Jehoahaz (meaning "Jehovah his sustainer", or "he whom Jehovah holdeth") was the name of several people mentioned in the Old Testament.

1. Jehoahaz of Israel, king of Israel
2. Jehoahaz of Judah, king of Judah
3. The youngest son of Jehoram, king of Judah (2 Chronicles 21:17; 22:1, 6, 8, 9), more commonly known as Ahaziah.