| A |
| A.A. | Augustinians of the Assumption (Assumptionists) |
| Ab. | Abbot |
| Abp. | Archbishop |
| A.C. | Auditor Camerae (Auditor of the Papal Treasury) |
| A.J. | Apostles of Jesus |
| A.M. | Artium Magister ("Master of Arts") |
| Ap Sed. Leg. | Apostolicae Sedis Legatus ("Legate of the Apostolic See") |
| Archiep. | Archiepiscopus ("Archbishop") |
| Archid. | Archidiaconus ("Archdeacon") |
| Archiprb. | Archipresbyter ("Archpriest") |
| A.S.C. | Adorers of the Blood of Christ |
| A.S.C.J. | Apostles of the Sacred Heart of Jesus |
| A.S.S.P. | Angelic Sisters of St. Paul |
| B |
| B. | Clerica Regular of St. Paul (Barnabites) |
| B.A. | Order of Basilians of Aleppo of the Melkites |
| B.D. | Bachelor of Divinity |
| B.F.C.C. | Brothers for Christian Community |
| B.G.S. | Little Brothers of the Good Shepherd |
| B. Se. | Baccalaureus Scientiarum ("Bachelor of Sciences") |
| B.U.J. | Baccalaureus Utriusque Juris ("Bachelor of Both Laws" --i.e., civil and canon) |
| B.T. | Baccalaureus Theologiae ("Bachelor of Theology") |
| B.V.M. | Sisters of Charity of the Blessed Virgin Mary |
| C |
| Ca,. Ap. | Camera Apostolica ("Apostolic Camera" -- i.e. Papal Treasury) |
| C.C.D. | Confraternity of Christian Doctrine |
| C.C.R. | Congregation of Carmelite Religious |
| C.C.R.S.A. | Congregation of the Clerics Regular of Saint Augustine |
| C.C.V.I. | Sisters of Charity of the Incarnate Word |
| C.C.F. | Congregation for the Doctrine of Faith |
| C.D.P. | Sisters of Divine Providence |
| C.F.A. | Alexian Brothers |
| C.F.C. | Congregation of Christian Brothers |
| C.F.I.C. | Congregation of Franciscans of the Immaculate Conception |
| C.F.R. | Franciscan Friars of the Renewal |
| C.F.X. | Congregation of Xaverian Brothers |
| C.I.C.M. | Congregation of the Immaculate Heart of Mary (ScheutMissions) |
| C.H.M. | Congregation of the Humility of Mary |
| C.J. | Josephite Fathers |
| C.J.D. | Canons of Jesus the Lord |
| C.J.M. | Congregation of Jesus and Mary |
| C.M. | Congregation of Priests of the Mission (Vincentians orLazarists) |
| C.M.F. | Missionary Sons of the Immaculate Heart of Mary (CordisMariae Filius) (Claretians) |
| C.M.I. | Carmelites of Mary Immaculate |
| C.M.M. | Congregation of Marian Hill Missionaries |
| C.M.R.I. | Congregation of Mary Immaculate Queen (Congregatio MariaeReginae Immaculatae) |
| C.N.D. | Congregation of Notre Dame |
| C.O. | Congregation of the Oratory (Oratorians) |
| C.P. | Congregation of the Passion (Passionists) |
| C.P.M. | Congregation of the Fathers of Mercy |
| C.PP.S. | Society of the Precious Blood |
| CPS | Missionary Sisters of the Precious Blood (Missionary Sistersof Mariannhill) |
| C.R. | Clerics Regular (Theatines) |
| C.R. | Congregation of the Resurrection (Resurrectionists) |
| C.R.I.C. | Canons Regular of the Immaculate Conception |
| C.R.L. | Canons Regular of the Lateran |
| C.R.S. | Clerics Regular of Somasca (Somascans) |
| C.R.S.P. | Clerics Regular of St. Paul |
