| Saint | Date of birth | Date of death | Date of canonization | Notes |
| Aaron of Aleth | | | | Hermit |
| Audifax, and Abachum|Abachum] | | | | |
| Abadiu of Antinoe | | | | |
| Abamun of Tarnut | | | | Martyr |
| Abanoub | | | | Coptic child martyr |
| Abbán | unknown | c. 520 | | |
| Abo of Tiflis | unknown | | | Martyr |
| Abbo of Fleury | | | | Assisted Archbishop of Oswald |
| Abdas of Susa | 300s | 420 | | |
| Abdel Moati Massabki | | | | |
| Abdon | | | | |
| Abel of Reims | unknown | c. 751 | | |
| Abercius of Hieropolis | | | | |
| Aberoh and Atom | unknown | unknown | | Brothers |
| Abhor and Mehraela | unknown | unknown | | Brother and sister |
| Abibus of Edessa | 307 | 322 | | |
| Abra of Poitiers | | | | |
| Abraham Kidunaia | | | | |
| Abraham of Arbela | unknown | 345 | | |
| Abraham of Clermont | unknown | c. 479 | | |
| Abraham of Cratia | c. 474 | c. 558 | | |
| Abraham of Cyrrhus | c. 350 | 422 | | |
| Abraham of Rostov | | | | |
| Abraham of Smolensk | | | | |
| Abran | 500s | 500s | | |
| Abrosima | | | | |
| Absadah | | | | |
| Abudimus | | | | |
| Abundius | | | | |
| Acca of Hexham | c. 660 | c. 742 | | |
| Aceolus and Acius | unknown | c. 290 | | |
| Acepsimas of Hnaita | | | | |
| Acestes | unknown | c. 65 | | One of the soldiers who led Paul the Apostle to his death |
| Achillas of Alexandria | unknown | June 313 | | Patriarch of Alexandria |
| Nereus and Achilleus|Achilleus] | | | | |
| Achilleus Kewanuka | | | | One of the Uganda Martyrs |
| Achillius of Larissa | | | | |
| Acisclus | 200s | 304 | | |
| Adalard of Corbie | | | | |
| Adalbard | | | | |
| Adalbero II of Metz | | | | |
| Adalbero of Würzburg | | | | |
| Adalbert of Magdeburg | | | | Archbishop of Magdeburg |
| Adalbert of Prague | | | | His skull is preserved and kept in the Vitus Cathedral|St. Vitus cathedral] |
| Adalgar | | | | Archbishop of Bremen |
| Adalgott II of Disentis | | | | Bishop of Chur |
| Adamo Abate | | | | Professed religious of the Benedictines |
| Adauctus | | | | Martyred with Felix |
| Adela of Normandy | c. 1067 | 8 March 1137 | | Daughter of William the Conqueror |
| Adela of Pfalzel | unknown | 735 | | Sister of Irmina of Oeren |
| Adelaide of Italy | | | | Married layperson of the Archdiocese of Burgundy, queen of Italy and Burgundy, empress |
| Adelaide, Abbess of Vilich | | | | Professed religious of the Benedictine nuns |
| Adelelmus of Burgos | 1000s | 1100 | | |
| Adeloga of Kitzingen | unknown | c. 745 | | |
| Adheritus | 100s | unknown | | |
| Adjutor | | | | |
| Adolf of Osnabrück | | | | |
| Adolphus Ludigo-Mkasa | | | | One of the Uganda Martyrs |
| Adomnán | | | | |
| Adrian and Natalia of Nicomedia | 200s | 4 March 306 | | Husband and wife |
| Adrian of Canterbury | c. 630 | c. 710 | | |
| Adrian van Hilvarenbeek | | | | One of the Martyrs of Gorkum |
| Adulf | unknown | c. 680 | | |
| Aedesius of Alexandria | | | | |
| Ælfheah of Canterbury | | | | Archbishop of Canterbury, Bishop of Winchester |
| Ælfwold II | unknown | 1058 | | Bishop of Sherborne |
| Aelred of Rievaulx | 1110 | 12 January 1167 | | |
| Afan | unknown | 500s | | |
| Afra | | | | Virgin, martyr |
| Africus | 600s | 600s | | |
| Agabus | unknown | unknown | | |
| Agapitus | | | | |
| Agapius, Atticus, Carterius, Styriacus, Tobias, Eudoxius, Nictopolion, and companions | unknown | 315 | | |
