Traditionalist Catholics are Roman Catholics who believe that there should be a restoration of many or all of the customs, traditions, liturgical forms, public and private devotions and presentations of teaching of the Church before the Second Vatican Council (1962–65). They are commonly associated with an attachment to the Eucharistic liturgy often called the Tridentine, Traditional Latin or extraordinary form of the Mass.
Traditionalist Catholics generally prefer to be referred to either simply as Catholics or, if a distinction must be made, as "traditional Catholics" (with a lower-case T). However, since Roman Catholics in general consider themselves to be "traditional" in the sense of being faithful to historical Catholic teaching, the term "traditionalist Catholics" is used in this article as a means of clearly distinguishing them from other Roman Catholics.
Traditionalist Catholics may be divided into four broad groups.