In Hesiod’s Works and Days, Hermes gave Pandora her name.
Hesiod describes Zeus ordering the creation of Pandora as part of his response to Prometheus’s theft of fire. Hephaestus shaped her from earth, while other gods contributed qualities or skills. Hermes, the divine messenger, is associated with giving her speech and a name in the poem’s account.
The name Pandora means “all-gifted,” referring to the gifts supplied by the gods. Hesiod’s version is the oldest surviving literary account of the Pandora story and differs in important ways from later retellings.
Many summaries focus only on Zeus, because he directs the episode, or on Hephaestus, because he fashions Pandora. Those roles are different from Hermes’s role in naming her. The surviving Greek text is also why details are often discussed through translations rather than a single universally identical English wording.