Thomas Westfield (1573 – 25 June 1644) was an English churchman, Bishop of Bristol and member of the Westminster Assembly.
After serving as curate at St. Mary-le-Bow under Nicholas Felton, he was presented to the rectory of South Somercotes in Lincolnshire in 1600, which he exchanged on 18 December 1605 for the London living of St. Bartholomew, Smithfield, where David Dee had been deprived;[2] Westfield was chaplain to Robert Rich, 1st Earl of Warwick, the patron, and his son Henry.
On 14 November 1631 he was collated archdeacon of St. Albans, and on 17 December 1633 was included in a royal commission to exercise ecclesiastical jurisdiction in England and Wales.
[3] On the outbreak of the First English Civil War he continued to reside in London, but, falling under suspicion of royalist sympathies, he was abused in the streets and sequestered from St. Bartholomew.
The emoluments of his bishopric also were at first retained from him by the Parliament, but on 13 May 1643 they were restored to him by order of the parliamentary Committee of sequestrations out of respect for his character, and he was given a pass to Bristol.