| C.S. | Missionaries of St. Charles (Scalabrinians) |
| C.S.B. | Congregation of St. Bridget |
| C.S.B. | Congregation of St. Basil (Basilians) |
| C.S.C. | Congregation of Holy Cross (Holy Cross Fathers) |
| C.S.J. | Congregation of St. Joseph |
| C.S.J.B. | Sisters of St John the Baptist |
| C.S.J.P. | Sister of St. Joseph of Peace |
| C.S.P. | Congregation of St. Paul (Paulists) |
| C.S.R. | Sisters of the Holy Redeemer |
| C.S.S. | Stigmatine Fathers and Brothers |
| C.S.S.F. | Congregation of Sisters Saint Felice Cantalicio (Felicians) |
| C.S.Sp. | Congregation of the Holy Spirit (Holy Ghost Fathers orSpiritans) |
| C.Ss.R. | Congregation of the Most Holy Redeemer (CongregatioSanctissimi Redemptoris) (Redemptorist) |
| C.S.V. | Clerics of St. Viator (Viatorians) |
| C.V.I. | Sisters of the Incarnate Word and Blessed Sacrament |
| D |
| D.C. | Congregation of Fathers of Christian Doctrine (Doctrinarians) |
| D.C.L. | Doctor Civilis [or Canonicae] Legis ("Doctor of Civil [orCanon] Law") |
| D.D. | Doctor Divinitatis ("Doctor of Divinity" -- i.e. Theology) |
| D.H.M. | Daughters of the Heart of Mary |
| D.H.S. | Daughters of the Holy Spirit |
| D.M. | Daughters of Mary, Mother of the Church |
| D.M.S.E. | Dominican Missionary Sisters of St. Elizabeth |
| D. Se. | Doctor Scientiarum ("Doctor of Sciences") |
| D.S.M.P. | Daughters of Saint Mary of Providence |
| D.W. | Daughters of Wisdom (Filles de la Sagesse) (Montfort Sisters) |
| E |
| Er.Cam. | Camaldolese Hermits of the Congregation of Monte Corona |
| F |
| F.C. | Brothers of Charity |
| F.C.J. | Faithful Companion of Jesus, Sisters |
| F.D.C.C. | Canossian Daughters of Charity |
| F.D.N.S.C. | Daughters of Our Lady of the Sacred Heart |
| F.D.P. | Sons of Divine Providence |
| F.F.S.C. | Franciscan Brothers of the Holy Cross |
| F.I. | Franciscans of the Immaculate |
| F.I.C. | Brothers of Christian Instruction |
| F.M.A. | Daughters of Mary Help of Christian (Salesian Sisters) |
| F.M.I. | Daughters of Mary Immaculate (Marianist Sisters) |
| F.M.M. | Franciscan Missionaries of Mary |
| F.M.S. | Marist Brothers |
| F.M.S.I. | Sons of Mary, Health of the Sick |
| F.P.O. | Franciscans of Primitive Observance |
| F.S. | Sisters of Our Lady of Fatima |
| F.S.C. | Brothers of the Christian Schools (Christian Brothers orLasallians) |
| F.S.C.J. | Sons of the Sacred Heart (Verona Fathers) |
| F.S.G.M. | Sisters of St. Francis of the Martyr St. George |
| F.S.M. | Franciscan Sisters of Mary |
| F.S.P.A. | Franciscan Sisters of Perpetual Adoration |
| F.S.S.J. | Franciscan Sisters of St. Joseph |
| F.S.S.P. | Priestly Fraternity of Saint Peter (Fraternitas SacerdotalisSancti Petri) |
| G |
| G.N.S.H. | Grey Nuns of the Sacred Heart |
| H |
| H.M. | Sisters of the Humility of Mary |
| I |
| I.B.V.M. | Institute of the Blessed Virgin Mary (Loreto Sisters) |
| I.C. | Institute of Charity (Rosminians) |
| I.C.M. | Missionary Sisters of the Immaculate Heart of Mary |
