Ahaz means in the bible: Possessor. King of Judah 2Kgs. 16; 2 Chr. 28; forms an alliance with Tiglath–pileser, the king of Assyria to resist an attack by Syria and Israel. 16:10; Isaiah’s message for Isa. 7; Dial of Ahaz 2 Kgs. 20:11; 23:12.
(in Bible Dictionary)