Charles Ellicott Commentary 2 Chronicles 26:1

"And all the people of Judah took Uzziah, who was sixteen years old, and made him king in the room of his father Amaziah." — 2 Chronicles 26:1 (ASV)

ACCESSION, AGE, AND CONDUCT OF UZZIAH. INFLUENCE OF THE PROPHET ZECHARIAH (2 Chronicles 26:1–5). (Compare to 2 Kings 14:21–22; 2 Kings 15:2–3.)

Then. — And.

Uzziah. —So the chronicler always names him, except in one place (1 Chronicles 3:12), where the name Azariah appears, as in 2 Kings 14:21, 2 Kings 15:1, 2 Kings 15:6, and so on. In 2 Kings 15:13, 2 Kings 15:30, 2 Kings 15:32, and 2 Kings 15:34, Uzziah occurs (though there also the Septuagint reads Azariah, thus making the usage of Kings uniform); it also appears in the headings of the prophecies of Hosea, Amos, and Isaiah. It is not, therefore, to be regarded either as a popular abbreviation or a transcriber’s blunder, as Schrader and others suggest.

In the Assyrian inscriptions of Tiglathpileser II, this king is uniformly called Azriyahu, that is, Azariah. Clearly, therefore, he was known by both names, but to foreigners chiefly by the latter. (Compare to Azareel—Uzziel, 1 Chronicles 25:4; 1 Chronicles 25:18.)