Mnesitheus (; 4th century BC) of Athens, was a Greek physician, who probably lived in the 4th century BC, as he is quoted by the comic poet Alexis. He belonged to the Dogmatic school of medicine. He enjoyed a great reputation, and was particularly celebrated for his classification of diseases. He wrote a work "On Diet," àõÃÂὶ á¼ÂôõÃÂÃÂῶý, or, according to Galen, àõÃÂὶ á¼ÂôõÃÂüìÃÂÃÂý, which is several times quoted by Athenaeus. He wrote another work, "On Tippling", in which he recommended this practice. He is frequently mentioned by Galen, and generally in favourable terms; as also by Rufus of Ephesus, Aulus Gellius, Soranus of Ephesus, Pliny, Plutarch, and Oribasius. His tomb was still existing in Attica in the time of Pausanias.
A physician of this name from Cyzicus in Mysia is quoted by Oribasius.