| I.C.R.S.S.. | Institute of Christ the King, High Priest |
| I.H.M. | Sisters, Servants of the Immaculate Heart of Mary |
| I.M.C. | Consolata Missionaries |
| I.V.E. | Institute of the Incarnate Word (Instituto del VerboEncarnado). Also abbreviated as "V.E." |
| I.W.B.S. | Sisters of the Incarnate Word and Blessed Sacrament |
| J |
| J.C.D. | Juris Canonici Doctor, Juris Civilis Doctor ("Doctor of CanonLaw", "Doctor of Civil Law") |
| J.C.L. | Licentiate in Canon Law |
| J..D. | Juris Doctor ("Doctor of Civil Law") |
| J.SS.R. | The Redemptorists Sisters of Saint Joseph (Josephite Sisters) |
| J.U.D. | Juris Utriusque Doctor ("Doctor of Both Laws" -- Civil andCanon) |
| J.U.L. | Juris Utriusque Licentiatus ("Licentiate of Both Laws") |
| |
| K.G.H.S. | Knight Grand Cross of the Holy Sepulchre |
| K.H.S. | Knight of the Holy Sepulchre |
| K.M. | Knights of Malta |
| K.P. | Knight of Pius IX |
| K.S.G. | Knight of St. Gregory |
| K.S.S. | Knight of St. Sylvester |
| L |
| L.B.S.F. | Little Brothers of St. Francis |
| L.C. | Legionaires of Christ |
| L.C.M. | Sisters of the Little Company of Mary |
| L.H.D. | Litterarum Humaniorum Doctor ("Doctor of Literature") |
| LL.B. | Legum Baccalaureus ("Bachelor of Laws") |
| LL.D. | Legum Doctor ("Doctor of Laws") |
| LL.M. | Legum Magister ("Master of Laws") |
| L.S.P. | Little Sisters of the Poor |
| |
| M.A. | Magister Artium ("Master of Arts") |
| M.Afr. | Missionaries of Africa |
| M.C. | Missionaries of Charity |
| M.C. | Consolata Missionaries Sisters |
| M.C.C.J. | Comboni Missionaries of the Heart of Jesus |
| M.C.D.P. | Missionary Catechists of Divine Providence |
| M.C.M. | Cordi Marian Sisters |
| M.C.S.T. | Missionary Catechists of St. Therese of the Child Jesus |
| M.F.I.C. | Missionary Franciscan of the Immaculate Conception |
| M.F.V.A. | Franciscan Missionaries of the Eternal Word |
| Mgr. | Monseigneur, Monsignore ("My Lord") |
| M.H.S.H. | Mission Helpers of the Sacred Heart |
| M.I. | Order of the Ministers of the Sick (Camillians) |
| M.I.C. | Marian Clerics of the Immaculate Conception of the BlessedVirgin Mary |
| M.J.C. | Militia Jesu Christi (Militia Christi, a Dominican ThirdOrder) |
| M.M.S. | Medical Mission Sisters |
| M.O.P. | Missionaries of the Poor |
| M.S. | Missionaries of Our Lady of LaSalette |
| M.S.A. | Missionaries of the Holy Apostles |
| M.S.B.T. | Missionary Servants of the Most Blessed Trinity |
| M.S.C. | Missionaries of the Sacred Heart |
| M.S.C.S. | Scalabrian Missionary Sisiters |
| M.S.F. | Missionaries of the Holy Family |
| M.S.F.S. | Missionaries of St. Francis de Sales (Fransalians) |
| M.S.S. | Missionaries of the Blessed Sacrament |
| M.SS.C. | Missionaries of the Sacred Hearts of Jesus and Mary |
| M.S.S.P. | Missionary Society of Saint Paul |
| M.S.U. | Congregation of Monks Studitas of Ukraine |
| M.T. | Missionary Servants of the Most Holy Trinity |
| |
| O.A.R. | Order of Augustinian Recollects (formerly O.R.S.A.) |
