Where is the name Lucifer written in the Bible?

Answer 1

there is a reference to Lucifer in Isaiah chapter 14, but this refers to the king of Babylon, who laid the nations low. It talks of his pomp and splendour, how he had ruled the nations in anger, and his fate after his overthrow by the king of Persia. He had compared himself to the Morning Star (and was thus derisorily called 'Lucifer' - lucem ferre, which mean "light-bearer", a name for the dawn appearance of the planet Venus) and had thought that he would ascend into heaven and sit among the stars, but was now himself persecuted. Christian scholars misunderstood this text and assumed that it referred to Satan or the devil.

Answer 2

Lucifer is only mentioned once in The Bible:

How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations! (Isaiah 14.12)

Additional Comment:

Some also say Lucifer (before he fell and became Satan) is being spoken of in Ezekiel 28:11-19 as the symbolic King of Tyre (different from the man called the Prince of Tyre above).