| Agatha Kwon Chin-i | 1820 | 1840 | 1984 by Pope John Paul II | One of the Korean Martyrs |
| Agatha Lin | 1817 | 1858 | 2000 October 1 by Pope John Paul II | |
| Agatha of Sicily | | | | Martyr; patron saint of breast cancer patients, martyrs, wet nurses, bell-founders, bakers, fire, earthquakes, and eruptions of Mount Etna |
| Agatha Yi Kyong-i | 1814 | 1840 | 1984 May 6 by Pope John Paul II | One of the Korean Martyrs |
| Agathangelus of Rome | | | | |
| Agathius | | | | |
| Agathoclia | unknown | c. 230 | | |
| Agathon of Scetis | 300s | c. 435 | | |
| Agathonicus | 200s | 200s | | |
| Agathopodes | | | | |
| Agilbert | 600s | 600s | | |
| Agilberta | unknown | 680 | | |
| Agilulfus of Cologne | unknown | c. 750 | | |
| Agilus | | | | |
| Agnellus of Pisa | | | 1882 by Pope Leo XIII | |
| Agnes of Assisi | c. 1197 | 16 November 1253 | 1753 by Pope Benedict XIV | Younger sister of St. Clare of Assisi |
| Agnes of Bohemia | | | | |
| Agnes of Montepulciano | | | | |
| Agnes of Poitiers | unknown | 586 | | |
| Agnes of Rome | | | | Virgin, martyr |
| Agnes Tsao Kou Ying | 28 April 1821 | 1 March 1856 | 1 October 2000 by Pope John Paul II | |
| Agobard | | | | |
| Agostina Livia Pietrantoni | | | | She was killed by a patient she was taking care of |
| Agostino Roscelli | | | | |
| Agricius of Trier | | | | |
| Vitalis and Agricola|Agricola] | | | | |
| Agricola of Avignon | | | | |
| Agrippina of Mineo | | | | |
| Agrippinus of Naples | | | | |
| Agustín Caloca Cortés | | | | One of the Saints of the Cristero War |
| Aibert | | | | |
| Aichardus | | | | |
| Aidan of Lindisfarne | | | | |
| Aignan of Orleans | | | | |
| Ailbe of Emly | | | | |
| Aileran | unknown | 29 December 664 or 665 | | |
| Aimo | unknown | 1173 | | |
| Alban | | | | |
| Alban of Mainz | 300s | 400s | | |
| Alban Roe | | | | One of the Forty Martyrs of England and Wales |
| Alberic Crescitelli | 30 June 1863 | 21 July 1900 | 1 October 2000 by Pope John Paul II | One of the Martyrs of China |
| Alberic of Cîteaux | | | | |
| Alberic of Utrecht | unknown | 21 August 784 | | |
| Albert Chmielowski | | | | |
| Albert of Genoa | unknown | 1239 | | |
| Albert of Louvain | | | | Murdered by three German knights shortly after becoming Bishop of Liège and regarded as a martyr afterwards. |
| Albert of Montecorvino | unknown | 1127 | | |
| Albert of Trapani | | | | |
| Albert of Vercelli | | | | Also known as Albert of Jerusalem |
| Alberto Hurtado Cruchaga | | | | |
| Albertus Magnus | | | | |
| Albinus of Angers | c. 470 | 550 | | Invoked against pirate attacks |
| Alchmund of Hexham | unknown | 7 September 780 or 781 | | |
| Alcuin | | | | Played an important role in the development of the Carolingian minuscule |
| Aldebrandus | | | | Bishop of Fossombrone |
| Aldegund | | | | |
| Aldhelm | | | | |
| Alena | | | | |
| Alexander | | | | |
| Alexander I of Alexandria|Alexander I of Alexandria] | | | | Pope of Alexandria |
| Alexander Briant | | | | One of the Forty Martyrs of England and Wales |
| Alexander of Comana | unknown | | | |
| Alexander of Constantinople | | | | Archbishop of Constantinople |
| Alexander of Jerusalem | | | | |
| Alexander Sauli | | | | |
| Alexis Falconieri | | | | One of the Seven Holy Founders of the Servite Order |
| Alexius of Rome | | | | |
