The Strickland, later Cholmley, later Strickland-Constable Baronetcy, of Boynton in the County of York, is a title in the Baronetage of England. It was created on 30 July 1641 for the politician William Strickland. He was summoned to Oliver Cromwell's House of Lords as Lord Strickland. The second Baronet sat as Member of Parliament for Beverley during the Commonwealth. The third Baronet was a politician and racehorse owner. The fourth Baronet was also a politician and served as Secretary at War from 1730 to 1735. The seventh Baronet was a barrister and Whig politician. He married Mary, daughter and heiress of Reverend Charles Constable, of Wassand. In 1865 he succeeded to the substantial estates of Nathaniel Cholmley and assumed the same year by Royal permission the surname of Cholmley in lieu of his patronymic for himself and those of his heirs male who may succeeded to the Cholmley estates. However, his son and successor, the eighth Baronet, reverted to the use of the surname of Strickland. The ninth Baronet became a Czechoslovakian citizen and did not use his title. Since the tenth Baronet succeeded to the title in 1938 the baronets have used the surname of Strickland-Constable.
The first baronet's grandfather, William Strickland, acquired the manor of Boynton in 1549. Walter Strickland, younger brother of the first Baronet, was a politician and diplomat. Another member of the family to gain distinction was Henry Strickland (1873–1934), fourth son of the eighth Baronet. He was a Captain in the Royal Navy.
The Boynton estate remained in the family until the 1950s. The stone-built Boynton Hall dates to the 15th century and Sir William Strickland, 4th Baronet was largely responsible for the interior refurbishment and landscapes of the present-day gardens.