The 2006 Campeonato Brasileiro Série A was the 50th edition of the Campeonato Brasileiro Série A, a Brazilian professional league for men's football clubs.
It began on April 15, 2006, and reached its end on December 3, 2006.
The format was similar to the 2005 edition, though fielding two fewer teams.
At the season finale, the team with the most accumulated points (3 for each win, 1 for a draw, none for a loss) was declared champion.
From June 9 until July 9, the tournament was suspended for the FIFA World Cup 2006.