The 2005 Danmark Rundt was ridden from 3 August to 7 August 2005.

This edition is remembered for the complete dominance of Ivan Basso, who won 4 of the 6 stages, and the overall classification.

It was the 15th edition of the men's stage race, which was established in 1985.

The total length of the race was 848.8 km.

Ivan Basso's average speed for the race was 42.489 km/h.