On June 21, 2005, ASO Chlef won its first domestic title after beating USM Sétif 1–0 in the final of the 2005 Algerian Cup with a goal from Mohamed Messaoud in extra-time.

On June 21, 2011, led by head coach Meziane Ighil, ASO Chlef won its first Algerian Ligue Professionnelle 1 title after second-placed CR Belouizdad lost to USM El Harrach.

[5] On May 12, 2012, ASO Chlef beat Sudanese club Al-Hilal 4–2 in a penalty shoot-out in the second round of the 2012 CAF Champions League after the two legs ended up tied 2–2 to qualify to the group stage for the first time in the club's history.

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Below are the notable former players who have represented ASO Chlef in league and international competition since the club's foundation in 1947.