The 2005 Volta a Catalunya was the 85th edition of the Volta a Catalunya cycling race, which took place from 16 May to 22 May 2005, in Catalonia, Spain.

The race began in Salou with a team time trial and ended in Barcelona.

Yaroslav Popovych won the first major win of his career.

Twenty-three teams of up to eight riders started the race:[1] 16 May 2005 - Salou, 20.1 km (12.5 mi) (TTT)[3] 17 May 2005 - Cambrils, 186.8 kilometres (116.1 mi)[4] 18 May 2005 - Salou to La Granada, 157.8 km (98.1 mi)[5] 19 May 2005 - Perafort to Pal-Arinsal, 237.7 km (147.7 mi)[6] 20 May 2005 - Sornàs to Ordino-Arcalis, 17 km (11 mi) (ITT)[7] 21 May 2005 - Llívia to Pallejà, 198.7 km (123.5 mi)[8] 22 May 2005 - Pallejà to Barcelona, 113.1 km (70.3 mi)[9]