Cyrtones or Kyrtones (Ancient Greek: Κύρτωνες), anciently called Cyrtone or Kyrtone (Κυρτώνη), was a city of Boeotia, east of the Lake Copais, and 20 stadia from Hyettus, situated upon a lofty mountain, after crossing which the traveller arrived at Corsia. Cyrtones contained a grove and temple of Apollo, in which were statues of Apollo and Artemis, and a fountain of cold water, at the source of which was a chapel of the nymphs.