阿莱泰乌斯（英语：Aretaeus of Cappadocia）。2世纪前后罗马帝国统治卡帕多西亚时期的医学著作家，他用希腊语着有《医书》一书。

Aretaeus (Greek: Ἀρεταῖος) is one of the most celebrated of the ancient Greek physicians, of whose life, however, few particulars are known. He presumably was a native or at least a citizen of Cappadocia, a Roman province in Asia Minor (Turkey), and most likely lived around first century CE. He is generally styled "the Cappadocian" (Καππάδοξ).