The 2013 Campeonato Brasileiro Série D was the fifth edition of the Campeonato Brasileiro Serie D, the fourth division of the Brazilian League.
It was contested by 40 clubs, four of which were promoted to the 2014 Campeonato Brasileiro Série C. The 40 teams are divided in eight groups of 5, playing within them in a double round-robin format.
The two best ranked in each group at the end of 10 rounds will qualify to the Second Stage, which will be played in home-and-away system.
However, teams who were not promoted will have to re-qualify for Série D 2014 through their respective state leagues.The competition can also be considered as 4 mini-tournaments (Group 1+2;3+4;5+6;7+8) because according to the playoff-structure, exactly one team of each "mini-tournament" will be promoted.
* Aparecidense was excluded by the STJD, because in the second leg against Tupi, the Aparecidense's physio Ramildo De Silva invaded the field to save a goal at the 89th minute.