“The Name of Yahweh” a name for God?

for name also means 'fame' or 'reputation'

שׁמם which is considered a different root, but has the same form as the plural of םשׁ means 'desolate' or 'to make desolate'. Since שׁם is in שׁמם, the one who makes desolate gets a reputation for doing it.

The context of Is 30.27 is suggestive of the linked meaning:

See, the "reputation for making desolate" of Yaweh comes from afar, with burning anger and dense clouds of smoke; his lips are full of wrath, and his tongue is a consuming fire.