The Campeonato Brasileiro Sub 20 2008 (Under-20 Brazilian Championship) was the 3rd edition of the annual tournament organized by FGF, the Rio Grande do Sul State Football Federation. Only players 20 years old or younger are allowed to play. The competition was contested by all teams on the Campeonato Brasileiro Série A 2008, except from Vasco and São Paulo, which were replaced by Corinthians and Juventude. It began on December 8 and the final match was played on December 21, 2008.