Christifideles is a Latin term used to include all those who have been baptized into Christ. In English it may be rendered as Christ's Faithful. In the Roman Catholic church full membership in the Church requires the reception of all three Sacraments of Initiation; Baptism, Confirmation and Eucharist.

Christifideles is also the name of a small organization of Catholics who support the Tridentine Mass, and its' revival. The group is led by Fr. John Perricone, priest in the Archdiocese of Newark.