Aretha (kwa Kiarabu: الحارث, "al-Haarith") alikuwa kiongozi wa Wakristo Waorthodoksi wa Mashariki wenye asili ya Ethiopia walioishi Najran (leo Ukhdūd nchini Saudia) mwanzoni mwa karne ya 6. Aliuawa pamoja na wenzake walau 340, 4,000 kama si 20,000 (akiwemo mke wake Ruma na mabinti wao wanne) mwaka 523, wakati wa dhuluma ya mfalme Dhu Nuwas aliyekuwa ameongokea dini ya Uyahudi . Anajulikana kupitia Acta S. Arethae (pia: Martyrium sancti Arethae au Martyrium Arethae) Kurani inalaani dhuluma hiyo katika sura LXXXV:4-8. Tangu kale anaheshimiwa na Wakatoliki, Waorthodoksi na Waorthodoksi wa Mashariki kama mtakatifu mfiadini. Sikukuu yake na ya wenzake huadhimishwa nao tarehe 24 Oktoba. Watakatifu wa Agano la Kale Orodha ya Watakatifu Wakristo Orodha ya Watakatifu wa Afrika Orodha ya Watakatifu Wafransisko R. Fulton Holtzclaw (1980). The Saints go marching in : a one volume hagiography of Africans, or descendants of Africans, who have been canonized by the church, including three of the early popes. Shaker Heights, OH: Keeble Press, 120. OCLC 6081480. “Najran, in Yemen, was the scene, in 523, of a massacre of Ethiopians and other Christians by Jews and Arabs.