| O.C. | Order of the Carmelites |
| O.CARM. | Carmelites of Ancient Observance |
| O.Cart. | Order of the Carthusians |
| O.C.B.H. | Order ofCatholic Brother Hermits |
| O.CIST. | Cistercians (White Monks) |
| O.C.D. | Order of Discalced Carmelites |
| O.C.D.S. | Secular Order ofDiscalced Carmelites (Latin: Ordo Carmelitarum DiscalceatorumSaecularis). Formerly the Secular Order of Discalced Carmelites of theBlessed Virgin Mary of Mount Carmel and of the Holy Mother Saint Teresaof Jesus |
| O.C.S.O. | Order of Cistercians of the Strict Observance (Trappists andTrappistines) |
| O.de.M. | Order of Our Lady of Mercy (Mercedarians) |
| O.F.H. | Order ofFranciscan Hermits |
| O.F.M. | Order of Friars Minor (Franciscans) |
| O.F.M.Cap. | Order of Friars Minor Capuchins (Capuchins) |
| O.F.M.Conv. | Friars Minor Conventual (Conventual Franciscans) |
| O.F.M.I. | Franciscan Friars of Mary Immaculate |
| O.F.M.Reg. | Order of Friars Minor Regular |
| O.F.S. | SecularFranciscan Order (Latin: Ordo Franciscanus Saecularis); also called theThird Order Secular |
| O.H. | Hospitallers Brothers of St. John of God |
| O.L.M. | Order of Lebanese Maronite (Baladites) |
| O.L.M.E. | Our Lady's Missionaries of the Eucharist |
| O.L.V.M. | Victory Noll Sisters |
| O.M. | Minim Fathers |
| O.M.C. | Order of Merciful Christ |
| O.M.I. | Oblates of Mary Immaculate (Missionary Oblates) |
| O.M.M. | Work of Mary Mediatrix (Opus Mariae Mediatricis) |
| O.M.V. | Oblates of the Virgin Mary |
| O.P. | Order of Preachers (Ordo Praedicatorum) (Dominicans. Called"Blackfriars," also, especially in England) |
| O.Praem. | Canons Regular of Premontré (Norbertines or Premonstratensianor White Canons) |
| O.R.C. | Order of Canons Regular of the Holy Cross |
| O.R.S.A. | Augustinian Recollects |
| O.S. | Oblates of Wisdom |
| O.S.A. | Order of St. Augustine (Augustinians) |
| O.S.A. | Opus Sanctorum Angelorum |
| O.S.B. | Order of St. Benedict |
| O.S.B.M. | Order of St. Basil the Great (Basilian Order of St. Josaphat) |
| O.S.C. | Canons Regular of the Order of the Holy Cross (Crosiers) |
| O.S.Cam. | Order of St. Camillus (Camillian Fathers and Brothers) |
| O.S.F. | Congregation of Servants of Holy Infancy Jesus |
| O.S.F. | Franciscan Brothers or Sisters |
| O.S.F.N. | Confederation of the Oratory of Saint Philip of Neri(Oratorians) |
| O.S.F.S. | Oblates of St. Francis de Sales |
| O.S.F.S. | Order of St. Francis--Secular (3rd Order Franciscan) |
| O.S.J. | Oblates of St. Joseph |
| O.S.M. | Order of the Servants of Mary (Latin: Ordo Servorum BeataeMariae Virginis). Known as "Servites." |
| O.S.P.P.E. | Order of St. Paul the First Hermit (Pauline Fathers) |
| O.Ss.R.. | Congregation of the Most Holy Redeemer (CongregatioSanctissimi Redemptoris) (Redemptoristines) |
| O.Ss.S. | Order of St. Savior (or Order of Our Savior) (Ordo Ss.Salvatoris) (Brigittines) |
| O.Ss.T. | Order of the Holy Trinity (Trinitarians) |
