• Abortion, Declaration on: (CDF, 1975)
• Abortion and Euthanasia, On Combatting (John Paul II (1991)
• Ad Apostolorum Principis: On Communism and the Church in China (1958)
• Ad Caeli Reginam: Proclaiming the Queenship of Mary (1954)
• Ad Catholici Sacerdotii: On Catholic Priesthood (1935)
• Ad Extremas: On Seminaries for Native Clergy (1893)
• Ad Gentes Divinitus - Decree on the church's missionary activity (Vatican II)
• Ad Petri Cathedram: On Truth, Unity and Peace (1959)
• Ad Sinarum Gentem: On the Supranationality of the Church (1954)
• Aeterna Dei Sapientia: On St. Leo the Great (1961)
• Aeterni Patris: On Restoring Christian Philosophy (1879)
• AIDS, Letter Concerning: (Joseph Cardinal Ratzinger, 1988)
• Anni Sacri: On Combating Atheistic Progaganda (1950)
• Arcanum: On Christian Marriage (1893)
• Au Millieu Des Sollicitudes: On the Church and State in France (1892)
• Auspicato Concessum: On St. Francis of Assisi (1882)
• Auspicia Quaedam: On Public Prayer for World Peace and Solution of the Problem of Palestine (1948)

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- C -

• Caritate Christi Compulsi: On the Sacred Heart (Pius XI, 1932)
• Catechesi Tradendae - Apostolic Exhortation Catechesis in Our Times (John Paul II, October 1979)
• Catholicae Ecclesiae: On Slavery in the Missions (Leo XIII, 1890)
• Centesimus annus: On the Hundreth Anniversary of Rerum Novarum (John Paul II, 1991)
• Christi Nomen: On the Propagation of Faith and Eastern Churches (Leo XIII, 1894)
• Christifideles Laici - Apostolic Exhortaion " On the Vocation and mission of the Lay faithful in the Church and in the world" (John Paul II, December 1988)
• Communium Interpretes Dolorarum: An Appeal for Prayers for Peace (Pius XII, 1945)
• Concordat Between the Holy See and the German Reich: (1933)
• Constanti Hungarorum: On the Church in Hungary (Leo XIII, 1893)
• Credo of the People of God: (Paul VI, 1968)
• Creteria for Ecumenical and Interreligious Cooperation in Communications (Pontifical Council for Social Communications, October 1989)
• Cum Multa: On Conditions in Spain (Leo XIII, 1882)
• Custodi Di Quella Fede: On Freemasonry (Leo XIII, 1892)

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- D -

• Dall'alto Dell'apostolico Seggio: On Freemasonry in Italy (Leo XIII, 15 October 1890)
• Datis Nuperrime: Condemning the Ruthless Use of Force in Hungary (Pius XII, 5 November 1956)
• Deiparae Virginis Mariae: On the Possibility of Defining the Assumption as a Dogma of the Church (Pius XII, 1 May 1946)
• Deus caritas est (December 25, 2005)
• Diuturnum: On the Origin of Civil Power (Leo XIII, 29 June 1881)
• Dives in Misericordia: On the Mercy of God (John Paul II, 30 November 1980)
• Divini Redemptoris: On Atheistic Communism (Pius XI, 19 Mar 1937)
• Divino Afflante Spiritu: On Promotion of Biblical Studies (Pius XII, 30 September 1943)
• Doctor Mellifluus: On St. Bernard of Clairvaux, the Last of the Fathers (Pius XII, 24 May 1953)
• Dominicae Cenae: On the Mystery and Worship of the Eucharist (John Paul II, 24 February 1980)
• Dominum et Vivificantem: On the Holy Spirit (John Paul II, 18 May 1986)

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- E -

• Ecclesia de Eucharistia (John Paul II, 2003)
• Ecclesia Dei (John Paul II, 1988)
• Ecclesiae Fastos - On Saint Boniface (Pius XII, 1954)
• Ecclesiam Suam - On the Church (Paul VI, 1964)
• Etsi Cunctas - On the Church in Ireland (Leo XIII, 1888)
• Etsi Nos - On Conditions in Italy (Leo XIII, 1882)
• Euthanasia, Declaration on (CDF, 1980)
• Euthanasia and Abortion, On Combatting (By Pope John Paul II, 1991)
• Evangelii Praecones - On Promotion of Catholic Missions (Pius XII, 1951)
• Evangelium Vitae - On the Value and Inviolability of Human Life (John Paul II, 1995)
• Evolution, Address on (John Paul II, 1996)
• Exeunte Lam Anno - On the Right Ordering of Christian Life (Leo XIII, 1888)

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- F -

• Familiaris Consortio - On the Family (John Paul II, 1981)
• Families, Letter to: (John Paul II, 1994)
• Fidei Donum - On the Condition of the Catholic Missions (Pius XII, 1957)
• Fulgens Corona - Proclaiming a Marian Year (Pius XII, 1953)
• Fulgens Radiatur - On Saint Benedict (Pius XII, 1947)

