| Country | Spain | ||
|---|---|---|---|
| Teams | 16 | ||
| Champions | Espanyol | ||
| Runners-up | Mallorca | ||
| Matches played | 29 | ||
| Goals scored | 94 (3.24 per match) | ||
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The 2003 Copa del Rey Juvenil was the 53rd staging of the tournament. The competition began on May 18, 2003 and ended on June 29, 2003 with the final.