The 2004 Open de Tenis Comunidad Valenciana was a men's tennis tournament played on outdoor clay courts in Valencia, Spain and was part of the International Series of the 2004 ATP Tour.

It was the tenth edition of the tournament and was held from 12 April until 18 April 2004.

Unseeded Fernando Verdasco won the singles title.

Fernando Verdasco defeated Albert Montañés 7–6(7–5), 6–3 Gastón Etlis / Martín Rodríguez defeated Feliciano López / Marc López 7–5, 7–6(7–5)