| Alfonso Maria Fusco | | | | |
| Alfonso Rodríguez Olmedo | | | | |
| Alice of Schaerbeek | c. 1220 | | | |
| Alkmund of Derby | | | | Killed by Eardwulf of Northumbria |
| Almus | unknown | | | |
| Alonso de Orozco Mena | | | | |
| Aloysius Gonzaga | | | | |
| Alphonsa | | | | She was the first woman of Indian origin to be canonised as a saint by the Catholic Church |
| Alphonsus Liguori | | | | Doctor of Church |
| Alphonsus Rodriguez | | | | |
| Alto of Altomünster | unknown | | | |
| Alypius of Thagaste | | | | |
| Amabilis of Riom | unknown | | | |
| Amadio degli Amidei | | | | One of the Seven Holy Founders of the Servite Order |
| Amalberga of Maubreuge | | | | |
| Amalberga of Temse | | | | |
| Amandus | | | | |
| Amantius of Como | | | | |
| Amata of Assisi | | | | |
| Amato Ronconi | | | | |
| Amator | | | | |
| Amatus | | | | |
| Ambrose Barlow | | | | One of the Forty Martyrs of England and Wales |
| Ambrose of Alexandria | | | | |
| Ambrose of Milan | | | | |
| Ambrósio Francisco Ferro | unknown | 3 October 1645 | 15 October 2017 by Pope Francis | |
| Ambrosio Kibuuka | | | | One of the Uganda Martyrs |
| Ampelus | | | | |
| Amphibalus | | | | |
| Amun | | | | |
| Amunia of San Millán | unknown | 1069 | | |
| Ananias of Damascus | unknown | unknown | | Disciple of Jesus |
| Anastasia | | | | |
| Anastasia of Sirmium | | | | |
| Anastasia the Patrician | 500s | 500s | | |
| Anastasius of Antioch | | | | |
| Anastasius of Pavia | | | | |
| Anastasius of Persia | | | | |
| Anastasius of Suppentonia | | | | |
| Anastasius Sinaita | | | | |
| Anastasius the Fuller | | | | |
| | | | One of the Uganda Martyrs |
| Anatolia, and Audax|Anatolia] | | | | |
| Anatolius of Laodicea | | | | Invented the first Metonic 19-year lunar cycle in the 270s |
| André Bessette | | | | |
| André de Soveral | c. 1572 | 16 July 1645 | 15 October 2017 by Pope Francis | |
| André-Hubert Fournet | | | | Priest of the Diocese of Poitiers; founder of the Sisters of the Cross |
| Andrea Dotti | | | | |
| Andrew Avellino | | | | |
| Andrew Bobola | | | | Professed priest of the Jesuits; martyr |
| Andrew Corsini | | | | |
| Andrew Dũng-Lạc | 1795 | 21 December 1839 | 19 June 1988 by Pope John Paul II | One of the Vietnamese Martyrs |
| Andrew Kaggwa | | | | One of the Uganda Martyrs |
| Andrew Kim Taegon | 21 August 1821 | 16 September 1846 | 6 May 1984 by Pope John Paul II | One of the Korean Martyrs |
| Andrew of Crete | | | | |
| Andrew of Trier | unknown | 235 | | |
| Andrew Stratelates | 200s | 300 | | |
| Andrew the Apostle | | | | |
| Andrew the Scot | 800s | c. 877 | | |
| Andrew Wouters | | | | One of the Martyrs of Gorkum |
| Andrew Zorard | | | | |
| Probus, and Tarachus|Andronicus] | | | | |
| Angadrisma | 600s | c. 695 | | |
| Angela Merici | | | | |
| Angela of Foligno | | | | Her canonization was an "equivalent canonization". |
| Angela of the Cross | | | | Founder of the Institute of the Sisters of the Company of the Cross |
| Angelelmus | unknown | 828 | | Bishop of Auxerre |
| Angelus of Jerusalem | | | | |
| Angilbert | | | | |
| Anianus of Alexandria | | | l | |
| Aniceto Adolfo | | | | One of the Martyrs of Turon |
| Anna Maria Rubatto | | | | |
| Anna Pak Agi | 1783 | 24 May 1839 | 6 May 1984 by Pope John Paul II | One of the Korean Martyrs |
| Anna Schäffer | | | | |
