William Saywell (1643–1701) was an English churchman and academic, known as a controversialist, archdeacon of Ely, and Master of Jesus College, Cambridge.
After a few months passed at Cranbourne school, he went in 1659 to St John's College, Cambridge, where he was admitted a sizar.
[1] In 1679 Saywell proceeded D.D., and on 8 March in the same year was installed a prebendary of Ely Cathedral.
[1] On 28 November 1672 Saywell was appointed chancellor of the diocese of Chichester, and on 22 January 1681 was collated to the archdeaconry of Ely.
He gave money to Jesus College, for the adornment of the hall and the purchase of advowsons.