| Name | Post- nominals | Founder | Family | Year founded |
|---|
| A |
|---|
| Adorers of the Blood of Christ | A.S.C. | St. Maria De Mattias | Augustinian | 1834 |
| Antonin Maronite Order | O.A.M. | | Maronites | 1700 |
| Adrian Dominican Sisters (Congregation of the Most Holy Rosary) | O.P. | Mother Camilla Madden | Dominican | 1880 |
| Agnesian Sisters (Congregation of Sisters of St. Agnes) | C.S.A. | Fr. Kaspar Rehrl | | 1858 |
| Alliance of the Hearts of Jesus and Mary | A.S.M. | | | |
| Albertine Brothers | C.F.A.P.U. | St. Albert Chmielowski | Franciscan | 1888 |
| Albertine Sisters | C.S.A.P.U. | St. Albert Chmielowski | Franciscan | 1891 |
| Alexian Brothers | C.F.A. | Fr. Dominicus Brock | Augustinian | 1469 |
| American-Cassinese Benedictine Congregation | O.S.B. | Abbot Boniface Wimmer | Benedictine | 1855 |
| Amigonian Friars | T.C. | José María Amigó y Ferrer | Capuchin | 1889 |
| Antonian Order of Saint Ormizda of the Chaldeans | O.A.O.C. | | Chaldean Catholic | 1808 |
| Angelic Sisters of St. Paul | A.S.S.P. | St. Anthony Maria Zaccaria | Barnabite | 1535 |
| Apostles of the Sacred Heart of Jesus | A.S.C.J. | Blessed Clelia Merloni | | 1894 |
| Armenian Sisters of the Immaculate Conception | R.I.C. | Archbishop Andon Hassounian | | 1847 |
| Assisi Sisters of Mary Immaculate | A.S.M.I. | | Franciscan | 1949 |
| Association of Pauline Cooperators | | | Pauline | |
| Assumptionists (Augustinians of the Assumption) | A.A. | Fr. Emmanuel d'Alzon | Augustinian | 1845 |
| Augustinian Missionary Sisters | A.M.S. | | Augustinian | |
| Augustinian Sisters, Servants of Jesus and Mary | A.S.J.M. | Mother Maria Teresa Spinelli | Augustinian | 1827 |
| Austrian Congregation | O.S.B. | Pope Urban VIII | Benedictine | 1625 |
| Austrian Congregation of Canons Regular | | | Augustinian | |
| Austrian Cistercian Congregation | O.S.B. | | Benedictine | |
| B |
|---|
| Basilian Chouerite Order of Saint John the Baptist | B.C. | Neophytos Nasri | Melkite Greek Catholic | 1696 |
| Bavarian Congregation | O.S.B. | Pope Pius IX | Benedictine | 1684 |
| Benedictines of Mary, Queen of Apostles | O.S.F. | Priestly Fraternity of St. Peter | Benedictine | 1995 |
| Benedictine Oblates of St Scholastica | O.S.B. | | Benedictine | 1984 |
| Benedictine Sisters of Divine Providence | B.D.P. | | Benedictine | |
| Benedictine Sisters of Our Lady of Grace and Compassion | O.S.B. | | Benedictine | |
| Benedictine Sisters of Perpetual Adoration | O.S.B; | Mother Mary Anselma Felber | Benedictine | 1874 |
| Benedictine Sisters of St. Lioba | O.S.B. | | Benedictine | |
| Bethlehemite Brothers | O.F.B. | St. Peter of Saint Joseph de Betancur | | 1653 (restored 1984) |
| Beuronese Congregation | O.S.B. | - Fr. Maurus Wolter
- Fr. Placidus Wolter
| Benedictine | 1863 |
| Bon Secours Sisters | C.B.S. | Archbishop Hyacinthe-Louis de Quélen | | 1824 |
| Bernardine Cistercians of Esquermes | | Mother Hippolyte Lecouvreur | Benedictine | 1827 |
| Bernardine Sisters of St. Francis | | Mother Veronica Grzedowska | Franciscan | 1894 |
| Brazilian Congregation | O.S.B. | | Benedictine | 1827 |
| Brazilian Cistercian Congregation | | | Benedictine | 1961 |
| Brigidine Sisters | C.S.B. | Bishop Daniel Delany | | 1807 |
| Brotherhood of Hope | B.H. | Fr. Philip Merdinger | | 1980 |
| Brothers of the Assumption | | | Augustinian | |
| Brothers of Charity | F.C. | Canon Petrus Joseph Triest | Vincentian | 1807 |
| Brothers of Christian Instruction (De la Mennais Brothers, FIC Brothers) | F.I.C. | Gabriel Deshayes & Jean-Marie de Lamennais | | 1819 |
| Brothers of Christian Instruction of St Gabriel (Gabrielite Brothers) | | St. Louis de Montfort & Fr. Gabriel Deshayes | Montfortian | 1711 |
| Brothers of Divine Providence | F.D.P. | | | |
| Brothers of the Holy Family of Belley | F.S.F. | | | |
| Brothers of the Holy Infancy | | Bishop John Timon | | 1853 |
| Brothers Hospitallers of St. John of God | O.H. | St. John of God | | 1572 |
| Brothers of the Immaculate Conception of Maastricht | F.I.C. | Fr. Bernard Hoecken, Fr. Louis Rutten | | 1867 |
| Brothers of Our Lady Mother of Mercy | C.M.M. | | | |
| Brothers of Mercy of Our Lady of Perpetual Help | F.M.M. | Canon J. B. Cornelius Scheppers | | 1839 |
| Brothers of Our Lady of the Holy Rosary | F.S.R. | | | |
| Brothers of the Sacred Heart | S.C. | Fr. André Coindre | | 1821 |
| Brothers of St. Charles Lwanga (Bannakaroli Brothers) | B.S.C.L | Bishop Henri Streicher, M.Afr. | | 1927 |
| Brothers and Sisters of Penance of St. Francis | | | Franciscan | 1996 |
| Byzantine Discalced Carmelites of Lebanon | | Archbishop Philip Nabaa | Eastern Catholic, Carmelite | 1962 |
| C |
|---|
| Camaldolese | E.C. | St. Romuald | Benedictine | 1025 |
| Camaldolese Congregation of the Order of St. Benedict | O.S.B. Cam. | | Benedictine | |
| Camaldolese Hermits of the Congregation of Monte Corona | Er. Cam. | Fr. Paul Giustiniani | Benedictine | 1525 |
| Canonesses of St. Augustine of the Mercy of Jesus | O.S.A. | | Augustinian | 13th century |
| Canons Regular of the Hospitalary Congregation of Great St. Bernard | | | Augustinian | 11th century |
| Canons Regular of the Lateran | C.R.L. | St. Martin of Tours | Augustinian | 4th century |
| Canons Regular of the New Jerusalem | C.R.N.J. | | Augustinian | 2002 |
| Canons Regular of St. John Cantius | S.J.C. | Fr. C. Frank Phillips, C.R. | Augustinian | 1998 |
| Canons Regular of the Swiss Congregation of Saint-Maurice of Agaune | | Holy Roman Emperor Sigismund | Augustinian | 515 |
| Clerics Regular Minor (Adorno Fathers) | C.R.M. | St. Francis Caracciolo | Augustinian | 1558 |
| Clerics Regular of St. Paul | C.R.S.P. | St. Anthony Maria Zaccaria | Barnabite | 1530 |
| Camillian Fathers (Clerics Regular, Ministers to the Sick) | | St. Camillus de Lellis | Camillian | 1582 |
| Canonesses Regular of the Holy Sepulchre | C.R.S.S. | | | |
| Canonesses Regular of St. Augustine | C.R.O.S.A. | | Augustinian | |
| Canons of Jesus the Lord (Russia) | C.J.D. | | | |
| Canons Regular of the Immaculate Conception | C.R.I.C. | Adrien Gréa | Augustinian | 1871 |
| Canons Regular of St. Victor | | | Augustinian | 1968 |
| Canossian Fathers (Canossian Sons of Charity) | F.d.C.C. | St. Magdalene of Canossa, Fr. Francesco Luzzi | Canossian | 1831 |
| Canossian Sisters (Canossian Daughters of Charity, Servants of the Poor) | F.D.D.C. | St. Magdalene of Canossa | Canossian | 1808 |
| Capuchin Poor Clares | | Ven. Maria Laurentia Longo | Franciscan | 1538 |
| Capuchin Sisters of Nazareth | C.N. | | Franciscan | |
| Carmelites (Order of the Brothers of the Blessed Virgin Mary of Mount Carmel) | O. Carm. | St. Berthold of Calabria | Carmelite | 12th century |
| Carmelite Daughters of the Divine Heart of Jesus | D.J.C. | Mother Anna Maria Tauscher | Carmelite | 1891 |
| Carmelite Sisters of the Sacred Hearts | | | Carmelite | 1987 |
| Carmelites of Mary Immaculate | C.M.I. | - Fr. Palackal Thoma
- Fr. Porukara Thoma Kathanar
- Fr. Kuriakose Elias Chavara
| Carmelite | 1831 |
| Carmelites of St. Elijah | C.S.E. | | Carmelite | 1986 |
| Carmelite Sisters of Charity | C.C.V. or C. a Ch. | Joaquina Vedruna de Mas | Carmelite | 1826 |
| Carmelite Sisters for the Aged and Infirm | O. Carm. | Mother Mary Angeline Teresa McCrory | Carmelite | 1929 |
| Carmelite Sisters of the Most Sacred Heart of Los Angeles | | Ven. Maria Luisa Josefa | Carmelite | 1904 |
| Carthusian Order (Order of St. Bruno) | O. Cart. | St. Bruno of Cologne | Carthusian | 1084 |
| Casamari Cistercian Congregation | | | Benedictine | 1929 |
| Castilian Cistercian Congregation | | | Benedictine | 1425 |
| Christian Doctrine Fathers (Doctrinaries) | D.C. | Blessed Fr. César de Bus | | 1592 |
| CICM Missionaries (Congregation of the Immaculate Heart of Mary) | C.I.C.M. | Fr. Theophiel Verbist | | 1862 |
