| Competition: | Algerian Ligue Professionnelle 2 |
| Season: | 2011-12 |
| Winners: | CA Bordj Bou Arréridj |
| Promoted: | CA Bordj Bou Arréridj JS Saoura USM Bel-Abbès |
| Relegated: | US Biskra RC Kouba Paradou AC |
| Biggest Home Win: | (23 September 2011) US Biskra 6-1 SA Mohammadia (10 March 2012) |
| Biggest Away Win: | (4 November 2011) |
| Highest Scoring: | (14 October 2011) |
| Matches: | 240 |
| Total Goals: | 531 |
| Longest Wins: | 9 games CA Bordj Bou Arréridj |
| Longest Unbeaten: | 12 games CA Bordj Bou Arréridj |
| Longest Losses: | 7 games US Biskra |
| Highest Attendance: | N/A |
| Lowest Attendance: | N/A |
| Average Attendance: | N/A |
| Prevseason: | 2010–11 |
| Nextseason: | 2012–13 |
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