarly 2007, XIII-XXIII. J. Munitiz, "Foreword," in Kuehn-Baggarly 2007, IX. Martyrologium Romanum https://catholicsaints.info/saint-anastasius-of-sinai/ Haldon, John. "The Works of Anastasius of Sinai : A Key Source for the History of Seventh-Century East Mediterranean Society and Belief." In The Byzantine and Early Islamic Near East, Volume I: Problems in the Literary Source Material, edited by A. Cameron and L. Conrad.