There have been two baronetcies created for persons with the surname Alston, both in the Baronetage of England. Both creations are extinct.
The Alston Baronetcy, of Odell in the County of Bedford, was created in the Baronetage of England on 13 June 1642 for Thomas Alston. The third Baronet sat as Member of Parliament for Bedford. The fourth and fifth Baronets both sat as Knight of the Shire for Bedfordshire. The title became extinct on the death of the sixth Baronet in 1791.
The Alston Baronetcy, of Chelsea in the County of London, was created in the Baronetage of England on 20 January 1682 for Joseph Alston. The title became extinct on the death of the eighth Baronet in 1819.