Which king of Judah was also called Azariah?

Answer: Uzziah

2 Kings calls Amaziah's son both Azariah and Uzziah: Jotham is named the son of Azariah (15:7) and the son of Uzziah (15:32).

“In the second year of the reign of Pekah son of Remaliah over Israel, Jotham son of Uzziah became king of Judah.”— 2 Kings 15:32 (BSB)