Sir Jeffry Wyatville RA (3 August 1766 – 18 February 1840)[1] was an English architect and garden designer.

Born Jeffry Wyatt into an established dynasty of architects, in 1824 he was allowed by King George IV to change his surname to Wyatville (frequently misspelled Wyattville).

Shortly after the death of his father, Wyatville began his architectural training in his uncle Samuel Wyatt's office.

[3] He remained with Samuel until 1792 when he moved from the Midlands to his uncle James Wyatt's office in Queen Anne Street, London.

[10] His memorial stone is in the north-east corner behind the high altar, and bears this inscription:[11] In the vault beneath are deposited the remains of Sir Jeffry Wyatville R.A. under whose direction the new construction and restoration of the ancient and royal castle of Windsor were carried out during the reigns of George the 4th William the 4th and of Her Majesty Queen Victoria he died February 18th A.D. 1840 in the 74th year of his age.