The Cayley Baronetcy, of Brompton in the County of York, is a title in the Baronetage of England. It was created on 26 April 1661 for William Cayley, who had earlier fought as a Royalist in the Civil War. His great-great-great-grandson (the title having descended from father to son), the sixth Baronet, was a pioneer of aeronautical engineering and also represented Scarborough in the House of Commons. The baronetcy descended in the direct line until the death of his great-great-grandson, the tenth Baronet, in 1967. The late Baronet was succeeded by his second cousin once removed, the eleventh and (as of 2007) present holder of the title. He is the great-grandson of Digby Cayley, second son of the seventh Baronet.