In Hesiod's Works and Days, Hermes gave Pandora her name.
The name Pandora is commonly explained as meaning “all-gifted” or “all-giving,” reflecting the gifts supplied by the gods who helped create her. Hesiod describes Pandora as part of Zeus's punishment of humanity after Prometheus stole fire. Different gods contribute qualities or adornments, and Hermes is the divine figure associated with giving her speech and naming her.
This detail is easy to confuse with the better-known elements of the story, such as Hephaestus shaping Pandora from earth or Zeus ordering her creation. The gods' roles vary somewhat between Hesiod's Works and Days and his Theogony, so precise wording matters when identifying the source.
The name “Pandora” does not originally mean that she personally gave every gift. It refers to the gifts bestowed upon her, a point sometimes lost in later retellings that treat the box as the entire myth.