| Anna the Prophetess | | | | |
| Anna Wang | 1886 | 22 July 1900 | 1 October 2000 by Pope John Paul II | One of the Chinese Martyrs |
| Anne | | | | |
| Anne Line | | | | One of the Forty Martyrs of England and Wales |
| Anne-Marie Rivier | | | | |
| Annibale Maria di Francia | | | | |
| Anno II | | | | |
| Ansanus | | | | |
| Ansbert | unknown | c. 695 | | |
| Ansegisus | c. 770 | 20 July 833 or 834 | | |
| Anselm of Canterbury | | | | |
| Anselm of Lucca | | | | |
| Ansfried of Utrecht | | | | |
| Ansgar | | | | |
| Ansovinus | | | | |
| Anstrudis | unknown | | | |
| Ansurius | | | | |
| Antanansio Bazzekuketta | | | | One of the Uganda Martyrs |
| Anthelm of Belley | | | | |
| Anthimus of Nicomedia | | | | |
| Anthimus of Rome | | | | |
| Anthony Dainan | | | | One of the 26 Martyrs of Japan |
| Anthony Maria Zaccaria | | | | |
| Mary Claret">Mary, mother of Jesus">Mary Claret | | | | |
| Anthony of Antioch | | | | |
| Anthony of Hoornaar | | | | One of the Martyrs of Gorkum |
| Anthony of Padua | | | 30 May 1232, Spoleto, Italy by Pope Gregory IX | Portuguese catholic priest and member of the order of friars minor, proclaimed a Doctor of the Church by Pope Pius XII on 16 January 1946. |
| Antoninus of Florence | | | | |
| Anthony of St. Ann Galvão | | | | First Brazilian saint. Professed priest of the Franciscan Friars Minor. |
| Anthony of Weert | | | | One of the Martyrs of Gorkum |
| Anthony the Great | | | | |
| Anthony the Hermit | | | | |
| Anthusa of Constantinople | 750 or 757 | 801 or 808 | | Daughter of Constantine V |
| Antia of Illyria | | | | |
| Antiochus of Sulcis | | | | |
| Antipas of Pergamum | | | | |
| Antoine Daniel | | | | One of the Canadian Martyrs |
| Anthony of Kiev | | | found in Roman Martyrology | Russian Orthodox saint, founder of the Kiev Pechersk Lavra. |
| Antoninus of Pamiers | unknown | unknown | | |
| Antoninus of Piacenza | | | | |
| Antoninus of Rome | | | | |
| Antoninus of Sorrento | 555 or 556 | 625 | | |
| Antonio Gonzalez | | | | One of the 16 Martyrs of Japan |
| Antonio Maria Gianelli | | | | Bishop of Bobbio; founder of the Daughters of Our Lady of the Garden |
| Antonio Maria Pucci | | | | |
| Antonio of Tlaxcala | | | | One of the Child Martyrs of Tlaxcala |
| Anysia of Salonika | | | | |
| Aphian | c. 287 | c. 305 | | |
| Aphrahat | | | | |
| Aphrodisius | | | | Priest of the Diocese of Béziers, martyr |
| Apollinaris Claudius | | | | |
| Apollinaris of Ravenna | | | | |
| Apollinaris of Valence | c. 453 | c. 520 | | |
| Apollinaris Syncletica | unknown | 420 | | |
| Apollonia | | | | |
| Apollonius the Apologist | | | | |
| Apollos | 0s | 0s | | |
| Apphia | | | | |
| Apronia of Toul | 500s | 500s | | |
| Aprus of Toul | 600s | 15 September 507 | | |
| Aquila | 0s | 0s | | listed among the Seventy Disciples |
| Aquilina | 281 | 13 June 293 | | Child martyr |
| Aquilinus of Évreux | | | | |
| Aquilinus of Fossombrone | | | | |
| Aquilinus of Milan | unknown | 1015 | | |
| Arbogast | unknown | c. 678 | | |
| Arcadius of Bourges | unknown | 549 | | |
| Arcadius of Mauretania | | | | |
| Arcangelo Tadini | | | | |
| Archippus | | | | |
| Aredius | | | | |
| Arethas | unknown | c. 523 | | |
| Argeus of Tomi | | | | |
| Ariadne of Phrygia | | | | |
| Arialdo | | | | |
| Arilda of Oldbury | unknown | | | |
