Īdomeneus, in Greek myth, grandson of Minos and leader of the Cretans at the siege of Troy. In a storm on his way home he vowed to sacrifice the first living creature that met him, if he returned safe. This proved to be his son. He fulfilled, or tried to fulfil, his vow; in consequence a plague broke out and Idomeneus was driven into exile by the Cretans (and settled, according to Virgil, on the south coast of Italy).


