The 2011 Tour of Britain was the eighth running of the latest incarnation of the Tour of Britain and the 72nd British tour in total. The race started on 11 September in Peebles, Scotland and finished on 18 September in London, England, with the race also visiting Wales for one stage.

The Tour of Britain is a multi-stage cycling race, conducted on British roads, in which participants race across Great Britain to complete the race in the fastest time.