The 2011–12 Algerian Ligue Professionnelle 1 will be the forty-eighth season of the Algerian Ligue Professionnelle 1 since its establishment in 1962. A total of 16 teams will contest the league, with ASO Chlef as the defending champions. The league is scheduled to start on 6 September 2011, and end on 22 May 2012.
While the league was originally scheduled to start on 10 September 2011, the official start date will be 6 September 2011, with a match between JS Kabylie and MC Alger. The tie was moved up due to the two club's participation in African competition.
Updated to games played on 19 May 2012.
Rules for classification:
1) points; 2) goal difference; 3) number of goals scored (C) = Champion; (R) = Relegated; (P) = Promoted; (E) = Eliminated; (O) = Play-off winner; (A) = Advances to a further round.
Only applicable when the season is not finished: (Q) = Qualified to the phase of tournament indicated; (TQ) = Qualified to tournament, but not yet to the particular phase indicated; (RQ) = Qualified to the relegation tournament indicated; (DQ) = Disqualified from tournament.