The Boynton Baronetcy, of Barmston in the County of York, was a title in the Baronetage of England. It was created on 15 May 1618 for Matthew Boynton, son of Sir Francis Boynton (Sheriff of Yorkshire) of , in the East Riding of Yorkshire. The Boyntons came to Barmston following the marriage of heiress Margaret de la See to Sir Henry Barmston in the 15th century. The first Baronet married Francis Griffith, heiress of an estate at Burton Agnes including Burton Agnes Hall and Burton Agnes Manor House which the second Baronet inherited in 1647. The fifth and sixth Baronets both served as High Sheriff of Yorkshire, in 1750 and 1771 respectively. The eleventh Baronet died without male issue and the Baronetcy passed to his cousin. His estates however passed to his daughter Cicely (d. 1947) whose