Francis Gastrell (10 May 1662 – 24 November 1725) was Bishop of Chester and a writer on deism.

He was a friend of Jonathan Swift, mentioned several times in A Journal to Stella, and chaplain to Robert Harley, 1st Earl of Oxford and Earl Mortimer, when Harley was Speaker of the House of Commons.

[3][4] He was born on 10 May 1662 at Slapton, Northamptonshire and educated at Westminster School and Christ Church, Oxford.

[5] One of a group of Tory High Churchmen, he was on good terms with Francis Atterbury, George Smalridge and Robert Nelson, and one of the Commission of the end of the reign of Queen Anne.

[10] As a diocesan bishop, he is noted for the fine-grained survey he made of every parish, published in the nineteenth century as Notitia Cestriensis.