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 late Baronet was succeeded by his second cousin once removed, the eleventh and (as of 2007) present holder of the title.
The heir apparent to the baronetcy is Thomas Theodore William Cayley (born 1997), eldest son of the 11th Baronet by his second wife, Cathryn Mary Russell.