The 2004 Davidoff Swiss Indoors was a tennis tournament played on indoor carpet courts. It was the 35th edition of the event known that year as the Davidoff Swiss Indoors, and was part of the International Series of the 2004 ATP Tour. It took place at the St. Jakobshalle in Basel, Switzerland, from October 24 through October 30, 2004.
Jiří Novák def. David Nalbandian, 5–7, 6–3, 6–4, 1–6, 6–2
Bob Bryan / Mike Bryan def. Lucas Arnold Ker / Mariano Hood, 7–6(11–9), 6–2