In Hesiod’s Theogony, Hephaestus is described as fashioning the first woman Pandora.
Hephaestus was the Greek god associated with metalworking, fire, craftsmanship, and the forge. In the Theogony, Zeus commands him to create a woman as part of the punishment connected with Prometheus’s theft of fire. Other gods then contribute qualities or gifts to the newly made figure.
Theogony is one of Hesiod’s two major surviving poems, alongside Works and Days. Its treatment of Pandora is briefer than the later, more detailed account in Works and Days, but it establishes the connection between her creation and Zeus’s response to Prometheus.
A common mix-up is to assign the whole creation to Athena, because Athena is associated with crafts and appears in later retellings as an important giver of abilities. Hesiod’s Theogony specifically places the act of fashioning Pandora with Hephaestus.