Metagenes (Greek: Μεταγένης) was a man in ancient Crete, son of the Greek Cretan architect Chersiphron, and was also an architect himself.
He was co-architect, along with his father, of the construction of the Temple of Artemis at Ephesus, one of the Seven Wonders of the Ancient World.
Chersiphron (/ˈkɜːrsɪfrɒn/; Ancient Greek: Χερσίφρων; fl. 6th century BC) was a Greek architect of Knossos in ancient Crete who designed the Temple of Artemis at Ephesus. The original temple was destroyed in the 7th century BC, and about 550 BC Chersiphron and his son Metagenes began a new temple, the Artemision, which became one of the Seven Wonders of the Ancient World in each of its three manifestations. It was burned by Herostratus in July 356 BC and rebuilt again.
The architect's name is recalled in Vitruvius, and in a passage of Pliny as "Ctesiphon", perhaps in confusion with the great Parthian city of the same name on the river Tigris.