Viscount Ridley is a title in the Peerage of the United Kingdom. It was created in 1900 for the Conservative politician Sir Matthew White Ridley, 5th Baronet, Home Secretary from 1895 to 1900. He was made Baron Wensleydale, of Blagdon and Blyth in the County of Northumberland, at the same time, also in the Peerage of the United Kingdom. The latter title was a revival of the barony held by his maternal grandfather James Parke, Baron Wensleydale, whose title became extinct upon his death since none of his sons survived him.