A paean is a song or expression of thanksgiving, triumph, healing or praise.

Paean, Paeeon, Paeëon, Paeon, Paian, Paieon, or Paion (from the Ancient Greek , , or ) may refer to:

People Paeon of Amathus, an early Hellenistic historian from Amathus on the island of Cyprus Paeon (mythology), several figures from Greek mythology, including: Paean (god), the physician of the Greek gods Paeon (father of Agastrophus), the father of Agastrophus in Homer's Iliad, and the husband of Cleomede and father of Laophoon in Quintus Smyrnaeus' Posthomerica Paeon (son of Antilochus), a lord of Messenia, from whom the Attic clan and deme of Paeonidae or Paionidai is supposed to have derived its name Paeon (son of Endymion), from whom the district of Paionia was believed to have derived its name Paeon (son of Poseidon), the son of Helle and Poseidon

Places Paia, Achaea, a municipal unit in Achaea, Greece Paion (Thrace), the ancient Greek city located in Thrace

Other uses Paean (horse), a British-trained racehorse Paeon (prosody), a metrical foot containing four syllables, where one of the syllables is long and the other three are short Paeon diagyios, another name for the metrical foot cretic or amphimacer, containing three syllables: long, short, long "A Paean", the original name for "Lenore", a poem by Edgar Allan Poe