| Competition: | Algerian Championnat National |
| Season: | 1979–80 |
| Winners: | JE Tizi-Ouzou |
| Relegated: | USK Alger IR Saha |
| League Topscorer: | Nasser Bouiche (19 goals) |
| Biggest Home Win: | EP Sétif 8 - 0 GCR Mascara |
| Matches: | 240 |
| Total Goals: | 544 |
| Prevseason: | 1978–79 |
| Nextseason: | 1980–81 |
The 1979–80 Algerian Championnat National was the 18th season of the Algerian Championnat National since its establishment in 1962. A total of 14 teams contested the league, with MP Alger as the defending champions, The Championnat started on october 5, 1979. and ended on June 13, 1980.
Teams promoted from Algerian Division 2 1979-1980
Teams relegated to Algerian Division 2 1980-1981