| Cistercian Congregation of the Crown of Aragon | | | Benedictine | 1616 |
| Cistercian Congregation of the Holy Family | | | Benedictine | 1964 |
| Cistercian Congregation of the Immaculate Conception | | | Benedictine | 1867 |
| Cistercian Congregation of the Immaculate Heart of Mary | | | Benedictine | 1923 |
| Cistercian Congregation of Mary Mediatrix | | | Benedictine | 1846 |
| Cistercian Congregation of Mary, Queen of the World | | | Benedictine | 1953 |
| Cistercian Congregation of St. Bernard in Italy | | | Benedictine | 1497 |
| Cistercian Order | O.Cist. | St. Robert of Molesme | Benedictine | 1098 |
| Cistercian Order of the Holy Cross | O.C.C.O. | | Benedictine | |
| Claretians (Congregation of Missionaries, Sons of the Immaculate Heart of the Blessed Virgin Mary) | C.M.F. | St. Anthony Mary Claret | Claretian | 1849 |
| Claretian Sisters (Religious of Mary Immaculate Claretian Missionary Sisters) | C.S. | St. Anthony Mary Claret | Claretian | 1855 |
| Clarist Franciscan Missionaries of the Most Blessed Sacrament (India) | C.F.M.S.S. | | Franciscan | |
| Colettine Poor Clares | P.C.C. | St. Colette of Corbie | Franciscan | 1211 |
| Columbans (Missionary Society of St. Columban) | | | | 1916 |
| Comboni Missionaries | M.C.C.I. | St. Daniel Comboni | | 1867 |
| Community of Betania | | Maria Esperanza | | 1979 |
| Community of Jesus | | - Cay Andersen
- Judy Sorensen
| Foucauldian | 1968 |
| Community of St. John | C.S.J. | Fr. Marie-Dominique Philippe | | 1975 |
| Companions of the Cross | C.C. | Fr. Robert Beddard | | 1988 |
| Company of Mary Our Lady | O.D.N. | St. Jeanne de Lestonnac | | 1607 |
| Congregation of the Annunciation | B.M.V. | Abbot Columba Marmion | Benedictine | 1920 |
| Congregation of the Blessed Sacrament | S.S.S. | St. Peter Julian Eymard | Eymardian | 1659 |
| Congregation of Christian Brothers (Irish Christian Brothers) | C.F.C. | Blessed Edmund Ignatius Rice | | 1802 |
| Congregation of Christian Retreat | | Fr. Antoine-Sylvestre Receveur | | 1789 |
| Congregation of Christian Workers of St. Joseph Calasanz | C.Op. | | | 1889 |
| Congregation of Clerics Regular (Theatines) | C.R. | St. Cajetan | | 1524 |
| Congregation of the Disciples of the Lord | C.D.D. | Bishop Celso Costantini | | 1931 |
| Congregation of Divine Providence (Sisters of Divine Providence) | C.D.P. | Blessed Jean-Martin Moye | Divine Providence | 1827 |
| Congregation of Divine Providence (Germany) | | Bishop Wilhelm Emmanuel von Ketteler | | 1851 |
| Congregation of the Divine Spirit | C.D.S. | Archbishop John Mark Gannon | | 1956 |
| Congregation of Holy Cross (Holy Cross Fathers) | C.S.C. | Blessed Basil Moreau | Holy Cross | 1837 |
| Congregation of Holy Family, India | C.H.F. | Blessed Mariam Thresia | | 1914 |
| Congregation of the Holy Spirit (Holy Ghost Fathers, Spiritans) | C.S.Sp. | Fr. Claude Poullart des Places | | 1703 |
| Congregation of Jesus and Mary (Eudists) | | Fr. John Eudes | | 1643 |
| Congregation of the Lebanese Maronite Missionaries | M.L. | | | 1865 |
| Congregation of the Missionary Sisters of Saint Charles Borromeo (Scalabrinian Sisters) | C.S. | Blessed Giovanni Battista Scalabrini | | 1895 |
| Congregation of the Mother of Carmel | C.M.C. | St. Kuriakose Elias Chavara | Carmelite | 1866 |
| Congregation of the Mother Co-Redemptrix (Vietnam) | C.M.C. | Bishop Dominic Maria Trần Đình Thủ | | 1909 |
| Congregation of Notre Dame of Montreal | C.N.D. | St. Marguerite Bourgeoys | | 1653 |
| Congregation of the Oblates to Divine Love | | Mother Margherita Diomira Crispi | | |
| Congregation of Our Lady of Calvary | | François Leclerc du Tremblay, OFM Cap | Benedictine | 1617 |
| Congregation of Our Lady of Fidelity | N.D.F. | Mother Henriette le Forestier d'Osseville | | 1831 |
| Congregation of Our Lady of the Missions | R.N.D.M. | Mother Adèle Euphrasie Barbier | Augustinian | 1861 |
| Congregation of Our Lady of Pity | C.L.P. | | | |
| Congregation of Our Lady of Sion | N.D.S. | | Congregation of Our Lady of Sion | 1852 |
| Congregation of the Sacred Hearts of Jesus and Mary | SS.CC. | Fr. Pierre Coudrin | | 1800 |
| Congregation of the Sisters of Nazareth | C.S.N. | Victoire Larmenier | | 1857 |
| Congregation of the Sisters of Our Lady of Mercy | O.L.M. | Mother Teresa Eva Potocka | | 1862 |
| Congregation of the Sisters of the Resurrection | C.R. | | | 1891 |
| Congregation of St. Basil | C.S.B. | Fr. Joseph Lapierre | Basilian | 1822 |
| Congregation of St. John | F.J. | | | |
| Congregation of St. Michael the Archangel | C.S.M.A. | | | |
| Congregation of St. Thérèse of Lisieux | C.S.T. | Metropolitan Mar Augustine Kandathil | | |
| Congregation of the Sisters of Mercy | R.S.M. | | Sisters of Mercy | 1991 |
| Congregation of the Sisters of Our Lady of Mercy (Divine Mercy Sisters) | O.L.M. | Mother Teresa Eva Potocka | | 1862 |
| Congregation of Windesheim | | | Augustinian | 1386 |
| Cono-Sur Congregation | O.S.B. | | Benedictine | 1976 |
| Consolata Missionaries | I.M.C. | Giuseppe Allamano | | 1901 |
| Crosiers (Canons Regular of the Order of the Holy Cross) | O.S.C. | Theodorus de Cellis | | Late 12th century |
| Crusade of the Holy Spirit | C.H.S. | | | |
| D |
|---|
| Daughters of Charity of St. Vincent de Paul | D.C. | | Vincentian-Setonian | 1633 |
| Daughters of the Church (India) | | | | |
| Daughters of the Cross of Liege | F.C. | | | |
| Daughters of Divine Charity | F.D.C. | Mother Franziska Lechner | | 1868 |
| Daughters of Divine Love | D.D.L. | Bishop Godfrey Mary Paul Okoye | | 1969 |
| Daughters of Divine Zeal | F.D.Z. | St. Annibale Maria di Francia | | 1887 |
| Daughters of the Heart of Mary | D.H.M. | | | |
| Daughters of the Holy Cross, Sisters of St. Andrew | | | | 1807 |
| Daughters of the Holy Spirit | | Ven. Félix de Jesús Rougier | Felixian | 1924 |
| Daughters of the Holy Spirit (White Sisters) | D.H.S. | - Sr. Marie Belavenne
- Se. Renée Burel
| | 1706 |
| Daughters of the Immaculate Heart of Mary | D.I.H.M. | | | |
| Daughters of Jesus (France) | | Abbot Pierre Noury | | 1834 |
| Daughters of Jesus (Spain) | F.I. | St. Saint Candida Maria of Jesus | | 1871 |
| Daughters of Mary | D.M. | Msgr. Joseph Kuzhinjalil | | 1938 |
| Daughters of Mary of the Immaculate Conception | D.M. | Msgr. Lucian Bojnowski | | 1904 |
| Daughters of Mary, Mother of Healing Love | D.M.M.L. | Mother Paul Marie | | 2003 |
| Daughters of Mary, Mother of Our Savior | | Bishop Clarence Kelly | | 1984 |
| Daughters of the Oratory | F.d.O. | Vincenzo Grossi | | 1885 |
| Daughters of Our Lady of Compassion | D.O.L.C. | Mother Suzanne Aubert | | 1892 |
| Daughters of Our Lady of Mercy | | St. Maria Giuseppa Rossello | | 1837 |
| Daughters of Our Lady of the Garden | O.L.G. | St. Anthony Gianelli | Gianelli | 1829 |
| Daughters of the Sacred Heart of Jesus | F.S.C.G. | Ignazia Verzeri | | 1831 |
| Daughters of St. Ann | D.S.A. | | | |
| Daughters of St. Anne of Calcutta | D.S.A. | | | |
| Daughters of St. Anne of Ranchi | D.S.A. | | | |
| Daughters of St. Camillus | D.S.C. | | Camillian | |
| Daughters of St. Francis of Assisi | D.S.F.A. | | Franciscan | 1894 |
| Daughters of St. Francis de Sales | D.S.F.S. | | Salesian | |
| Daughters of Saint Mary of Providence | F.S.M.P. | Dina Bosatta, Luigi Guanella | | 1872 |
| Daughters of St. Paul (Pauline Sisters) | F.S.P. | | Pauline | 1915 |
| Daughters of St. Thomas | D.S.T. | | | |
| Daughters of Wisdom | D.W. | | Montfortian | 1707 |
| De La Salle Brothers | F.S.C. | St. Jean-Baptiste de La Salle | Lasallian | 1680 |
| Deen Bandhu Samaj (India) | D.B.S. | | | |
| Discalced Augustinians | O.A.D. | | Augustinian | 1592 |
| Discalced Carmelites (Barefoot Carmelites) | O.C.D. | | Carmelite | 1568 |
