Who is the god of fire and forge?

Hephaestus, Greek god of fire and the forge.

Vulcan, the roman name for Hephaestus, see above.

Pele, Hawaiian goddess of fire and wisdom.

Hestia, Greek goddess of fire, the hearth, the heart of spirituality and emotional stability in the home.

Vesta, Roman name for Hestia, see above.

Brigid, (also known as: Brigit, and Brighid) Celtic goddess of fire, the forge, poetry.

Ho-Masubi or Kagu-Tsuchi, the Japanese god of fire.

Agni, Hindu god of fire.