The 1981–82 Algerian Cup is the 20th edition of the Algerian Cup. USK Alger are the defending champions, having beaten ASC Oran 2–1 in the previous season's final.
| كأس الجزائر | |
|---|---|
| Tournament details | |
| Country |  Algeria |
| Defending champions | USK Alger (1) |
| Final positions | |
| Champions | DNC Alger (1) |
| Runner-up | NA Hussein Dey |
Round of 64
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Round of 32
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Round of 16
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Quarter-finals
edit| 26 March 1982 | MP Alger | 4 – 4 (a.e.t.) (3 - 0 p) | USK Alger | Stade 5 Juillet 1962, Algiers |
Bousri  29', 77'Bellemou 30'Mahiouz 104' |
9', 82' Boutemine 79' Guedioura 91' Ali Messaoud |
| 26 March 1982 | DNC Alger | 0 – 0 (a.e.t.) (3 - 1 p) | USM El Harrach | Stade 20 Août 1955, Algiers |
| 26 March 1982 | GCR Mascara | 1 – 2 | NA Hussein Dey | Stade du 19 Juin 1965, Oran |
| 26 March 1982 | CM Constantine | 1 – 2 | RS Kouba | Stade 8 Mai 1945, Sétif |
Semi-finals
edit| 21 May 1982 | DNC Alger | 3 – 1 | MP Alger | Stade 5 Juillet 1962, Algiers |
| Demdoum 30' Aliouane 37'Khelloufi 90' |
79' Laaouada |
| 21 May 1982 | NA Hussein Dey | 1 – 1 (a.e.t.) (? - ? p) | RS Kouba |