John Ellis (1598/9 – December 1665) was a Welsh Anglican clergyman and religious writer.
He had an income of over £200 per year in 1648, from his positions as rector of Dolgellau and of Towyn and from the prebend of Y Faenol, Caernarvonshire.
[1] In 1641, Ellis published Bellum in idumaeos, a commentary on the Book of Obadiah, dedicating his work to Thomas Tipping of Wheatfield.
Clavis fidei (1642), on the Apostles' Creed, was dedicated to John Lisle, and later translated into English.
After the Restoration, in September 1660, Ellis published Defensio fidei[4] on the Thirty-nine Articles, which was reprinted several times in London and in Amsterdam.