Melicertes was the son of King Athamas of Boeotia and his second wife, Ino, in Greek mythology. He was the brother of Learchus. When he was young, the goddess Hera punished Ino for helping raise Dionysus, by driving Athamas insane. In a fit of madness, Athamas killed Learchus, and then tried to capture Ino and Melicertes, who evaded him by jumping into the sea. Ino and Melicertes survived thanks to Zeus, and were later deified, acquiring the names Leucothea and Palaemon respectively.
Melicertes Is also called Melecertes, Palaemon.