Omar Derdour (Arabic: ??? ??????), full name Abou El Kacem Omar Derdour (13 October 1913 – 19 March 2009), was an Algerian Muslim leader, nationalist, and political worker.
A disciple of Abdelhamid Ben Badis, he was active in the Islamic reformation of Algeria and the Algerian War of Independence.
After independence, Omar Derdour devoted himself to teaching, became a founding member of the Islamic Institute, and founded numerous other Muslim institutions and schools.