The 2011 Danmark Rundt was a men's road bicycle race held from 3 to 7 August 2011. It was the 21st edition of the men's stage race to be held, which was established in 1985. Australian rider Simon Gerrans of Team Sky captured the overall title. This was the 2nd Australian Post Danmark Rundt victory.

Danmark Rundt is a Danish multi-day professional road cycling race. It is currently sponsored by the Danish national postal agency, PostNord, and the race is therefore also known as PostNord Danmark Rundt. The race is sometimes called the Tour of Denmark in English language media. The race has been on the UCI ProSeries calendar since 2021, after being cancelled in 2020.