| Champ: |  Jiří Novák |
| Runner: |  David Nalbandian |
| Score: | 5–7, 6–3, 6–4, 1–6, 6–2 |
| Type: | singles doubles |
| Draw: | 32 (4 / 3) |
| Seeds: | 8 |
| Before Name: | Davidoff Swiss Indoors – Singles |
| After Name: | Davidoff Swiss Indoors – Singles |
| Main Name: | Swiss Indoors |
See main article: 2004 Davidoff Swiss Indoors. Guillermo Coria was the defending champion, but did not participate this year.
Jiří Novák won the tournament, beating David Nalbandian in the final, 5–7, 6–3, 6–4, 1–6, 6–2.