| Men's Singles | |
|---|---|
| 2004 Idea Prokom Open | |
| Champion |
|
| Runner-up |
|
| Final score | 6–3, 6–4 |
Guillermo Coria was the defending champion, but did not participate.
Rafael Nadal won the title, defeating José Acasuso 6–3, 6–4 in the final. It was his first career title.