Decree against Communism

Part of a series on
Catholic social teaching
Emblem of the Holy See
Overview
Social teachings of the papacy Distributism Solidarity Subsidiarity Tranquillitas ordinis
Pope Leo XIII Rerum novarum
Pope Pius XI Divini redemptoris Mit brennender Sorge Non abbiamo bisogno Quadragesimo anno
Pope Pius XII Social teachings
Pope John XXIII Mater et magistra Pacem in terris
Second Vatican Council Dignitatis humanae Gaudium et spes
Pope Paul VI Octogesima adveniens Populorum progressio
Pope John Paul II Laborem exercens Sollicitudo rei socialis Centesimus annus Evangelium vitae
Pope Benedict XVI Caritas in veritate
Pope Francis Evangelii gaudium Laudato si' Fratelli tutti
Other figures Gaspard Mermillod René de La Tour du Pin Heinrich Pesch Dorothy Day Óscar Romero Joseph Bernardin Hilaire Belloc G. K. Chesterton
Catholicism portal
v t e

The Decree Against Communism was a 1949 Catholic Church document issued by the Supreme Sacred Congregation of the Holy Office, and approved by Pope Pius XII, which declared Catholics who professed communist doctrine to be excommunicated as apostates from the Christian faith.