2002–03 Algerian Championnat National

The 2002–03 Algerian Championnat National was the 41st season of the Algerian Championnat National since its establishment in 1962. A total of 16 teams contested the league, with USM Alger as the defending champions, The Championnat started on August 22, 2002. and ended on May 13, 2003.

Promotion and relegation
Teams promoted from Algerian Division 2 2002–2003
 * MC Alger
 * US Chaouia

Teams relegated to Algerian Division 2 2003–2004
 * ASM Oran
 * MO Constantine