| Discalced Mercedarians | O.M.D. | Fr. Juan Bautista González Alcázar, O. de M. | Mercedarian | 1603 |
| Disciples of the Lord Jesus Christ | | | | |
| Dominicans (Order of Preachers) | O.P. | St. Dominic | Dominican | 13th century |
| Dominican Missionaries for the Deaf Apostolate | O.P. Miss. | | Dominican | 2004 |
| Dominican Missionary Sisters of St. Elizabeth | D.M.S.E. | | Dominican | |
| Dominican Nuns of the Perpetual Rosary | O.P. | Mother Domien-Marie Saintourens | Dominican | 1880 |
| Dominican Sisters of the Annunciation of the Blessed Virgin | O.P. | St. Francisco Coll Guitart | Dominican | 1856 |
| Dominican Sisters of Blauvelt (Congregation of St. Dominic of Blauvelt) | O.P. | Mother Mary Sammon | Dominican | 1890 |
| Dominican Sisters of Hawthorne | O.P. | Mother Rose Hawthorne Lathrop | Dominican | 1900 |
| Dominican Sisters of Hope | O.P. | | Dominican | 1995 |
| Dominican Sisters of Grand Rapids (Dominican Congregation of Our Lady of the Sacred Heart) | O.P. | Bishop Caspar Henry Borgess | Dominican | 1877 |
| Dominican Sisters of the Immaculate Conception | O.P. | Mother Maria Bialecka | Dominican | 1861 |
| Dominican Sisters of Mary, Mother of the Eucharist | O.P. | Mother Mary Assumpta Long | Dominican | 1997 |
| Dominican Sisters of the Most Holy Name | O.P. | | Dominican | 1850 |
| Dominican Sisters of Peace | O.P. | | Dominican | 2009 |
| Dominican Sisters of St. Cecilia | O.P. | Bishop James Whelan | Dominican | 1860 |
| Dominican Sisters of San Rafael (Dominican Congregation of the Most Holy Name of Jesus) | O.P. | | Dominican | 1850 |
| Dominican Sisters of Sparkill (Dominican Congregation of Our Lady of the Rosary) | O.S.D. | Mother Catherine M. Antoninus | Dominican | 1876 |
| Dominican Sisters of the Queen of the Rosary | O.P. | | Dominican | 1888 |
| E |
|---|
| Emmanuel Community | Comm l'Emm | | | 1976 |
| English Benedictine Congregation | E.B.C. | | Benedictine | 1607–1633 |
| Elim Communities | | Wilfredo Nakar Luli Nakar | Charismatic, Franciscan | 1980 |
| F |
|---|
| Faithful Companions of Jesus Sisters | F.C.J. | Ven. Marie-Madeleine d'Houët | | 1820 |
| Fathers of Mercy | C.P.M. | Fr. Jean-Baptiste Rauzan | | 1808 |
| Federation of the Sisters of Mercy | R.S.M. | | Sisters of Mercy | 1973 |
| Congregation of the Sisters of St. Felix of Cantalice (Felician Sisters) | C.S.S.F. | Sophia Truszkowska | | 1855 |
| Filippini Sisters (Religious Teachers Filippini, Sisters of St. Lucy Filippini) | M.P.F. | | | 1692 |
| Franciscan Apostolic Sisters | F.A.S. | Fr. Gerardo Filippeto | Franciscan | 1954 |
| Franciscan Brothers of Brooklyn | O.S.F. | Bishop John Loughlin | Franciscan | 1858 |
| Franciscan Brothers of the Eucharist | F.B.E. | | Franciscan | 2002 |
| Franciscan Brothers of the Holy Cross | F.F.S.C. | James Wirth | Franciscan | 1862 |
| Franciscan Brothers of Peace | F.B.P. | Br. Michael Gaworski | Franciscan | 1982 |
| Franciscan Clarist Congregation | | | Franciscan | 19th century |
| Franciscan Friars of the Immaculate | F.I. | - Fr. Stefano Maria Manelli
- Fr. Gabriel Maria Pellettieri
| Franciscan | 1970 |
| Franciscan Friars of the Renewal | C.F.R. | Fr. Benedict Groeschel | Franciscan | 1987 |
| Franciscan Handmaids of Mary | | Ignatius Lissner | Franciscan | 1915 |
| Franciscan Hospitaller Sisters of the Immaculate Conception | F.H.I.C. | Mother Maria Clara | Franciscan | 1871 |
| Franciscan Minims of the Perpetual Help of Mary | F.M. | | Franciscan | 1942 |
| Franciscan Missionaries of Christ the King | F.M.C.K. | Mother Bridget Sequeira | Franciscan | 1937 |
| Franciscan Missionaries of the Divine Motherhood | F.M.D.M. | Mother Colette | Franciscan | 1887 |
| Franciscan Missionaries of the Eternal Word | M.F.V.A. | | Franciscan | 1987 |
| Franciscan Missionaries of Mary | F.M.M. | Helene de Chappotin | Franciscan | 1877 |
| Franciscan Missionaries of St. Joseph | F.M.S.J. | | Franciscan | |
| Franciscan Missionary Sisters for Africa | F.M.S.A. | | Franciscan | |
| Franciscan Missionary Sisters of the Immaculate Heart of Mary | O.S.F. | Blessed Mary Catherine Troiani | Franciscan | 1868 |
| Franciscan Missionary Sisters of the Infant Jesus | | | Franciscan | 1879 |
| Franciscan Missionary Sisters of Littlehampton | F.M.S.L. | | Franciscan | |
| Franciscan Nardini Sisters of the Holy Family (Nardini Sisters, Mallersdorfer Sisters) | F.P.M. | Blessed Paul Joseph Nardini | Franciscan | 1855 |
| Franciscan Servants of Jesus | | | Franciscan | 1997 |
| Franciscan Servants of the Sacred Heart | S.S.C. | | Franciscan | |
| Franciscan Sisters of Allegany | O.S.F. | Fr. Pamfilo of Magliano | Franciscan | 1859 |
| Franciscan Sisters of Christ the King | | Fr. Eugene N. Heidt | Franciscan | 2000 |
| Franciscan Sisters of Christian Charity | O.S.F. | Ambrose Oschwald | Franciscan | 1869 |
| Franciscan Sisters of the Eucharist | F.S.E. | | Franciscan | 1973 |
| Franciscan Sisters of the Eucharistic Heart of Jesus | F.E.H.J. | | Franciscan | |
| Franciscan Sisters of the Family of Mary | | Zygmunt Szczęsny Feliński | Franciscan | 1857 |
| Franciscan Sisters of the Immaculate Conception | F.S.I.C. | Refugio Morales | Franciscan | 1874 |
| Franciscan Sisters of the Immaculate Conception | F.I.C. | | Franciscan | |
| Franciscan Sisters of Mary | F.S.M. | | Franciscan | 1987 |
| Franciscan Sisters of Mary Immaculate | | Blessed Mother Caritas Brader | Franciscan | 1893 |
| Franciscan Sisters of Mill Hill | O.S.F. | | Franciscan | |
| Franciscan Sisters of Penance of the Sorrowful Mother | T.O.R. | Bishop Albert Henry Ottenweller | Franciscan | 1988 |
| Franciscan Sisters of Perpetual Adoration | F.S.P.A. | | Franciscan | 1849 |
| Franciscan Sisters of the Sacred Heart | F.S.S.H. | Fr. Wilhelm Berger | Franciscan | 1866 |
| Franciscan Sisters of St. Aloysius Gonzaga | F.S.A.G. | | Franciscan | |
| Franciscan Sisters of St. Clare | F.S.C. | | Franciscan | |
| Francisca Sisters of St. Elizabeth | O.S.E. | | Franciscan | |
| Franciscan Sisters of St. Joseph | F.S.S.J. | | Franciscan | |
| Franciscan Sisters of St. Mary of the Angels | F.S.M.A. | | Franciscan | |
| Franciscan Sisters of Siessen | O.S.F. | | Franciscan | |
| Fransalians (Missionaries of St. Francis de Sales) | M.S.F.S. | Fr. Peter Mermier | De Sales | 1838 |
| Fraternity of Charles de Foucauld | | | Foucauldian | 1992 |
| Fraternity Jesus Caritas | | | Foucauldian | 1952 |
| Friars of St. Francis | F.S.F. | | Franciscan | 1993 |
| Order of Friars Minor Capuchin | O.F.M. Cap. | Fr. Matteo da Bascio | Franciscan | 1525 |
| Order of Friars Minor Conventual (Grey Friars) | O.F.M. Conv. | St. Francis of Assisi | Franciscan | 1209 |
| Order of St. Clare (Poor Clares) | O.S.C. | | Franciscan | 1212 |
| Poor Clares of Perpetual Adoration | P.C.P.A. | Marie Claire Bouillevaux | Franciscan | 1854 |
| School Sisters of St. Francis | S.S.S.F. | Sr. Mary Alexia | Franciscan | 1874 |
| Sisters of St. Francis of the Martyr St. George | F.S.G.M. | - Fr. John Gerard Dall
- Mother M. Anselma Bopp
| Franciscan | 1869 |
| Sisters of St. Joseph of the Third Order of St. Francis | S.S.J.-T.O.S.F. | 46 members of the School Sisters of St. Francis | Franciscan | 1901 |
| Tertiary Sisters of St. Francis | | Mother Maria Heuber | Franciscan | 1700 |
| G |
|---|
| Glenmary Home Missioners | | Fr. William Howard Bishop | Glenmary | 1939 |
| Glenmary Sisters | | Fr. William Howard Bishop | Glenmary | 1941 |
| Good Shepherd Sisters (Sisters of Jesus the Good Shepherd, Pastorelles) | | Blessed James Alberione | Pauline | 1938 |
| Grey Nuns (Sisters of Charity of Montreal) | S.G.M. | St. Marguerite d'Youville | Vincentian-Setonian | 1738 |
| Grey Nuns of the Sacred Heart | G.N.S.H. | | Vincentian-Setonian | 1921 |
| Grey Sisters of the Immaculate Conception | G.S.I.C. | 77 Sisters of Charity of Ottawa | Vincentian-Setonian | 1926 |