| Aristides of Athens | unknown | unknown | | |
| Aristobulus of Britannia | unknown | 0s | | First Bishop of Roman Britain |
| Armogastes | unknown | after 460 | | |
| Arnold Janssen | | | | |
| Arnold of Arnoldsweiler | 700s | 700s | | |
| Arnold of Soissons | | | | |
| Arnulf of Metz | c. 582 | c. 647 | | |
| Arsenius the Great | c. 350 | 445 | | Desert Father |
| Artaldus | 1101 | 1206 | | |
| Artémides Zatti | | | | |
| Artemius | unknown | 362 | | |
| Arthelais | 544 | 560 | | |
| Asaph | | | | |
| Ascelina | 1121 | 1195 | | |
| Asclepiades of Antioch | unknown | 217 | | |
| Asella | c. 334 | c. 406 | | |
| Aspren | | | | |
| Assicus | unknown | c. 490 | | St. Patrick's coppersmith |
| Asteria of Bergamo | | | | |
| Asterius of Amasea | | | | |
| Asterius of Petra | | | | |
| Astius | | | | Bishop of Dyrrachium |
| Athanasia of Aegina | | | | |
| Athanasius I | | | | |
| Athanasius of Alexandria | | | | |
| Athanasius the Athonite | c. 920 | c. 1003 | | |
| Athelm | unknown | 8 January 926 | | |
| Athracht | 500s | 500s | | |
| Atilano Cruz Alvarado | | | | One of the Saints of the Cristero War |
| Attala | unknown | 622 | | |
| Attilanus | | | | |
| Audax | | | | |
| Audifax | | | | |
| Audoin | 609 | 24 August 684 | | |
| Augulus | unknown | unknown | | |
| Augusta of Treviso | unknown | unknown | | |
| Auguste Chapdelaine | 6 January 1814 | 29 February 1856 | | |
| Augustine of Canterbury | | | | Founder of the English church. First Archbishop of Canterbury A stone memorial, the St Augustine's Cross, was erected in Kent 1884, at the location where local legend recounted that St. Augustine first met King Ethelbert. |
| Augustine of Hippo | | | | |
| Augustine Webster | | | | One of the Forty Martyrs of England and Wales |
| | | | One of the Martyrs of Turon |
| Aurea of Ostia | unknown | 200s | | |
| Aurea of Paris | unknown | 666 | | |
| Áurea of San Millán | | | | |
| Aurelian of Limoges | unknown | unknown | | |
| Aurelius of Carthage | unknown | 20 July 429 | | |
| Aurelius of Cordoba | unknown | | | Among the Martyrs of Cordoba |
| Aureus of Mainz | unknown | 16 June 436 or 451 | | |
| Auspicius of Trier | | | | |
| Austrebertha | 630 | 10 February 704 | | |
| Austregisilus | unknown | 624 | | |
| Austromoine | 200s | 200s | | |
| Autonomus | | | | |
| Auxentius of Bithynia | c. 400 | 14 February 473 | | |
| Auxentius of Mopsuestia | unknown | 360 | | |
| Aventinus of Tours | unknown | 1180 | | |
| Avilius of Alexandria | unknown | 11 September 95 | | Patriarch of Alexandria |
| Avitianus | unknown | 325 | | |
| Avitus of Vienne | c. 450 | between 517-519 | | |
| Aye | unknown | c. 711 | | |
| Aymard of Cluny | unknown | 965 | | |
| Babylas of Antioch | unknown | 253 | | |
| Bacchus | | | | |
| Bademus | | | | |
| Baithéne mac Brénaind | c. 534 | c. 596-598 | | |
| Balbina of Rome | | | | |
| Balderic of Montfaucon | | | | |
| Baldred of Tyninghame | unknown | | | |
| Baldwin of Rieti | unknown | | | |
| Balthild of Chelles | | | | |
| Baradates | unknown | | | |
| Barbara | | | | |
| Barbatus of Benevento | c. 610 | 682 | | |
| Barhadbesciabas | unknown | 20 July 355 | | |
| Barlaam | unknown | unknown | | |
| Barnabas | | | | |
| Barsanuphius | unknown | c. 545 | | |
| Barsimaeus | unknown | 114 | | |
| Bartholomew of Braga | | | | |