| O.Ss.T. | Third order secular of the Most Holy Trinity |
| O.S.T.R. | Oblates of St. Therese Reformed |
| O.S.U. | Order of St. Ursula (Ursulines) |
| P |
| P.B.V.M. | Sisters of the Presentation of the Blessed Virgin Mary |
| P.C.C. | Poor Clare Collettines |
| P.C.P.A. | Poor Clares of Perpetual Adoration |
| Ph.B. | Philosophiae Baccalaureus ("Bachelor of Philosophy") |
| Ph.D. | Philosophiae Doctor ("Doctor of Philosophy") |
| P.H.J.C. | Poor Handmaids of Jesus Christ |
| P.M. | Sisters of the Presentation of Mary |
| Prof. | Professus, Professio, Professor ("Professed", "Profession","Professor") |
| P.S.S. | Society of Priests of Saint Sulpice (Sulpicians, in France)(see also "S.S.") |
| P.S.S.J. | Poor Sisters of St. Joseph-Hermanas |
| |
| R.A. | Religious of the Assumption |
| R.C. | Religious of the Cenacle |
| R.C.J | Rogationists of the Sacred Heart (Rogationists) |
| R.D.C. | Religious of Divine Compassion |
| R.G.S. | Religious of the Good Shepherd |
| R.J.M. | Religious of Jesus and Mary |
| R.M.I. | Religious of Mary Immaculate |
| R.N.D.M. | Sisters of Our Lady of the Missions (Religieuses de NotreDame Missions) |
| R.P. | Reverendus Pater, Reverend Pere ("Reverend Father") |
| R.S.C. | Religious Sisters of Charity |
| R.S.C.J. | Religious of the Sacred Heart of Jesus |
| R.S.H.M. | Religious of the Sacred Heart of Mary |
| R.S.M. | Sisters of Mercy |
| R.V.M. | Religious of the Virgin Mary |
| S |
| S.A. | Society of the Atonement (Franciscan Sisters/Brothers of theAtonement) |
| S.A.C. | Society of Catholic Apostolate (Pallotines) |
| S.A.R.F | SecularAugustinian Recollects |
| S.B.S. | Servants of the Blessed Sacrament |
| S.C. | Brothers of the Sacred Heart |
| S.C. | Servants of Charity |
| S.C. | Sisters of the Cross |
| S.C.C. | Sisters of Christian Charity |
| S.C.H. | Sisters of Charity |
| S.CH. | Society of Christ |
| SCH.P. | Clerics Regular of the Pious Schools (Piarist Fathers) |
| S.C.I. | Congregation of the Priests of the Sacred Heart (Dohonians) |
| S.C.J. | Congregation of the Priests of the Sacred Heart (Dehonians) |
| S.C.S.J.A. | Sisters of Charity of St. Joan Antida |
| S.D.B. | Salesians of Don Bosco |
| S.D.S. | Society of the Divine Savior (Salvatorians) |
| S.D.V. | Society of Divine Vocations (Vocationist Fathers) |
| S.F. | Sons of the Holy Family |
| S.F.C.C. | Sisters for Christian Community |
| S.F.O. | Secular Franciscan Order |
| S.G. | Brothers of Saint Gabriel |
| S.G.L. | Servants of the Gospel of Life |
| S.H.C.J. | Society of the Holy Child Jesus |
| S.H.F. | Sisters of the Holy Family |
| S.H.Sp. | Sisters of the Holy Spirit |
| S.I.W. | Sisters of the Incarnate Word and Blessed Sacrament |
| S.J. | Society of Jesus (Societatis Iesu) (Jesuits) |
| S.J.C. | Congrégation du Sacré-Coeur (Pères de Timon David) |
| S.L. | Sisters of Loreto |
| S.M. | Society of Mary (Marianists) |
| S.M. | Society of Mary (Marists) |
| S.M.A. | Society of African Missions |