| Groupe Charles de Foucauld | | | Foucaldian | 1923 |
| Guadalupan Missionaries of the Holy Spirit | | Ven. Félix de Jesús Rougier | Felixian | 1930 |
| H |
|---|
| Handmaids of the Blessed Sacrament and of Charity | A.A.S.C. | Saint María Micaela of the Blessed Sacrament | | 1950 |
| Handmaids of Charity | A.D.C. | Maria Crocifissa di Rosa | | 1840 |
| Handmaids of the Holy Child Jesus | H.H.C.J. | | | |
| Handmaids of the Precious Blood | H.P.B. | | | 1947 |
| Handmaids of the Sacred Heart of Jesus | A.C.J | Raphaela Maria | | 1877 |
| Handmaids of the Sacred Heart of Jesus, Mary and Joseph | | | | 1978 |
| Helpers of Mount Rosary (India) | H.M.R. | | | |
| Heralds of the Good News (India) | H.H.N. | | | |
| Heralds of the Gospel | E.P. | Msgr. João Scognamiglio Clá Dias | Heralds of the Gospel | 1970 |
| Hermits of the Most Blessed Virgin Mary of Mount Carmel | O. Carm. | | Carmelite | 12th century |
| Hermits of St. Augustine | E.O.S.A. | | Augustinian | |
| Hermits of St. Bruno | H.S.B. | | Carthusian | 2001 |
| Hieronymites (Order of St. Jerome) | O.S.H. | | Augustinian | 14th century |
| Holy Family Sisters of Spoleto (India) | H.F.S. | | | |
| Holy Spirit Adoration Sisters (Pink Nuns) | S.Sp.S.A.P. | St. Arnold Janssen | | 1896 |
| Hospitaller Sisters of the Sacred Heart of Jesus | H.S.C. | | | |
| I |
|---|
| The Indian Missionary Society | I.M.S. | Fr. Gaspar A Pinto | | 1941 |
| Idente Missionaries (Institute of Christ the Redeemer) | M.Id | Fernando Rielo | | 1959 |
| Institute of Christ the King Sovereign Priest | I.C.R.S.S. | - Msgr. Gilles Wach
- Fr. Philippe Mora
| | 1990 |
| Institute of the Daughters of Mary, Sisters of the Pious Schools | Sch. P. | St. Paula Montel Fornés | | 1847 |
| Institut des Frères Serviteurs | | | Foucauldian | 1979 |
| Institute of the Holy Family | | Blessed James Alberione | Pauline | 1960 |
| Institute of the Incarnate Word | I.V.E. | Fr. Carlos Miguel Buela | Institute of the Incarnate Word | 1984 |
| Institute of Jesus the Priest | | Blessed James Alberione | Pauline | 1959 |
| Institute of Mary of the Annunciation | | Blessed James Alberione | Pauline | 1958 |
| Institute of Our Lady of Mercy (Great Britain) | R.S.M. | | Sisters of Mercy | 1983 |
| Istituto del Prado | Ist. del Prado | Antoine Chevrier | | 1856 |
| Institute of St. Gabriel the Archangel | | Blessed James Alberione | Pauline | 1958 |
| J |
|---|
| Jesuits (Society of Jesus) | S.J. | St. Ignatius of Loyola | | 1540 |
| Josephite Fathers (St. Joseph's Society of the Sacred Heart) | S.S.J. | Fr. Charles Uncle | Josephite | 1871 |
| Josephite Sisters (Redemptorists Sisters of St. Joseph) | J.SS.R. | | Josephite | |
| L |
|---|
| Ladies of Bethany | L.B. | | | 1919 |
| Legion of Christ | L.C. | Fr. Marcial Maciel | Regnum Christi | 1941 |
| Little Brothers of the Good Shepherd | B.G.S. | Br. Mathias Barrett | | 1951 |
| Little Brothers of the Gospel | | Fr. René Voillaume | Foucauldian | 1956 |
| Little Brothers of Jesus | L.B.J. | | Foucauldian | 1933 |
| Little Brothers of Jesus of the Most Blessed Sacrament | | | Foucauldian | |
| Little Brothers of Nazareth | L.B.N. | | | |
| Little Servants of the Sacred Heart of Jesus for the Sick Poor | P.S.S.C. | Giovanna Francesca Michelotti | | 1874 |
| Little Sisters of Jesus | | Madeleine Hutin | Foucauldian | 1939 |
| Little Sisters of the Assumption | L.S.A. | Fr. Etienne Pernet | Augustinian | 1865 |
| Little Sisters of the Gospel | | Fr. René Voillaume | Foucauldian | 1963 |
| Little Sisters of the Incarnation | | | | |
| Little Sisters of the Mother of Sorrows | | Clelia Barbieri | | 1868 |
| Little Sisters of the Poor | L.S.P. | St. Jeanne Jugan | | 1839 |
| Little Sisters of the Poor (India) | P.S.D.P. | | | |
| Little Sisters of the Abandoned Elderly | H.A.D. | Teresa of Jesus Jornet | | 1872 |
| Loreto Sisters (Institute of the Blessed Virgin Mary) | I.B.V.M. | Ven. Mary Ward | | 1609 |
| Lovers of the Holy Cross of Bac Ha | L.H.C.B.H. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Binh Cang Nha Trang | L.H.C.B.C.N.T. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Cai Mon | L.H.C.C.M. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Go Vap | L.H.C.G.V. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Huong-Phuong | L.H.C.H.P. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Los Angeles | L.H.C. | Bishop William R. Johnson | Lovers of the Holy Cross | 1978 |
| Lovers of the Holy Cross of Nha Trang | L.H.C.N.T. | Bishop Marcel Piquet | Lovers of the Holy Cross | 1955 |
| Lovers of the Holy Cross of Phan Thien | L.H.C.P.T. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Phát Diệm | L.H.C.P.D. | Bishop Alexandre Marcou Thành | Lovers of the Holy Cross | 1902 |
| Lovers of the Holy Cross of Tan Viet | L.H.C.T.V. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Thanh Hoa | L.H.C.T.H. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Thu Thiem | L.H.C.T.T. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross (Vietnam) | T.H.C.S. | Bishop Pierre Lambert de la Motte | Lovers of the Holy Cross | 1670 |
| M |
|---|
| Malabar Missionary Brothers (India) | M.M.B. | | | |
| Marian Fathers of the Immaculate Conception of the Blessed Virgin Mary | M.I.C. | St. Stanislaus Papczyński | | 1673 |
| Marian Sisters of the Diocese of Lincoln (Marian Sisters) | M.S. | | | 1952 |
| Marianists (Society of Mary) | S.M. | | Marianist | |
| Marianist Lay Communities | M.L.C. | | Marianist | |
| Marianist Sisters | F.M.I. | | Marianist | 1816 |
| Marianites of Holy Cross | M.S.C. | Blessed Basil Moreau | Holy Cross | 1841 |
| Marist Brothers | F.M.S. | St. Marcellin Champagnat | Marist | 1817 |
| Marist Sisters | S.M. | | Marist | 1823 |
| Marist Fathers (Society of Mary) | S.M. | Ven. Jean-Claude Colin | Marist | 1816 |
| Maryknoll Fathers (Catholic Foreign Mission Society of America) | M.M. | | Maryknoll | 1911 |
| Maryknoll Lay Missioners | M.K.L.M. | | Maryknoll | 1975 |
| Maryknoll Sisters of St. Dominic | M.M. | Mother Mary Joseph Rogers | Maryknoll | 1912 |
| Medical Missionaries of Mary | M.M.M. | Mary Martin | Benedictine | 1937 |
| Medical Mission Sisters | S.C.M.M. | Dr. Anna Dengel | | 1925 |
| Medical Sisters of St. Francis of Assisi (India) | O.S.F. | | Franciscan | |
| Mehrerau Cistercian Congregation | | | Benedictine | 1624 |
| Mekhitarists | C.M.V. | Abbot Mekhitar of Sebaste | Benedictine | 1717 |
| Mercedarians (Order of the Blessed Virgin Mary of Mercy) | | St. Peter Nolasco | Mercedarian | 1218 |
| Mercedarian Missionaries of Berríz | | Mother Margarita Lopez de Maturana | Mercedarian | 1926 |
| Mercedarian Sisters of the Blessed Sacrament | H.M.S.S. | Mother Maria del Refugio | Mercedarian | 1946 |
| Messengers of Mother Mary | M.M.M. | | | |
| Miles Christi | M.C. | Fr. Roberto Juan Yannuzzi | | 1994 |
| Military and Hospitaller Order of St. Lazarus of Jerusalem | O.S.L.J. | Crusaders of the Latin Kingdom of Jerusalem | | 1119 |
| Militia Immaculatae (Knights of the Immaculata) | M.I. | St. Maximillian Kolbe | | 1917 |
| Mill Hill Missionaries (St. Joseph's Missionary Society of Mill Hill) | M.H.M. | Fr. Herbert Alfred Vaughan | | 1866 |
| Minims | O.M. | St. Francis of Paola | Minim | 1435 |
| Minim Nuns (Federation of the Minim Nuns) | | | Minim | |
| Mission Helpers of The Sacred Heart | M.H.S.H. | | | 1890 |
| Missionaries of Charity | M.C. | St. Mother Teresa of Calcutta | Missionaries of Charity | 1950 |
| Missionaries of Charity Brothers | M.C. | | Missionaries of Charity | 1963 |
| Missionaries of Charity Contemplative Fathers and Brothers | M.C. | | Missionaries of Charity | 1979 |
| Missionaries of Charity Contemplative Sisters | M.C. | | Missionaries of Charity | 1963 |
