List of Spanish films of 2004
A list of Spanish-produced and co-produced feature films released in Spain in 2004. The domestic theatrical release date is favoured.
Box office
The five highest-grossing Spanish films in 2004, by domestic box office gross revenue, are as follows:| Rank | Title | Distributor | Admissions | Domestic gross |
| 1 | The Sea Inside | Warner Sogefilms | 3,998,550 | 19,353,426.59 |
| 2 | Isi-Disi, Rough Love | United International Pictures | 1,578,671 | 7,362,347.17 |
| 3 | The Wolf | Filmax | 1,422,719 | 7,070,792.63 |
| 4 | Bad Education | Warner Sogefilms | 1,242,621 | 6,116,247.08 |
| 5 | The Ferpect Crime | Warner Sogefilms | 851,492 | 4,216,832.01 |
| 6 | The Amazing World of Borjamari and Pocholo | Warner Sogefilms | 655,589 | 3,316,634.03 |
| 7 | Say I Do | Columbia TriStar | 606,164 | 2,957,992.11 |
| 8 | Take My Eyes | Alta Classics | 372,561 | 1,699,377.42 |
| 9 | Moon of Avellaneda | Alta Classics | 309,551 | 1,563,270.70 |
| 10 | Hypnos | United International Pictures | 261,721 | 1,291,175.51 |