2004 Indesit ATP Milan Indoor – Singles
was the defending champion but lost in the quarterfinals to Grégory Carraz.
Antony Dupuis won in the final 6–4, 6–7, 7–6 against Mario Ančić.Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
-
Jiří Novák ' - Martin Verkerk '
- Tommy Robredo '
- Feliciano López '
- Ivan Ljubičić '
- Rafael Nadal '
- Sargis Sargsian '
- Dominik Hrbatý '
Draw