| Missionaries of Charity Fathers | M.C. | | Missionaries of Charity | 1984 |
| Missionary Catechists of Divine Providence | M.C.D.P. | Mother Mary Benitia Vermeersch | Divine Providence | 1930 |
| Missionary Congregation of the Blessed Sacrament | M.C.B.S. | - Fr. Mathew Alakulam
- Fr. Joseph Paredom
| | 1933 |
| Missionary Fathers of Rosa Mystica | M.F.R.M | Pierina Gilli | Rosa mystica Fathers | 1940 |
| Missionaries of St. Giuseppe of Mexico | M.J. | | | |
| Missionaries of God's Love | M.G.L. | Fr. Ken Barker | | 1986 |
| Missionaries of the Gospel of Life | | Fr. Frank Pavone | Priests for Life | 2005 |
| Missionaries of the Holy Spirit | M.Sp.S. | Ven. Félix de Jesús Rougier | Felixian | 1914 |
| Missionaries of the Immaculate Heart of Mary | M.I.H.M. | | | |
| Missionaries of Jesus the Eternal Priest | M.J. | Ven. Margherita Maria Guaini | | 1947 |
| Missionaries of La Salette | M.S. | Bishop Philibert de Bruillard | La Salette | 1852 |
| Missionaries of the Little Flower | M.L.F. | | | |
| Missionaries of Mariannhill | C.M.M. | Fr. Francis Pfanner | | 1907 |
| Missionaries of Mary | | - Sr. Sophie Renoux
- Sr. Edit Fabian
- Sr. Rachel Luxford
| | 2007 |
| Missionaries of Mary Immaculate | M.M.I. | | | |
| Missionaries of Mary Mediatrix | M.M.M. | | | |
| Missionary Oblates of Mary Immaculate | O.M.I. | St. Eugène de Mazenod | | 1816 |
| Missionary Oblates of the Holy Family | O.S.F. | Fr. Enrique Méndez Garibay | | 1988 |
| Missionaries of the Nativity of Mary | M.N.M. | | | |
| Missionaries of the Poor | M.O.P. | Fr. Richard Ho Lung | | 1981 |
| Missionaries of the Precious Blood (Precious Blood Fathers) | C.PP.S. | St. Gaspar del Bufalo | | 1815 |
| Missionaries of the Sacred Heart | M.S.C. | Blessed Jules Chevalier | | 1854 |
| Missionaries of the Sacred Hearts of Jesus and Mary | M.S.H.J.M. | St. Gaetano Errico | | 1836 |
| Missionaries of St. Alphonso de Liguori | | St. Anthony Gianelli | Gianelli | 1827 |
| Missionaries of St. Joseph | M.J. | | | |
| Missionary Congregation of Saint Andrew the Apostle | C.M.S.A.A. | Fr. Irineusz Michalik | | 1997 |
| Missionary Servants of Most Holy Trinity | S.T. | | | |
| Missionary Sisters of the Immaculate Conception | S.M.I.C. | - Abbot Armand August Bahlmann
- Mother Elizabeth Tombrock
| Franciscan | 1910 |
| Missionary Sisters of St. Theresa, Servant of Passion | S.T.S.P. | | Consolars of Christ Passion Family. | 1893–1992 |
| Missionary Sisters of La Salette | S.N.D.S. | Bishop Philibert de Bruillard | La Salette | 1852 |
| Missionary Society of St. Paul of Nigeria | M.S.P. | Catholic Bishops' Conference of Nigeria | | 1977 |
| Missionary Society of St. Thomas the Apostle | M.S.T. | | | |
| Missionary Sisters, Servants of the Holy Spirit | S.Sp.S. | St. Arnold Janssen | | 1889 |
| Monastic Fraternities of Jerusalem | | Br. Pierre-Marie Delfieux | | 1975 |
| Monks of Bethlehem (Monastic Brothers of Bethlehem, of the Assumption of the Virgin and of St. Bruno) | | | Carthusian | 1976 |
| Monks of the Most Blessed Virgin Mary of Mount Carmel | M. Carm. | Bishop David L. Ricken | Carmelite | 2003 |
| Montfort Missionaries (Company of Mary) | S.M.M. | St. Louis de Montfort | Montfortian | 1705 |
| N |
|---|
| Nga Whaea Atawhai o Aotearoa Sisters of Mercy New Zealand | R.S.M. | | Sisters of Mercy | 2005 |
| O |
|---|
| Oblate Apostles of the Two Hearts | O.A.T.H. | | | 1995 |
| Oblates of the Blessed Trinity | | | Trinitarian | 1987 |
| Oblate Hospital Franciscan Sisters (India) | O.H.F.S. | | | |
| Oblates of Jesus the Priest | O.J.S. | Ven. Félix de Jesús Rougier | Felixian | 1924 |
| Oblates of the Holy Spirit | O.S.S. | Elena Guerra | | 1882 |
| Oblates of the Most Holy Trinity | | | Trinitarian | |
| Oblates of the Precious Blood | O.P.B. | | | |
| Oblates of St. Alphonso de Liguori | | St. Anthony Gianelli | Gianelli | 1838 |
| Oblates of Sts. Ambrose and Charles | O.Ss.C.A. | | | |
| Oblates of St. Benedict | Obl. S.B. | | Benedictine | |
| Oblates of St. Francis de Sales | O.S.F.S. | Fr. Louis Brisson | Salesian | 1875 |
| Oblates of St. Joseph | O.S.J. | St. Joseph Marello | | 1878 |
| Oblate Sisters of Jesus the Priest | O.J.S. | Ven. Félix de Jesús Rougier, M.Sp.S. | | 1924 |
| Oblate Sisters of Providence | O.S.P. | James Nicholas Joubert & Mary Elizabeth Lange | | 1829 |
| Oblate Sisters of the Sacred Heart of Jesus | | Teresa Casini | | 1894 |
| Oblate Sisters of St. Francis de Sales | O.S.F.S. | | Salesian | 1868 |
| Oblates of the Virgin Mary | O.M.V. | Bruno Lanteri | | 1827 |
| Olivetans (Order of Our Lady of Mount Olivet) | | St. Bernardo Tolomei | Benedictine | 1313 |
| Opus Dei (The Prelature of the Holy Cross and Opus Dei) | Opus Dei | St. Josemaría Escrivá | Opus Dei | 1928 |
| Oratorians (Congregation of the Oratory of St. Philip Neri) | | St. Philip Neri | | 1875 |
| Order of Augustinian Recollects | O.A.R. | | Augustinian | 16th century |
| Order of Friars Minor (Franciscan Order) | O.F.M. | St. Francis of Assisi | Franciscan | 1209 |
| Order of St. Augustine | O.S.A. | St. Augustine of Hippo | Augustinian | 1244 |
| Order of St. Benedict | O.S.B. | St. Benedict of Nursia | Benedictine | 529 |
| Ottilien Congregation | | Dom Andreas Amrhein | Benedictine | 1884 |
| Our Lady's Missionaries of the Eucharist | O.L.M.E. | | | |
| Our Lady's Nurses of the Poor | O.L.N. | | | |
| Order of Saint Basil the Great | O.S.B.M. | | Greek Catholic Churches | 1596 |
| P |
|---|
| Padro Sisters | P.S. | | | |
| Palliumites (Society of the Pallium) | S.S.P. | Pope Pius IX | | 1851 |
| Pallottines (Society of the Catholic Apostolate) | S.A.C. | St. Vincent Pallotti | | 1835 |
| Paris Foreign Missions Society | M.E.P. | Fr. Alexandre de Rhodes | | 1658 |
| Parish Visitors of Mary Immaculate | P.V.M.I. | Mother Mary Teresa Tallon | | 1920 |
| Passionists (Congregation of the Passion) | C.P. | St. Paul of the Cross | Passionist | 1720 |
| Passionist Sisters (Sisters of the Cross and the Passion) | | Mother Elizabeth Prout | Passionist | 1852 |
| Passionist Nuns (Congregation of the Passion of Jesus Christ) | C.P. | | Passionist | |
| Patriarchal Congregation of Bzommar | I.P.C.B. | Patriarch Jacob Petros II Hovsepian | | 1750 |
| Patrician Brothers | F.S.P. | Daniel Delany | | 1808 |
| Pauline Fathers (Order of Saint Paul the First Hermit) | O.S.P.P.E. | Blessed Eusebius of Esztergom | | 1250 |
| Paulist Fathers (Missionary Society of St. Paul the Apostle) | C.S.P. | Fr. Isaac Thomas Hecker | Paulist | 1858 |
| Pauvres de Saint-François (Poor of St. Francis) (France) | P.S.F. | | Franciscan | |
| Petites Franciscaines de Marie (Little Franciscans of Mary) (France) | P.F.M. | | Franciscan | |
| Petites Soeurs du Coeur de Jésus (Bangui, Central African Republic) | | | Franciscan | |
| Piarists (Order Poor Clerics Regular of the Mother of God of the Pious Schools, Scolopi, Escolapios) | | St. Joseph Calasanz | | 1617 |
| Piccole Figlie di St. Giuseppe (Italy) | PP.FF. St. G. | | | |
| Pious Disciples of the Divine Master | P.D.D.M. | | Pauline | 1924 |
| Poor Brothers of St. Francis | C.F.P. | Johannes Hoever | Franciscan | 1861 |
| Poor Clares of Santa Barbara | | | Franciscan | 1928 |
| Poor Handmaids of Jesus Christ | P.H.J.C. | Blessed Catherine Kasper | | 1851 |
| Poor Servants of Divine Providence (India) | P.S.D.P. | | | |
| Poor Sisters of Divine Providence (India) | P.S.D.P. | | | |
| Poor Sisters of Jesus Crucified and the Sorrowful Mother | C.J.C. | Fr. Alphonsus Maria | | 1924 |
| Poor Sisters of Nazareth | P.S.N. | | | |
| Poor Sisters of Our Lady (India) | P.S.O.L. | | | |
| Poor Sisters of St. Joseph-Hermanas (Pobres Josefinas Buenoarensas) | P.S.S.J. | | | |
| Prabhudasi Sisters of Ajmer (Handmaids of the Lord) (India) | P.S.A. | | | |
