Duff baronets
There have been three creations of baronets with the surname Duff, all in the Baronetage of [the United Kingdom]. Two of the creations are extinct while one is extant.
Assheton-Smith, later Duff baronets, of Vaynol Park (1911)
Image:Blason family Duff of Vaynoll [Park.svg|thumb|Shield of the Duff baronets, of Vaynol Park]The Assheton-Smith, later Duff Baronetcy, of Vaynol Park in the County of Carnarfon, was created in the Baronetage of the United Kingdom on 1 August 1911 for Charles Garden Assheton-Smith. The title became extinct on the death of the third Baronet in 1980.
- Sir Charles Garden Assheton-Smith, 1st Baronet
- Sir [Robert George Vivian Duff, 2nd Baronet]
- Sir (Charles) Michael Robert Vivian Duff, 3rd Baronet