| S.M.I. | Sisters of Mary Immaculate |
| S.M.M. | Missionaries of the Company of Mary (Montfort Fathers) |
| S.M.O.M. | Sovereign Military Order of Malta |
| S.M.S.M. | Marist Missionary Sister |
| S.N.D. | Sisters of Notre Dame |
| S.N.DdeN. | Sisters of Notre Dame de Namur |
| S.N.J.M. | Sisters of the Holy Names of Jesus and Mary |
| S.O.Cist. | Cistercians of the Common Observance |
| S.O.L.T. | Society of Our Lady of Most Holy Trinity |
| S.P. | Servants of the Holy Paraclete (Piarist Fathers) |
| S.P. | Sisters of Providence |
| S.P.S. | St. Patricks Missionary Society |
| S.S. | Society of St. Sulpice (the Sulpicians, outside of France) (see also "P.S.S.") |
| S.S.A. | Sisters of St. Ann |
| S.S.C. | Franciscan Servants of the Sacred Heart |
| SS.CC. | Congregation of the Sacred Hearts of Jesus and Mary (PicpusFathers) |
| S.S.Ch. | Sisters of Sainte Chretienne |
| S.S.C.J. | Sister Servants of the Most Sacred Heart of Jesus |
| S.S.C.M. | Servants of the Holy Heart of Mary |
| S.S.E. | Society of St. Edmund (Edmundites) |
| S.S.F. | Society of St. Francis |
| S.S.F.A. | Sisters of the Holy Family Associate |
| S.S.I. | Society of St. John (Societas Sancti Ioannis) |
| S.S.J. | St. Joseph's Society of the Sacred Heart (Josephites) |
| S.S.J. | Sisters of St. Joseph |
| S.S.J. | Society of St. John |
| S.S.J. (T.O.S.F) | Sisters of St. Joseph of the Third Order of St. Francis |
| S.S.J.C. | Society of Saint John Cantius |
| S.S.J.V. | Society of Saint John Vianney |
| S.S.M.I. | Sister Servants of Mary Immaculate |
| S.S.M.N. | Sisters of St. Mary of Namur |
| S.S.M.O. | Sisters of St. Mary of Oregon |
| S.S.N.D. | School Sisters of Notre Dame |
| S.S.P. | Society of St. Paul, Pauline Fathers and Brothers |
| S.Sp.S. | Holy Spirit Missionary Sisters |
| S.S.P.V. | Society of St. Pius V |
| S.S.P.X. | Society of St. Pius X |
| S.S.S. | Congregation of the Blessed Sacrament (Sacramentines) |
| S.S.S.F. | School Sisters of St. Francis |
| S.Ss.T. | Society of the Most Holy Trinity (Trinitarians) |
| S.S.V.M. | Servants of the Lord and the Virgin of Matara (Servidoras delSeñor y de la Virgen de Matará) |
| S.T. | Missionary Servants of Most Holy Trinity |
| S.T.B. | Sacrae Theologiae Baccalaureus ("Bachelor of SacredTheology") |
| S.T.D. | Sacred Theologiae Doctor ("Doctor of Sacred Theology") |
| S.T.L. | Sacrae Theologiae Licentiatus ("Licentiate of SacredTheology") |
| S.U. | Sisters of St. Ursula |
| S.V. | Sisters of Life (Sorores Vitae) |
| S.V.D. | Society of the Divine Word (Verbites) |
| S.X. | Xaverian Missionary Fathers (Xavierians) |
| |
| T.O.R. | Third Order Regular of St. Francis |
| T.O.S.F. | Tertiary of Third Order of St. Francis |
| V |
| V.E. | Institute of the Incarnate Word (Instituto del VerboEncarnado). Also abbreviated as "I.V.E." |
| V.S.C. | Vincentian Sisters of Charity |
| |
| W.F. | Missionaries of Our Lady of Africa of Algeria, orMissionaries of Africa (White Fathers or Pères Blancs) |