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- G -

• Gaudium et Spes - Pastoral Constitution on the Church in the Modern World (Vatican II)
• Grande Munus - On Saints Cyril and Methodius (Leo XIII, 1880)
• Grata Recordatio - On the Rosary (John XXIII, 1959)
• Haurietis Aquas - On Devotion to the Sacred Heart (Pius XII, 1956)

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-H -

• Homosexual Persons, Letter on the Pastoral Care of: (Congregation for the Doctrine of the Faith, 1986)
• Humanae Vitae - On the Regulation of Birth (Paul VI, 1968)
• Humani Generis - On Evolution (Pius XII, 12 August 1950)
• Humanum Genus - On Freemasonry (Leo XIII, 1884)

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- I -

• Iampridem - On Catholicism in Germany (Leo XIII, 6 January 1886)
• Immortale Dei - On the Christian Constitution of States (Leo XIII, 1885)
• In Ipso - On Episcopal Reunions in Austria (Leo XIII, 1891)
• In Multiplicbus Curis - On Prayers for Peace in Palestine (Pius XII, 24 October 1948)
• In Plurimism - On the Abolition of Slavery (Leo XIII, 1888)
• In Supremo Apostolatus - Apostolic Letter Condemning the Slave Trade (Gregory XVI, 1839)
• Indulgentiarum Doctrina - Apostolic Constitution on Indulgences (Paul VI, 1967)
• Ineffabilis Deus -Encyclical on the Immaculate Conception ( Pius IX, 1854)
• Ingravescentibus Malis - On the Rosary (Pius XI, 29 Sep 1937)
• Ingruentium Malorum - On Reciting the Rosary (Pius XII, 15 September 1951)
• Inscrutabili Dei Consilio - On the Evils of Society (Leo XIII, 1878)
• Inter Insigniores - On women's ordination (CDF, 1976)
• Invicti Athlatae - On Saint Andrew Bobola (Pius XII, 16 May 1957)
• Iucunda Semper - On the Rosary (Leo XIII, 1894)

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- L -

• Laborem Exercens - On Human Work (John Paul II, 1981)
• Laetamur Admodum - On Prayers for Peace for Poland, Hungary and the Middle East (Pius XII, 1956)
• Laetitiae Sanctae - On the Rosary (Leo XIII, 1893)
• Lamentabili Sane - Syllabus of Errors (Holy Office, 1907)
• Le Pelerinage De Lourdes - Warning Against Materialism (Pius XII, 1957)
• Letter to Families: (John Paul II, 1994)
• Liberation Theology, Instruction on: (SCDF, 1984)
• Libertas - On the Nature of Human Liberty (Leo XIII, 1888)
• Licet Multa - On Catholics in Belgium (Leo XIII, 1881)
• Litteras A Vobis - On the Clergy in Brazil (Leo XIII, 1894)
• Luctuosissimi Eventus - On Prayers for the People of Hungary (Pius XII, 1956)

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- M -

• Magnae Dei Matris - On the Rosary (Leo XIII, 1892)
• Magni Nobis - On the Catholic University of America (Leo XIII, 1889)
• Marialis Cultus - On Devotion to the Blessed Virgin Mary (Paul VI, 1974)
• Masonic Associations, Declaration on, (SCDF, 1983)
• Mater Et Magistra - Christianity and Social Progress (John XXIII, 1961)
• Mediator Dei - On the Sacred Liturgy (Pius XII, 1947)
• Meminisse Luvat - On Prayers for the Persecuted Church (Pius XII, 1958)
• Mens Nostra - On Promotion of the Spiritual Exercises (Pius XI, 1929)
• Mirabile Illud - On the Crusade of Prayer for Peace (Pius XII, 1950)
• Miranda Prorsus - On the Communications Field (Pius XII, 1957)
• Miserentissimus Redemptor - On Reparation to the Sacred Heart (Pius XI, 1928)
• Mit Brennender Sorge - On the Church and the German Reich (Pius XI, 1937)
• Mortalium Animos - Encyclical on Religious Unity (Pius XI, 1928)
• Musicae Sacrae - On Sacred Music (Pius XII, 1955)
• Mysterium Fidei - On the Holy Eurcharist (Paul VI, 1965)

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- N -

• Nobilissima Gallorum Gens - On the Religious Question in France (1884)
• Non Abbiamo Bisogno - On Catholic Action in Italy (1931)
• Nostra Aetate - Declaration on Non-Christian Religions (Vatican II)

