Who are the 12 tribes in the Bible?

Assuming you are referring to the twelve tribes of Israel, here they are:

Reuben, Simeon, Levi, Judah, Dan, Naphtali, Gad, Asher, Issachar, Zebulun, Joseph and Benjamin.

These are the twelve sons of the patriarch Jacob (as in "Jacob and the Amazing Technicolor Dreamcoat", and they were born in that order.

All of them except Judah and Benjamin (often referred to as "the half-tribe of Benjamin") have been lost, leading to the name "the ten lost tribes". There are lots of conspiracy theories involved there.