Viscount Dunrossil, of Vallaquie and of the Isle of North Uist in the County of Inverness, is a title in the Peerage of the United Kingdom. It was created in 1959 for the Conservative politician William Morrison upon his retirement as Speaker of the House of Commons. His son, the second Viscount, notably served as High Commissioner to Fiji and as Governor of Bermuda. As of 2010 the title is held by the latter's son, the third Viscount, who succeeded in 2000.