Multiple biblical characters with the name Hadad (Hadar) existed.

• Hadad is the name of the Semitic storm god.
• Abraham's son Ishmael had a son named Hadar who was a chief.^[1]
• Hadad ben Bedad, an early king of Edom.
• Hada, the last king of Edom.^[2][3] He ruled from Pau, Edom.^[4] Hadad's wife was Queen Mehetabel ("God makes happy"), daughter of Matred and granddaughter of Me-Zahab.^[5]
• Hadad the Edomite, a member of the royal house of Edom, who married the sister of Pharaoh's wife, Queen Tahpenes, and escaped from a massacre under Joab, fleeing to Egypt.^[6]