Iaso or Ieso (ancient Greek Ἰασώ; Ionic Greek Ἰησώ) was the Greek goddess of recuperation from illness. The daughter of Asclepius, she had five sisters: Aceso, Aglæa/Ægle, Hygieia, Meditrina, and Panacea. All six were associated with some aspect of health or healing.


Very little is actually known about Iaso. She was probably considered a demigod, unlike her sister Panacea, who was given full "god" status. She did, however, have followers, the Iasides ("sons of Iaso").

Pausanias (author of Periegesis of Greece) wrote this of Amphiaraus in Oropos, Attica, in the 2nd century A.D.:

"The altar shows parts. One part is to Heracles, Zeus, and Apollo Healer, another is given up to heroes and to wives of heroes, the third is to Hestia and Hermes and Amphiaraus and the children of Amphilochus. But Alcmaeon, because of his treatment of Eriphyle, is honored neither in the temple of Amphiaraus nor yet with Amphilochus. The fourth portion of the altar is to Aphrodite and Panacea, and further to Iaso, Hygeia, and Athena Healer. The fifth is dedicated to the nymphs and to Pan, and to the rivers Achelous and Cephisus."

Aristophanes mentions Iaso humorously in Ploutos, when one of the characters, Cario, reports that Iaso blushed upon his passing gas.

For more information on the genealogy of Iaso, see Panacea.

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