The 2004 Tour de Suisse was the 68th edition of the Tour de Suisse cycle race and was held from 12 June to 20 June 2004.

The race started in Sursee and finished in Lugano.

[2] The race was won by Jan Ullrich of the T-Mobile team.

Eighteen teams of eight riders started the race:[3] 12 June 2004 - Sursee to Beromünster, 176 km (109 mi) 13 June 2004 - Dürrenroth to Rheinfelden, 169.9 km (105.6 mi) 14 June 2004 - Rheinfelden to Juraparc-Vallorbe, 185 km (115 mi) 15 June 2004 - Vallée de Joux to Bätterkinden, 211.6 km (131.5 mi) 16 June 2004 - Bätterkinden to Adelboden, 161.7 km (100.5 mi) 17 June 2004 - Frutigen to Linthal, 185.4 km (115.2 mi) 18 June 2004 - Linthal to Malbun, 133 km (83 mi) 19 June 2004 - Buchs to Bellinzone, 191.3 km (118.9 mi) 20 June 2004 - Lugano to Lugano, 25.6 km (15.9 mi) (ITT)