| Presentation Sisters (Sisters of the Presentation of the Blessed Virgin Mary) | P.B.V.M. | Ven. Nano Nagle | Presentation Sisters | 1775 |
| Presentation Sisters of Watervliet, New York (Sisters of the Presentation of the Blessed Virgin Mary) | P.B.V.M. | Presentation Sisters from Ireland | Presentation Sisters | 1881 |
| Premonstratensians (Order of Canons Regular of Prémontré, Norbertines, White Canons) | C.C.O.P. | St. Norbert of Xanten | Premonstratensians | 1120 |
| Presentation Brothers | F.P.M. | Blessed Edmund Ignatius Rice | Edmund Rice | 1802 |
| Priests for Life | P.F.L. | Fr. Lee Kaylor | Priests for Life | 1990 |
| Priests of the Sacred Heart (Dehonians) | S.C.J. | Fr. Léon Dehon | | 1878 |
| Priestly Fraternity of St. Peter | F.S.S.P. | Fr. Josef Bisig | | 1988 |
| Priestly Society of the Holy Cross | | St. Josemaría Escrivá | Opus Dei | 1943 |
| Priestly Society of St. Joseph Benedict Cottolengo (Cottolengo Congregation) | S.S.C. | | | 1840 |
| Putri Karmel | | | Carmelite | 1982 |
| Q |
|---|
| Queen of Apostles Sisters (Sisters of Mary, Queen of Apostles) | | Blessed James Alberione | Pauline | 1959 |
| Qui Nhon Missionary Sisters of the Holy Cross | L.H.C. | | Lovers of the Holy Cross | 1922 |
| R |
|---|
| Racine Dominican Sisters (Congregation of Sisters of St. Dominic of St. Catherine of Sienna) | O.P. | | Dominican | 1862 |
| Redemptorists (Congregation of the Most Holy Redeemer) | C.Ss.R. | St. Alphonsus Liguori | Redemptorist | 1732 |
| Regina Virginum | E.P. | Msgr. João Scognamiglio Clá Dias | Heralds of the Gospel | 2005 |
| Regnum Christi Consecrated Men | R.C. | | Regnum Christi | 1975 |
| Regnum Christi Consecrated Women | R.C. | - Margarita Estrada
- Guadalupe Magaña
- Graciela Magaña
| Regnum Christi | 1969 |
| Religious of the Assumption | R.A. | Mother Marie-Eugénie de Jésus, R.A. | Assumptionist Sisters | 1839 |
| Religious of Christian Education | | Abbé Louis Lafosse | | 1817 |
| Religious of Jesus and Mary | R.J.M. | St. Claudine Thévenet | | 1818 |
| Religious of Mary Immaculate | R.M.I. | Vincentia Maria López y Vicuña | | 1876 |
| Religious of Nazareth | | | | |
| Religious of the Sacred Heart of Mary | R.S.H.M. | Jean Gailhac | | 1849 |
| Religious of the Virgin Mary | R.V.M. | Ven. Ignacia del Espíritu Santo | | 1684 |
| Religious Sisters of Mercy of Alma, Michigan | R.S.M. | | | 1973 |
| Religious Sisters of Charity (Irish Sisters of Charity) | R.S.C. | Mary Aikenhead | | 1815 |
| Resurrectionist Congregation | C.R. | Peter Semenenko | | 1836 |
| Rogationists of the Heart of Jesus | R.C.J. | St. Annibale Maria di Francia | | 1897 |
| Rosminians (Institute of Charity) | I.C. | Blessed Antonio Rosmini-Serbati | | 1828 |
| S |
|---|
| Sadhu Sevana Sisters (India) | S.S.S. | Fr. Thomas Maliekal | | 1975 |
| Saint Patrick’s Society for the Foreign Missions (Kiltegan Fathers) | S.P.S. | - Bishop Joseph Shanahan
- Fr. Patrick Whitney
| | 1920 |
| Salesians of Don Bosco (Society of St. Francis de Sales) | S.D.B. | St. John Bosco | Salesian | 1857 |
| Salesian Sisters (Daughters of Mary Help of Christians) | F.M.A. | St. Maria Domenica Mazzarello | Salesian | 1872 |
| Salvatorians (Society of the Divine Savior) | S.D.S. | Ven. Francis Mary of the Cross Jordan | | 1881 |
| Sisters of the Divine Savior | S.D.S. | | | 1888 |
| Scalabrinian Missionaries (Missionaries of St. Charles Borromeo) | C.S. | Blessed Giovanni Battista Scalabrini | Scalabrinian | 1887 |
| Scalabrinian Missionary Sisters (Missionary Sisters of St. Charles Borromeo) | C.S. | Blessed Giovanni Battista Scalabrini | Scalabrinian | 1895 |
| Scarboro Foreign Mission Society | S.F.M. | | | 1918 |
| School Sisters of Christ the King | C.K. | Bishop Glennon Patrick Flavin | | 1976 |
| School Sisters of Notre Dame | S.S.N.D. | Mother Caroline Gerhardinger | | 1833 |
| Servants of Christ | | Mgr. Petrus Johannes Willekens. SJ | | 1938 |
| Servants of the Blessed Sacrament | | | Eymardian | 1858 |
| Servants of Charity (Guanellians) | | St. Luigi Guanella | | 1908 |
| Servants of the Holy Cross | | | Augustinian | |
| Servants of the Holy Family | S.S.F. | | | 1977 |
| Servants of the Holy Heart of Mary | S.S.C.M. | | | |
| Servants of the Lord and the Virgin of Matara | S.S.V.M | Fr. Carlos Miguel Buela | Institute of the Incarnate Word | 1985 |
| Servites (Order of the Servants of Mary) | O.S.M. | Seven Holy Founders | Servites | 1233 |
| Seva Missionary Sisters of Mary | S.M.S.M. | Msgr. John Kottaram | | 1974 |
| Servite Sisters (Religious Sisters of the Third Order of Servites, Mantellates) | O.S.M. | | Servites | 1284 |
| Sinsinawa Dominican Sisters (Sinsinawa Dominican Congregation of the Most Holy Rosary) | O.P. | Fr. Samuel Charles Mazzuchelli | Dominican | 1847 |
| Sisters Adorers of the Precious Blood | R.P.G. | Mother Catherine Caouette | | 1861 |
| Sisters Adorers of the Precious Blood and Daughters of Mary Immaculate | A.P.B. | | | |
| Sisters Adorers of the Royal Heart of Jesus Christ Sovereign Priest | | Cardinal Ennio Antonelli | Salesian | 2004 |
| Sisters of the Apostolic Carmel | A.C. | Mother Veronica of the Passion | Carmelite | 1870 |
| Sisters of Bethlehem (Monastic Sisters of Bethlehem, of the Assumption of the Virgin and of St. Bruno) | | | Carthusian | 1950 |
| Sisters of the Blessed Sacrament | | St. Katharine Drexel | | 1891 |
| Sisters of Calvary | S.C. | | | |
| Sisters of the Cenacle | R.C. | | | 1826 |
| Sisters of Charity of Australia | R.S.C. | | Vincentian-Setonian | 1838 |
| Sisters of Charity of the -Blessed Virgin Mary | B.V.M. | Mother Mary Frances Clarke | Vincentian-Setonian | 1831 |
| Sisters of Charity of Cincinnati | S.C. | Mother Margaret Farrell George | Vincentian-Setonian | 1829 |
| Sisters of Charity of Good and Perpetual Succour | B.P.S. | Mother Caroline Lenferna de Laresle | Vincentian-Setonian | 1850 |
| Sisters of Charity of Halifax (Sisters of Charity of St. Vincent de Paul) | S.C. | Archbishop William Walsh | Vincentian-Setonian | 1849 |
| Sisters of Charity of the Immaculate Conception | S.C.I.C. | | Vincentian-Setonian | 1854 |
| Sisters of Charity of the Incarnate Word of Houston | C.C.V.I. | Bishop Claude Marie Dubuis | Augustinian | 1866 |
| Sisters of Charity of the Incarnate Word of San Antonio | C.C.V.I. | | Augustinian | 1869 |
| Sisters of Charity of Jesus and Mary | | Canon Petrus Joseph Triest | Vincentian-Setonian | 1803 |
| Sisters of Charity of Leavenworth | S.C.L. | Mother Xavier Ross | Vincentian-Setonian | 1858 |
| Sisters of Charity of Nazareth | S.C.N. | Bishop John Baptist Mary David | Vincentian-Setonian | 1812 |
| Sisters of Charity of Nevers | | Dom Jean-Baptiste Delaveyne | Vincentian-Setonian | 1680 |
| Sisters of Charity of New York | S.C. | 3 Sisters of Charity from Philadelphia | Vincentian-Setonian | 1841 |
| Sisters of Charity of Ottawa (Grey Nuns of Ottawa) | S.C.O. | Mother Elizabeth Bruyere | Vincentian-Setonian | 1845 |
| Sisters of Charity of Our Lady of Evron | | Mother Perrine Thulard | Vincentian-Setonian | 1682 |
| Sisters of Charity of Our Lady of Mercy | O.L.M. | Bishop John England | Vincentian-Setonian | 1829 |
| Sisters of Charity of Our Lady Mother of the Church | | | Vincentian-Setonian | |
| Sisters of Charity of Providence | S.P. | Blessed Émilie Gamelin | | 1844 |
| Sisters of Charity of St. Ann | S.Ch.S.A. | | Vincentian-Setonian | |
| Sisters of Charity of St. Augustine | S.C.A. | Bishop Louis Amadeus Rappe | Augustinian | 1851 |
| Sisters of Charity of Sts. Bartolomea Capitanio and Vincenza Gerosa | S.C.C.G. | | Vincentian-Setonian | 1832 |
| Sisters of Charity of St. Elizabeth | S.C. | Mother Mary Xavier Mehegan | Vincentian-Setonian | 1859 |
| Sisters of Charity of St. Hyacinthe | S.C.S.H. | Archbishop Joseph Signay | Vincentian-Setonian | 1840 |
