There have been two baronetcies created for members of the Barnardiston family, both in the Baronetage of England.
The Barnardiston Baronetcy, of Ketton in the County of Suffolk, was created in the Baronetage of England on 7 April 1663 for Thomas Barnardiston, Member of Parliament for Bury St Edmunds and Suffolk and the son of Sir Nathaniel Barnardiston.
The Barnardiston Baronetcy, of Brightwell in the County of Suffolk, was created in the Baronetage of England on 11 May 1663 for Samuel Barnardiston, Member of Parliament for Suffolk, with remainder, firstly, in default of male issue of his own to his brother Nathaniel Barnardiston and the heirs male of his body, and secondly, to his brother Peletiah Barnardiston and the heirs male of his body.
He was the younger brother of the first Baronet of Ketton.
He died childless and was succeeded by his younger brother, Peletiah, the third Baronet.