Klio (гр. Κλειώ, Klió), je u grčkoj mitologiji bila muza i zaštitnica istorije. Njeno ime znači „glasnik“. Kao i ostale muze, ona je kćerka boga Zevsa i Mnemosine, boginje poezije, umetnosti i nauke. Klio je sa Pirom, kraljem Makedonije, imala sina Hijacinta. Naslikao Pjer Minjar, dvorski slikar Luja XIV (17. vek).

Cleo (gr. Κλειώ, Clio), in Greek mythology, muse and patroness of history. Her name means "messenger." Like other muses, she is the daughter of the god Zeus and Mnemosina, goddess of poetry, art and science. Clio had a son Hyacinth with Pyrrhus, king of Macedonia. Painted by Pierre Minjar, court painter to Louis XIV (17th century).