 2005 Campeonato Brasileiro Série B

The Campeonato Brasileiro Série B 2005, the second level of the Brazilian National League, was played from April 23 to November 26, 2005.The competition had 22 clubs, of which two were promoted to the Série A and six were relegated to the Série C.

In the first round, every team played against each other, much like what happens in the Série A.