The Duke of Dorset is a title in the British peerage, created in 1801. It is associated with the county of Dorset in England. The title has been held by several notable individuals, including the 1st Duke, who was a prominent politician and served as Lord Lieutenant of Ireland. The current holder of the title is the Duke of Dorset, who is part of the British aristocracy. The dukedom is one of the higher ranks in the peerage system, which includes other titles such as earl and baron. The title is often linked to the historic estates and lands in the region of Dorset.