The 2005 Tour of the Basque Country was the 45th edition of the Tour of the Basque Country cycle race and was held from 4 April to 8 April 2005.

[2] The race started in Zarautz and finished with an individual time trial in Oñati.

The race was won by Danilo Di Luca of the Liquigas–Bianchi team.

4 April 2005 - Zarautz, 133 km (83 mi) 5 April 2005 - Zarautz to Trapagaran, 166 km (103 mi) 6 April 2005 - Ortuella to Gasteiz, 176 km (109 mi) 7 April 2005 - Gasteiz to Alsasua, 167 km (104 mi) 8 April 2005 - Alsasua to Arantzazu, 93 km (58 mi) 8 April 2005 - Oñati, 9.3 km (5.8 mi) (ITT)