Sir William Strickland, 6th Baronet (18 February 1753 – 8 January 1834) was an 18th-century gentleman farmer and writer from Yorkshire, England. He was the eldest son of Sir George Strickland of York, England, from the ancient English Strickland family of Sizergh. He established his own farm at Welburn in York and, in 1808, succeeded his father as the sixth baronet of Boynton.