Carystus was a polis (city-state) on ancient Euboea. It was situated on the south coast of the island, at the foot of Mount Oche. It is mentioned by Homer in the Catalogue of Ships in the Iliad, as controlled by the Abantes. The name also appears in the Linear B tablets as "ka-ru-to". Thucydides writes that the town was founded by Dryopes. According to the legend, its name was derived from Carystus, the son of Cheiron.