Hadad (Ugaritic: 𐎅𐎄, romanized: Haddu), Haddad, Adad (Akkadian: 𒀭𒅎 IM, pronounced as Adād), or Iškur (Sumerian) was the storm- and rain-god in the Canaanite and ancient Mesopotamian religions.He was attested in Ebla as "Hadda" in c. 2500 BCE.
From the Levant, Hadad was introduced to Mesopotamia by the Amorites, where he became known as the Akkadian (Assyrian-Babylonian) god Adad. Adad and Iškur are usually written with the logogram 𒀭𒅎 IM - the same symbol used for the Hurrian god Teshub. Hadad was also called Rimon/Rimmon, Pidar, Rapiu, Baal-Zephon, or often simply Baʿal (Lord); however, the latter title was also used for other gods. The bull was the symbolic animal of Hadad. He appeared bearded, often holding a club and thunderbolt and wearing a bull-horned headdress. Hadad was equated with the Greek god Zeus, the Roman god Jupiter (Jupiter Dolichenus), as well as the Babylonian Bel.