For the Christological term, see Person of Christ

In persona Christi is a Latin phrase meaning “in the person of Christ,” an important concept in Roman Catholicism and, in varying degrees, to other Christian traditions. A priest is In persona christi, because he acts as Jesus and as God. An extended term, In persona Christi capitis, “in the person of Christ the head,” was introduced in the Catechism of the Catholic Church.