In Greek mythology, Gorgythion (Greek: Γοργυθίων, gen.: Γοργυθίωνος) was one of the sons of King Priam of Troy at the time of the Trojan War and appears as a minor character in Homer's Iliad. His mother was Castianeira of Aisyme.

Those scholars who believe that the Trojan War was a real war generally date it to the 12th or 11th centuries BC. The dates given for the war by Eratosthenes, which are 1194–1184 BC, are a little later than the archaeological evidence of the burning of Troy VII, excavated by Manfred Korfmann in the 1980s.

Near the end of the Iliad, Priam himself tells Achilles: "I begat the bravest sons in wide Troy, of whom I say that none are left. Fifty there were to me, when the sons of the Greeks arrived; nineteen indeed from one womb, but the others women bore to me in my palaces. And of the greater number fierce Mars indeed has relaxed the knees under them..." Gorgythion is referred to at his death as "...the brave son of Priam". Of Gorgythion's mother Castianeira, Homer says (in Samuel Butler's translation) "His mother, fair Castianeira, lovely as a goddess, had been married from Aesyme."