The title Viscount Brackley has been created twice; once in the Peerage of England and once in the Peerage of the United Kingdom. The English title was created in 1616 for Thomas Egerton, 1st Baron Ellesmere; however, he died a year later and the viscountcy merged with the earldom of Bridgewater, which had been meant for Egerton, but he died before he could receive it. Egerton's son, John Egerton, thus became the 1st Earl of Bridgewater.
It was later created in the United Kingdom in 1846 as a subsidiary title of the earldom of Ellesmere, which is held by the Duke of Sutherland.