in Greek religion, the god of fire. Originally a deity of Asia Minor and the adjoining islands (in particular Lemnos), he had an important place of worship at the Lycian Olympus. Born lame, Hephaestus was cast from heaven in disgust by his mother, Hera, and again by his father, Zeus, after a family quarrel; he was brought back by Dionysus. His ill-matched consort was Aphrodite, or else Charis, the personification of Grace.

As god of fire, Hephaestus became the divine smith and patron of craftsmen; the natural volcanic or gaseous fires already connected with him were often considered to be his workshops. His cult reached Athens not later than about 600 BC (although it scarcely touched Greece proper) and arrived in Campania not long afterward. In art Hephaestus was generally represented as a middle-aged, bearded man, although occasionally a younger, beardless type is found. He usually wore a short, sleeveless tunic and a round, close-fitting cap on his unkempt hair. His Roman counterpart was Vulcan.