The 1979–80 Algerian Cup is the 18th edition of the Algerian Cup. MA Hussein Dey are the defending champions, having beaten JE Tizi Ouzou 2–1 in the previous season's final.
| كأس الجزائر | |
|---|---|
| Tournament details | |
| Country |  Algeria |
| Defending champions | MA Hussein Dey (1) |
| Final positions | |
| Champions | EP Sétif (5) |
| Runner-up | USK Alger |
Round of 64
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Round of 32
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Round of 16
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Quarter-finals
edit| 9 May 1980 | USK Alger | 2 – 0 | MA Hussein Dey | , |
| 9 May 1980 | JE Tizi Ouzou | 2 – 0 | ASC Oran | Stade 5 Juillet 1962, Algiers |
| 9 May 1980 | EP Sétif | 3 – 1 | GCR Mascara | Stade 8 Mai 1945, Sétif |
Semi-finals
edit| 23 May 1980 | USK Alger | 0 – 0 (a.e.t.) (6 - 5 p) | JE Tizi Ouzou | Stade 5 Juillet 1962, Algiers |
| 23 May 1980 | EP Sétif | 2 – 1 (a.e.t.) | DNC Alger | Stade 5 Juillet 1962, Algiers |