| Algerian Cup | |
| Year: | 2002–03 |
| Champions: | USM Alger (6th title) |
| Runner-Up: | CR Belouizdad |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
The 2002–03 Algerian Cup was the 39th edition of the Algerian Cup. USM Alger won the Cup by defeating CR Belouizdad 2–1 in extra time in the final after the game ended 1-1. It was USM Alger's sixth Algerian Cup in its history.
| Tie no | Home team | Score | Away team | |
|---|---|---|---|---|
| 1 | USM Alger | 1–0 | OMR El Annasser | |
| 2 | USM Sétif | 1–1 (4-5 p) | CR Belouizdad | |
| 3 | WA Tlemcen | 0–1 | MC Oran | |
| 4 | CA Bordj Bou Arréridj | 0–0 (3-4 p) | NA Hussein Dey | |
| 5 | MO Constantine | 1–0 | CRB El Milia | |
| 6 | JS Kabylie | 2–0 | ES Béchar | |
| 7 | CA Batna | 0–1 | Hydra AC | |
| 8 | US Chaouia | 0–1 | USM Bel-Abbès |
| Tie no | Home team | Score | Away team | |
|---|---|---|---|---|
| 1 | USM Alger | 2–0 | NA Hussein Dey | |
| 2 | USM Bel-Abbès | 0–1 | MC Oran | |
| 3 | CR Belouizdad | 2–1 | JS Kabylie | |
| 4 | Hydra AC | 0–4 | MO Constantine |
| Tie no | Home team | Score | Away team | |
|---|---|---|---|---|
| 1 | CR Belouizdad | 1–0 | MO Constantine | |
| 2 | USM Alger | 3–0 | MC Oran |
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| Home team | Score | Away team | |
|---|---|---|---|
| USM Alger | 2–1 (a) | CR Belouizdad |