| Sisters of Charity of St. John of God (India) | S.C.J.G. | | Vincentian-Setonian | |
| Sisters of Charity of St. Paul | S.P.C. | Fr. Louis Chauvet | | 1696 |
| Sisters of Charity of Seton Hill | S.C. | Mother Aloysia Lowe | Vincentian-Setonian | 1870 |
| Sisters of Charity of Quebec | S.C.Q. | Mother Marcelle Mallet | Vincentian-Setonian | 1849 |
| Sisters of Christian Charity | S.C.C. | Blessed Pauline von Mallinckrodt | | 1849 |
| Sisters of the Child Jesus of Chauffailles | R.E.J. | | Sisters of the Child Jesus | 1859 |
| Sisters of the Child Jesus of Le Puy-en-Velay | R.E.J. | Mother Ann-Marie Martel | Sisters of the Child Jesus | 1676 |
| Sisters of the Cross and Passion | C.P. | Mother Elizabeth Prout | Passionist | 1852 |
| Sisters of the Destitute | | Fr. Varghese Payyappilly Palakkappilly | | 1927 |
| Sisters of the Divine Compassion | | Mother Mary Veronica | | 1886 |
| Sisters of the Good Shepherd (Congregation of Our Lady of Charity of the Good Shepherd) | R.G.S. | St. Mary Euphrasia Pelletier | Good Shepherd Sisters | 1835 |
| Sisters of the Good Shepherd of Omaha | R.G.S. | Bishop Richard Scannell | Good Shepherd Sisters | 1894 |
| Sisters of the Guardian Angel | S.A.C. | | | |
| Sisters of the Holy Childhood of Jesus and Mary | | Anne-Victoire Méjanes | | 1807 |
| Sisters of the Holy Cross (Indiana) | C.S.C. | | Holy Cross | 1841 |
| Sisters of Holy Cross (Montreal) | C.S.C. | | Holy Cross | 1847 |
| Sisters of the Holy Family (Louisiana) | S.H.F. | Ven. Henriette DeLille | | 1837 |
| Sisters of the Holy Family of Nazareth | C.S.F.N. | Franciszka Siedliska | | 1875 |
| Sisters of the Holy Family of Villefranche | S.F. | St. Émilie de Rodat | | 1816 |
| Sisters of the Holy Humility of Mary | H.M. | Fr. John Joseph Begel | | 1856 |
| Sisters of the Holy Names of Jesus and Mary | S.N.J.M. | Marie Rose Durocher | | 1837 |
| Sisters of the Holy Redeemer | | | | |
| Sisters of the Holy Spirit and Mary Immaculate | S.H.Sp. | Mother Margaret Mary Healy Murphy | | 1887 |
| Sisters of the Holy Union of the Sacred Hearts | S.U.S.C. | John Baptist Debrabant | Salesian | 1828 |
| Sisters of the Immaculate Conception of Castres | | St. Émilie de Villeneuve | | 19th century |
| Sisters of the Infant Jesus | I.J. | Fr. Nicholas Barré | | 1666 |
| Sisters of Jesus Crucified | C.J.C. | | | |
| Sisters of Jesus, Our Hope | S.J.H. | | | 1992 |
| Sisters of Life | S.V. | Cardinal John Joseph O'Connor | | 1991 |
| Sisters of the Little Flower of Bethany (India) | B.S. | | | |
| Sisters of Marie-Auxiliatrice | M.A. | Sophie-Thérèse de Soubiran La Louvière | | 1864 |
| Sisters of Mary, Mother of the Church | S.M.M.C. | 7 Founders in the Diocese of Spokane | | 2007 |
| Sisters of Mary of the Presentation | S.M.P. | Father Joachim Fleury, Mother St. Louis | Vincentian | 1828 |
| Sisters of Mary Queen | C.M.R. | | | |
| Sisters of Mercy (Religious Sisters of Mercy) | R.S.M. | Mother Catherine McAuley | Sisters of Mercy | 1831 |
| Sisters of Mercy of the Americas | R.S.M. | | Sisters of Mercy | 1991 |
| Sisters of Mercy in Australia and Papua New Guinea | R.S.M. | Mother Ursula Frayne | Sisters of Mercy | 1846 |
| Sisters of Mercy of Newfoundland | R.S.M. | | Sisters of Mercy | |
| Sisters of Mercy of Philippines | R.S.M. | Bishop Lino Gonzaga | Sisters of Mercy | 1954 |
| Sisters of Mercy of St. Borromeo of Alexandria | | | Borromean Sisters | 1884 |
| Sisters of Mercy of St. Borromeo of Cairo | | | Borromean Sisters | 1904 |
| Sisters of Mercy of St. Borromeo of Emmaus | | | Borromean Sisters | |
| Sisters of Mercy of St. Borromeo of Haifa | | | Borromean Sisters | 1888 |
| Sisters of Mercy of St. Borromeo of Jerusalem | | | Borromean Sisters | 1886 |
| Sisters of Mercy of St. Borromeo of Maastricht | | Fr. Peter Anton van Baer | Borromean Sisters | 1837 |
| Sisters of Mercy of St. Borromeo of Nancy | | | Borromean Sisters | 1626 |
| Sisters of Mercy of St. Borromeo of Prague | | Prince-Bishop Alois Josef, Freiherr von Schrenk | Borromean Sisters | 1838 |
| Sisters of Mercy of St. Borromeo of Trebnitz | | Prince-Bishop Melchior, Freiherr von Diepenbrock | Borromean Sisters | 1848 |
| Sisters of Mercy of St. Borromeo of Trier | | Nancy Borromean Sisters | Borromean Sisters | 1811 |
| Sisters of Mercy of the Union (Great Britain) | R.S.M. | | Sisters of Mercy | 1976 |
| Sisters of Mercy of Verona | I.S.M. | | | 1840 |
| Sisters Minor of Mary Immaculate | | - Fr. Elia M. Bruson, OFM Conv.
- Mother Maria Elisabetta Patrizi
| | 1983 |
| Sisters of Mission Service | S.M.S. | Fr. Godfrey W. Kuckartz, OMI | | 1951 |
| Sisters of Notre Dame de Namur | | Julie Billiart | | 1803 |
| Sisters of Our Lady of Consolation | | | Augustinian | |
| Sisters of Our Lady of Sion | N.D.S. | | Congregation of Our Lady of Sion | 1843 |
| Sisters of the Poor, Palazzolo Institute | S.d.P.I.P. | Luigi Maria Palazzolo | | 1869 |
| Sisters of the Presentation of Mary | P.M. | Blessed Anne-Marie Rivier | | 1796 |
| Sisters of Providence of St. Mary-of-the-Woods | S.P. | Theodore Guerin | | 1840 |
| Sisters of Providence of St. Vincent de Paul | S.P. | 4 Sisters of Charity of Montreal | Vincentian-Setonian | 1861 |
| Sisters of the Reparation of the Holy Face | | Ven. Hildebrand Gregori | Benedictine | 1950 |
| Sisters of La Retraite | | Mother Catherine de Francheville | | 1674 |
| Sisters of Sacred Sciences | S.S.S. | Fr. Antony Kolencherry | | 1997 |
| Sisters of St. Agnes | | Caspar Rehrl | | 1858 |
| Sisters of Saint Anne | C.S.S.A. | Blessed Marie Anne Blondin | | 1850 |
| Sisters of St. Benedict of Our Lady of Grace | | | | |
| Sisters of St. Casimir | S.S.C. | Mother Maria Kaupas | | 1907 |
| Sisters of St. Chretienne | S.S.Ch. | Anne Victoire de Mejanes Tailleur | | 1807 |
| Sisters of St. Dorothy (Dorotheans) | S.S.D. | Paula Frassinetti | | 1834 |
| Sisters of St. Elizabeth | | Mother Dorothea Wolff | | 1842 |
| Sisters of St. Francis of Assisi | | 37 Franciscan Sisters of Perpetual Adoration | Franciscan | 1873 |
| Sisters of St. Francis of Assisi | | | Franciscan | 1849 |
| Sisters of St. Francis of Penance and Christian Charity | | Mother Magdalen Damen | Franciscan | 1835 |
| Sisters of St. Francis of Rochester, Minnesota | | Sister Mary Alfred Moes | Franciscan | 1877 |
| Sisters of St. Joan of Arc | | | Augustinian | |
| Sisters of St. John the Baptist | C.S.J.B. | | | 1876 |
| Sisters of St Joseph (Sisters of Saint Joseph of Medaille) | C.S.J. | Fr. Jean Paul Médaille | | 1650 |
| Sisters of St. Joseph of the Apparition | | St. Emily de Vialar | | 1832 |
| Sisters of St. Joseph of Chambéry | | Sisters of St. Joseph of Lyons | | 1812 |
| Sisters of St. Joseph of Peace | C.S.J.P. | Margaret Anna Cusack | | 1884 |
| Sisters of St. Joseph of Springfield | | | | |
| Sisters of St. Joseph of the Sacred Heart | S.S.J. | | | 1866 |
| Sisters of St. Joseph of Tarbes | S.J.T. | | | |
| Sisters of St. Joseph the Worker | S.J.W. | | | |
| Sisters of St. Louis | S.S.L. | | | |
| Sisters of St. Martha | C.S.M. | Bishop John Cameron | Vincentian-Setonian | 1900 |
| Sisters of St. Mary of Namur | S.S.M.N. | Fr. Nicholas Minsart | | 1819 |
| Sisters of St. Mary of Oregon | S.S.M.O. | 9 Oregonian women | | 1886 |
| Sisters of St. Paul Third Order Regular | C.S.P.T.O.R. | | Paulist | |
| Sisters of St. Peter Claver (India) | S.S.P.C. | | | |
| Sisters of St. Rita | | Fr. Hugolinus Dach, O.S.A. | Augustinian | 1911 |
| Sisters of St. Therese of the Child Jesus (St. Therese Sisters) | S.S.Th. | Maria Crocifissa Curcio | | 20th century |
| Sisters of the Society Devoted to the Sacred Heart | S.D.S.H. | | | 1941 |
| Sister Servants of the Eternal Word of Birmingham, Alabama | S.S.E.W. | | | |
| Sisters, Servants of the Immaculate Heart of Mary (Monroe, Michigan) | I.H.M. | - Fr. Louis Florent Gillet, C.Ss.R.
