In Greek mythology, Ganymede (; ; Greek: , Ganymedes) is a divine hero whose homeland was Troy. He was the son of Tros of Dardania, from whose name "Troy" was supposed to derive, and of Callirrhoe. His brothers were Ilus and Assaracus. In one version of the myth, he is abducted by Zeus, in the form of an eagle, to serve as cup-bearer in Olympus. Homer describes Ganymede as the most beautiful of mortals:

The myth was a model for the Greek social custom of paiderastía, the socially acceptable erotic relationship between a man and a youth. The Latin form of the name was Catamitus (and also "Ganymedes"), from which the English word "catamite" derives.