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- O -

• Octobri Mense - On the Rosary (1891)
• Officio Sanctissimo -: On the Church in Bavaria (1887)
• On Combatting Abortion and Euthanasia (Pope John Paul II, 1991)
• Optatissima Pax - On Public Prayers for Peace (1947)
• Ordinatio Sacerdotalis - Apostolic Letter Reserving Priesthood to Men alone (1994)
• Orientale Lumen - On the Eastern Churches (1995)
• Orientales Omnes Ecclesias - On the Reunion of the Ruthenian Church with Rome (1945)
• Orientalis Ecclesiae - On St. Cyril, Patriarch of Alexandria (1944)
• Orientalium Ecclesiarum - Decree on Eastern Catholic Churches (Vatican II)

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- P -

• Pacem in Terris - Peace on Earth (John XXIII, 1963)
• Paenitentiam Agere -On the Need for Penance (John XXIII, 1962)
• Pastoralis Officii - On the Morality of Dueling (Leo XIII --1891)
• Pergrata - On the Church in Portugal (Leo XIII, 1886)
• Persona Humana - Declaration on Sexual Ethics (CDF, 1975)
• Populorum Progressio - On the Development of Peoples (Paul VI, 1967)
• Princeps Pastorum - On the Missions (John XXIII, 1959)

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- Q -

• Quadragesimo Anno - On Reconstruction of the Social Order (Pius XI, 15 May 1931)
• Quam Aerumnosa - On Italian Immigrants (Leo XIII, 10 December 1888)
• Quamquam Pluries - On Devotion to St. Joseph (Leo XIII, 15 August 1889)
• Quarto Abeunte Saeculo - On the Columbus Quadricentennial (Leo XIII, 1892)
• Quas Primas - On the Feast of Christ the King (Pius XI, 11 Dec 1925)
• Quemadmodum - A Plea for the Care of the World's Destitute Children (Pius XII, 1946)
• Quod Apostolic Muneris - On the Evils of Socialism (1878)
• Quod Anniversarius - On the Occasion of the Sacerdotal Jubilee of Leo (Leo XIII, 11 April 1888)
• Quod Auctoritate - Proclaiming the Extraordinary Jubilee (Leo XIII, 22 December 1885)
• Quod Multum - On the Liberty of the Church (Leo XIII, 22 August 1886)

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- R -

• Rappresentanti in Terra - On Christian Education (Pius XI, 1929)
• Redemptoris Mater - Mother of the Redeemer (John Paul II, 1987)
• Redemptoris Missio - Encyclical Letter "On the Permanent Validity of the Church's Missionary Mandate" (John Paul II, 1990)
• Redemptoris Nostri Cruciatus - On the Holy Places in Palestine (Pius XII, 1949)
• Redemptor Hominis - On the Redeemer of Man (1979)
• Rerum Omnium Perturbationem - On St. Frances de Sales (Pius XI, 1923)

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- S -

• Sacerdotii Nostri Primordia - On Saint John Vianney (John XXIII, 1963)
• Sacra Virginitas - On Consecrated Virginity (1954)
• Saeculo Exeunte Octavo - On the Independence of Portugal (1940)
• Saepe Nos - On Boycotting in Ireland (1888)
• Sancta Dei Civitas - On Mission Societies (1880)
• Sapientia Christiana - On Ecclesiastical Universities and Faculties (1979)
• Sapientiae Christianae - On Christians as Citizens (1890)
• Sempiternus Rex Christus - On the Council of Chalcedon (1951)
• Sertum Laetitiae - On the Start of the Church in the United States (1939)
• Sexual Ethics, Declaration on: (CDF, 1975)
• Sexuality, The Truth and Meaning of Human (PCF, 1996)
• Signum Magnum - On Our Lady (Paul VI, 1967)
• Spectata Fides - On Christian Education (1885)
• Sublimus Dei - On slavery in the New World (1537)
• Summi Maeroris - On Public Prayers for Peace (1950)
• Summi Pontificatus - On the Unity of Human Society (1939)
• Superiore Anno - On the Rosary (1884)
• Supremi Apostolatus Officio - On Devotion of the Rosary (1883)

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- T -

• Television and the Family - (John Paul II, 1994)
• Tertio Mellennio Adveniente - As the Third Millennium Draws Near (John Paul II, 1994)
• The Truth and Meaning of Human Sexuality (PCF, 1996)

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- U -

• Ubi Arcano Dei Consilio - On the Peace of Christ in His Kingdom (Pius XI, 1922)
• Unam Sanctam - (Boniface VIII, 1302)
• Ut Unum Sint - That All May Be One (John Paul II, 25 May 1995)
• Vehementer Nos - On the French Law of Separation (Pius X, 11 Feb 1906)

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- V -

• Veritatis Splendor - Splendor of Truth (John Paul II, 5 October 1993)
• Vi è ben noto - On the Rosary and Public Life (Leo XIII, 1887)
• Vigilanti Cura - Encyclical Letter on Motion Pictures (Pius XI, 1936)
• Vix Pervenit - On Usury and Other Dishonest Profit (Benedict XIV, 1745)