- Mother Marie Theresa Duchemin
- Mother Theresa Maxis
| Immaculate Heart of Mary | 1845 |
| Sisters, Servants of the Immaculate Heart of Mary (Chester County, Pennsylvania) | I.H.M. | | Immaculate Heart of Mary | 1858 |
| Sisters, Servants of the Immaculate Heart of Mary (Scranton, Pennsylvania) | I.H.M. | | Immaculate Heart of Mary | 1871 |
| Sisters, Servants of the Lord and the Virgin of Matará | S.S.V.M. | | | 1988 |
| Sisters, Servants of the Most Sacred Heart of Jesus | S.S.C.J. | | | 1894 |
| Sisters of Social Service | S.S.S. | Mother Margit Slachta | Benedictine | 1923 |
| Slav Congregation | O.S.B. | | Benedictine | 1945 |
| Snehagiri Missionary Sisters | S.M.S. | Fr. Abraham Kaippanplackal | | 1963 |
| Society of African Missions (S.M.A. Fathers) | S.M.A. | Fr. Melchior de Marion Brésillac | | 1850 |
| Society of the Atonement (Atonement Friars, Graymoor Friars) | S.A. | | | 1909 |
| Society of Bethlehem Mission Immensee | S.M.B. | | | 1921 |
| Society of Bethlemite Sisters | Bethl. | | | |
| Society of Christ Fathers (The Society of Christ Fathers for Poles Living Abroad) | S.Chr. | | | 1932 |
| Society of the Divine Word | S.V.D. | St. Arnold Jansen | | 1875 |
| Society of the Helpers of the Holy Souls | | Blessed Eugenia Smet | | 1856 |
| Society of the Holy Child Jesus | S.H.C.J. | Mother Cornelia Connelly | | 1846 |
| Society of Marian Servants of Jesus | S.M.S.J. | | | 2010 |
| Société des Missions-Étrangères du Québec | P.M.E. | | | 1921 |
| Society of the Missionaries of St. Francis Xavier | S.F.X. | Fr. Jose Mariano Bento Martins | | 1887 |
| Society of the Missionary Servants of the Poor | M.S.o.P. | | | 2008 |
| Society of Our Lady of the Most Holy Trinity | S.O.L.T. | Fr. James H. Flanagan | Trinitarian | 1958 |
| Society of St. Augustine (Kansas Augustinians) | S.S.A. | 4 Augustinian Recollects | Augustinian | 1981 |
| Society of St. Edmund (Edmundians) | S.S.E. | Fr. Jean Baptiste Muard | | 1843 |
| Society of St. John | S.S.J. | | | |
| Society of St. Paul (Paulines) | S.S.P. | Blessed Giacomo Alberione | Pauline | 1914 |
| Society of St. Pius X | S.S.P.X. | Archbishop Marcel Lefebvre | | 1970 |
| Society of St. Vincent de Paul | | Blessed Antoine-Frédéric Ozanam | Vincentian-Setonian | 1833 |
| Society of the Sacred Heart | R.S.C.J. | St. Madeleine Sophie Barat | | 1800 |
| Sisters of the Society of St. Pius X | | Archbishop Marcel Lefebvre | | 1974 |
| Sodality of Christian Life (Sodalicio de Vida Christiana) | S.C.V. | | | 1971 |
| Solesmes Congregation | O.S.B. | Pope Gregory XVI | Benedictine | 1837 |
| Sons of the Holy Family | S.F. | Fr. Josep Manyanet i Vives | | 1864 |
| Sons of Mary Health of the Sick | F.M.S.I | Fr. Edward F. Garesche, SJ | | 1952 |
| Sons of Merciful Love | F.A.M. | Sr. Esperanza Jesus Alhama Valera | | 1951 |
| Sovereign Military Order of Malta | S.M.O.M. | Blessed Gerard Thom | | 1099 |
| Spanish Institute of St. Francis Xavier for Foreign Missions | I.E.M.E. | | Xaverian | |
| Stigmatines (Congregation of the Sacred Stigmata) | C.S.S. | St. Gaspar Bertoni | | 1816 |
| Subiaco Cassinese Congregation | O.S.B. | Dom Pietro Casaretto | Benedictine | 1867 |
| Sulpician Fathers (Society of Saint-Sulpice) | | Fr. Jean-Jacques Olier | | 1642 |
| Swiss Congregation | O.S.B. | | Benedictine | 1602 |
| Swiss-American Congregation | O.S.B. | Pope Leo XIII | Benedictine | 1881 |
| Sylvestrine Congregation | O.S.B. Silv. | St. Sylvester Gozzolini | Benedictine | 1231 |
| T |
|---|
| Taborite Nuns of Mary Immaculate | | | | |
| Tertiary Sisters of St. Francis – Cameroon | T.O.S.F. | | | 1935 |
| Teutonic Knights (Order of Brothers of the German House of Saint Mary in Jerusalem, German Order) | O.S.M.T. | | Teutonic Order | 1192 |
| Third Order Secular of the Most Holy Trinity | O.SS.T. Ter. | | Trinitarian | |
| Trappists (Order of Cistercians of Strict Observance) | O.C.S.O. | Abbott Armand Jean le Bouthillier de Rancé | Benedictine | 1664 |
| Trappist Nuns (Cistercian Nuns of Strict Observance) | | | Benedictine | |
| Trinitarians (Order of the Most Holy Trinity for the Redemption of the Captives) | O.S.S.T. | St. John of Matha | Trinitarian | Late 12th century |
| Trinitarians of Mary | | Mother Lillie | Trinitarian | 1992 |
| Trinitarian Sisters of Valence (Congregation Sisters of the Most Holy Trinity) | C.S.S.T. | Four women from Saint-Nizier-de-Fornas | Trinitarian | 1660 |
| U |
|---|
| Ursuline Franciscan Sisters | U.F.S. | | Ursuline, Franciscan | |
| Ursulines of Jesus | U.J. | | Ursuline | |
| Ursulines of Mary Immaculate | U.M.I. | | Ursuline | |
| Ursuline Nuns (Order of St. Ursula) | O.S.U. | St. Angela Merici | Ursuline | 1535 |
| Ursuline Sisters (Company of St. Ursula) | O.S.U. | St. Angela Merici | Ursuline | 1535 |
| Ursuline Sisters (Society of St. Ursula) | S.U. | | Ursuline | |
| Ursuline Sisters of the Blessed Virgin Mary | O.S.V. | | Ursuline | |
| Ursuline Sisters of Bruno | O.S.U. | | Ursuline | |
| Ursuline Sisters of Prelate | O.S.U. | Fr. Joseph Riedinger | Ursuline | 1919 |
| Ursuline Sisters of Somasca | U.S.S. | | Ursuline | |
| Ursuline Sisters of Tildonk | O.S.U. | | Ursuline | |
| V |
|---|
| Vallumbrosan Order | | St. John Gualbert | Benedictine | 11th century |
| Venerini Sisters (Religious Teachers Venerini) | M.P.V. | St. Rose Venerini | | 1685 |
| Verbum Dei Missionary Fraternity | M.V.D.F. | Fr. Jaime Bonet | | 1963 |
| Viatorians (Clerics of Saint Viator) | C.S.V. | Fr. Louis Querbes | | 1831 |
| Victory Noll Sisters | O.L.V.M. | | | |
| Vincentians (Congregation of the Mission, Paules, Lazarists) | C.M. | St. Vincent de Paul | Vincentian-Setonian | 1625 |
| Virgo Flos Carmeli | E.P. | Msgr. João Scognamiglio Clá Dias | Heralds of the Gospel | 2005 |
| Visitation Sisters (Sisters of the Visitation Congregation of the Blessed Virgin Mary) | S.V.M. | | Vincentian-Setonian | |
| Visitation Sisters (Order of the Visitation of Holy Mary, Visitandines) | V.H.M. | | Salesian | 1610 |
| Visitation Sisters of Don Bosco | V.S.D.B. | | | |
| Vocationist Fathers (Society of Divine Vocations) | S.D.V. | | | |
| W |
|---|
| White Fathers (Missionaries of Our Lady of Africa of Algeria) | M.Afr. | Cardinal Charles Lavigerie | Missionaries of Africa | 1868 |
| White Sisters (Missionary Sisters of Our Lady of Africa) | M.S.O.L.A. | Cardinal Charles Lavigerie | Missionaries of Africa | 1869 |
| Workers of the Kingdom of Christ | C.O.R.C. | | | 1963 |
| X |
|---|
| Xaverian Brothers (Congregation of St. Francis Xavier) | C.F.X. | Br. Theodore Ryken | Xaverian | 1839 |
| Xaverian Missionaries (Pious Society of St. Francis Xavier for Foreign Missions) | S.X. | St. Guido Maria Conforti | Xaverian | 1895 |
| Xaverian Missionary Sisters of Mary (Missionary Society of Mary) | S.X. | | Xaverian | 1898 |
| Xaverian Missionaries of Yarumal | M.X.Y. | | Xaverian | |
| Z |
|---|
| Zirc Cistercian Congregation | O.S.B. | | Benedictine | 1923 |