The Dunnington-Jefferson Baronetcy, of Thorganby Hall in the East Riding of the County of York,[1] is a title in the Baronetage of the United Kingdom.
It was created on 7 July 1958 for Lieutenant-Colonel John Dunnington-Jefferson.
As of 2014 the title is held by his grandson, the third Baronet, who succeeded in that year.
The heir apparent is the present holder's son James Mervyn Rothwell Dunnington-Jefferson (born 2015).