| Algerian Cup | |
| Year: | 1977–78 |
| Other Titles: | كأس الجزائر |
| Defending Champions: | JS Kawkabi (1) |
| Winners: | CM Belcourt (4) |
| Second: | USM Alger |
| Prev Season: | 1976–77 |
| Next Season: | 1978–79 |
The 1977–78 Algerian Cup was the 16th edition of the Algerian Cup. JS Kawkabi were the defending champions, having beaten NA Hussein Dey 2–1 in the previous season's final.