The 2011–12 Algerian Ligue Professionnelle 2 is the second season of the league under its current title and current league division format.
This is the forty-eighth season of second-division football since its establishment in 1962.
A total of 16 teams are to contest in the league.
The league started on 9 September 2010 and is scheduled to conclude on 17 May 2012.
Promoted to Ligue 1 Relegated to Ligue Nationale Relegated from Ligue 1 Promoted from Ligue Nationale