Verses with the word tartan in the Old Testament (2 verses):

2 Kings 18:17
And the king of Assyria sent Tartan and Rabsaris and Rabshakeh from Lachish to king Hezekiah with a great host against Jerusalem. And they went up and came to Jerusalem. And when they were come up, they came and stood by the conduit of the upper pool, which is in the highway of the fuller's field.

Isaiah 20:1
In the year that Tartan came unto Ashdod, (when Sargon the king of Assyria sent him,) and fought against Ashdod, and took it;