the followers of George Calixtus, a learned Lutheran divine, and professor at Helmstadt, who died in 1656. Calixtus opposed the opinions of St Augustin on predestination, grace, and free will, and endeavoured to form a union among the various members of the Roman, Lutheran, and Reformed churches; or at least to unite them in the bonds of mutual forbearance and charity.

a sect in Bohemia, derived from the Hussites, about A.D. 1420. They maintained that the use of the cup was essential to the eucharist; and hence their name, from calyx a cup.

The Calixtines were not ranked by Romanists in the list of heretics, since in the main they still adhered to the doctrines of Rome. The reformation they aimed at was comprehended in these four demands: 1, that the cup should be restored to the laity; 2, that criminal clerks should be subject to punishment; 3, that the clergy be reclaimed from the pursuit of wealth and power; 4, that the word of God be preached to the people in purity and simplicity.