Thomas Cartwright (c. 1535 – December 27, 1603) was an English Puritan churchman.
He was born in Hertfordshire, and studied divinity at St John’s College, Cambridge. On the accession of Queen Mary I of England in 1553, he was forced to leave the university, and found occupation as clerk to a counsellor-at-law. On the accession of Queen Elizabeth I, five years later, he resumed his theological studies, and was soon afterwards elected a fellow of St John’s and later of Trinity College, Cambridge.
In 1564 he opposed Thomas Preston in a theological disputation held on the occasion of Elizabeth’s state visit, and in the following year brought attention to the Puritan attitude on church ceremonial and organization. He was popular in Ireland as chaplain to Adam Loftus, Archbishop of Armagh (1565-1567). In 1569, Cartwright was appointed Lady Margaret’s Professor of Divinity at Cambridge; but John Whitgift, on becoming vice-chancellor, deprived him of the post in December 1570, and–as master of Trinity–of his fellowship in September 1571.
This was a result of the use which Cartwright had made of his position; he criticised the hierarchy and constitution of the Church of England, which he compared unfavourably with the primitive Christian organization. So keen was the struggle between him and Whitgift that the chancellor, William Cecil, had to intervene. After his deprivation by Whitgift, Cartwright visited Theodore Beza at Geneva. He returned to England in 1572, and might have become professor of Hebrew at Cambridge but for his expressed sympathy with the notorious “Admonition to the Parliament” by John Field and Thomas Wilcox. To escape arrest he again went abroad, and officiated as clergyman to the English residents at Antwerp and then at Middelburg.
In 1576 he visited and organized the Huguenot churches of the Channel Islands, and after revising the Rhenish version of the New Testament, again settled as pastor at Antwerp, declining the offer of a chair at the University of St Andrews. in 1585 he returned without permission to London, was imprisoned for a short time, and became master of the Earl of Leicester’s hospital at Warwick. In 1590 he was summoned before the court of high commission and imprisoned, and in 1591 he was once more committed to the Fleet prison. He was not treated harshly, and powerful influence soon secured his release. He visited Guernsey (1595-1598), and spent his closing years in honour and prosperity at Warwick, where he died in the same year as the queen.