The ** 2006 Campeonato Brasileiro Série C**, the third division of the Brazilian League, was contested by 63 clubs, four of which eventually qualified to the second division to be contested in 2007. No teams were relegated, since there was no fourth division in the Brazilian league.

Competition format

First stage

The 63 teams play in 15 groups of four and one group of three teams (because the Football Federation of Acre failed to appoint one affiliated team). Within each group, the four teams play a double round robin, i.e. they play each other in home and away matches, totalling six matchdays. The two best ranked teams in each group qualify to the Second Stage.

Second stage

The 32 teams qualified from the First Stage play in eight groups of four. Within each group, the four teams play a double round robin, i.e. they play each other in home and away matches, totalling six matchdays. The two best ranked teams in each group qualify to the Third Stage.

Third stage

The 16 teams qualified from the Second Stage play in four groups of four. Within each group, the four teams play a double round robin, i.e. they play each other in home and away matches, totalling six matchdays. The two best ranked teams in each group qualify to the Final Stage.

Final Stage

The eight teams qualified from the Third Stage are put together in a single group. They play a double round robin, i.e. they play each other in home and away matches, totalling fourteen matchdays. The four best ranked teams are automatically promoted to the Série B in 2007.

Participating teams

The participating teams are sorted by state:

Stages of the competition

First stage

Second stage

Third stage

Final stage