Contradiction with Genesis 17:5
This verse describes a name change initiated by God, whereas in Daniel 1:7, the name change is carried out by an official of the Babylonian king.
Genesis 17:5: Neither shall thy name any more be called Abram, but thy name shall be Abraham; for a father of many nations have I made thee. [Abraham: that is, Father of a great multitude]
Contradiction with 2 Kings 24:17
In this verse, a name is changed by a king, contrasting with Daniel 1:7 where a lesser official makes the change.
2 Kings 24:17: And the king of Babylon made Mattaniah his father's brother king in his stead, and changed his name to Zedekiah.
Contradiction with Isaiah 62:2
Here, a name change is prophesied as an honor from God, unlike in Daniel 1:7 where the change is part of assimilation into Babylonian culture.
Isaiah 62:2: And the Gentiles shall see thy righteousness, and all kings thy glory: and thou shalt be called by a new name, which the mouth of the LORD shall name.
Contradiction with Revelation 2:17
This verse speaks of a divinely given new name known only by the receiver, while in Daniel 1:7, the new names are publicly assigned by an authority figure.
Revelation 2:17: He that hath an ear, let him hear what the Spirit saith unto the churches; To him that overcometh will I give to eat of the hidden manna, and will give him a white stone, and in the stone a new name written, which no man knoweth saving he that receiveth [it].
Contradiction with John 1:42
Jesus changes Simon's name to Cephas as a sign of new identity and mission, differing from the non-spiritual renaming in Daniel 1:7.
John 1:42: And he brought him to Jesus. And when Jesus beheld him, he said, Thou art Simon the son of Jona: thou shalt be called Cephas, which is by interpretation, A stone.