'Vanity' was a British pair of deceptions ('Vanity I' and 'Vanity II') within 'Rosebud' and paving the way to 'Viola I' to help fix the reality of Lieutenant General George S. Patton’s fictitious US 1^st Army Group in south-eastern England (July 1944).

Both 'Vanity I' and 'Vanity II' used two fictitious British formations, in the form of the 55^th Division and the naval Force 'M', and each simulated an assault landing exercise by a single brigade in the Hayling island area of southern England.