| Bartholomew of Farne | unknown | 1193 | | |
| Bartholomew the Apostle | | | | |
| Bartolomea Capitanio | | | | Cofounder of the Sisters of Charity of Saints Bartolomea Capitanio and Vincenzo Gerosa |
| Barulas | | | | |
| Basil of Amasea | | | | |
| Basil of Ancyra | | | | |
| Basil of Caesarea | | | | |
| Basil the Elder | | | | |
| Basilides | | | | |
| Basiliscus of Comana | 200s | c. 310 | | |
| Basilissa | | | | |
| Basilla of Rome | unknown | 257 | | |
| Bassianus of Lodi | c. 320 | c. 413 | | |
| Baudolino | c. 700 | c. 740 | | |
| Bavo of Ghent | | | | |
| Beatrice of Silva | | | | |
| Faustinus and Beatrix|Beatrix] | | | | |
| Beatus of Liébana | c. 750 | c. 800 | | |
| Beatus of Lungern | unknown | c. 112 | | |
| Bécán | 400s | 500s | | |
| Bede | | | | Also known as the Venerable Bede |
| Bega | unknown | unknown | | |
| Begga | 615 | 17 December 693 | | |
| Belina | | | | |
| Bellinus of Padua | | | | |
| Benedetta Cambiagio Frassinello | | | | Founder of the Benedictine Sisters of Providence |
| Benedict Biscop | c. 628 | 12 January 690 | | |
| Benedict dell'Antella | | | | One of the Seven Holy Founders of the Servite Order |
| Joseph Labre">Saint Joseph">Joseph Labre | | | | |
| Benedict Menni | | | | |
| Benedict of Aniane | | | | |
| Benedict of Cagliari | unknown | 1112 | | |
| Benedict of Nursia | | | | |
| Benedict of Szkalka | | | | |
| Benedict the Moor | | | | |
| Bénézet | | | | Patron saint of Avignon, bachelors, and bridge-builders; constructed the Pont Saint-Bénézet bridge |
| Benignus of Armagh | 392 | 467 | | |
| Beningnus of Dijon | 200s | 200s | | |
| Benignus of Todi | | | | |
| Benildus Romançon | | | | |
| Benjamin | 329 | c. 424 | | |
| | | | One of the Martyrs of Turon |
| Benno | | | | |
| Benvenutus Scotivoli | | | | |
| Berard of Carbio | | | | |
| Berardo | 1000s | 19 December 1123 | | |
| Bercharius of Hautvillers | 636 | 28 March 696 | | |
| Berhtwald | unknown | 731 | | |
| Berlinda of Meerbeke | unknown | c. 702 | | |
| Bernadette Soubirous | | | | |
| Bernard degli Uberti | | | | |
| Bernard of Carinola | unknown | 1109 | | |
| Bernard of Clairvaux | | | | Reformer of the Cistercian Order |
| Bernard of Corleone | | | | |
| Bernard of Menthon | | | | Professed religious of the Canons Regular of Saint Augustine |
| Bernard of Valdeiglesias | unknown | | | |
| Bernard Vũ Văn Duệ | 1755 | 1 August 1838 | 19 June 1988 by Pope John Paul II | One of the Martyrs of Vietnam |
| Bernardino of Siena | | | | |
| Bernard of Thiron | 1046 | 14 April 1117 | | |
| Bernardino Realino | | | | Professed priest of the Jesuits |
| Bernardo Tolomei | | | | |
| Bernat Calbó | | | | |
| Bernward of Hildesheim | | | | |
| Bertha of Bingen | | | | |
| Bertha of Val d'Or | unknown | 690 | | |
| Bertharius of Monte Cassino | c. 810 | 22 October 883 | | |
| Berthold of Parma | unknown | 1111 | | |
| Bertilia | unknown | 687 | | |
| Bertin | c. 615 | c. 709 | | |
| Bertrand of Comminges | | | | |
| Bertulf of Bobbio | unknown | 640 | | |
| Beuno | | | | Also known as Bono |
| Bibiana | | | | |
| Birillus | | | | |
| Birinus | c. 600 | 3 December 649 or 650 | | |
| Blaesilla | 364 | 384 | | |
| Blaise | | | | |
| Blandina | | | | |
| Blane | unknown | 590 | | |
| Blathmac | c. 750 | c. 825 | | |
| Bodfan | 600s | unknown | | |
| Boethius | | | | |
| Boisil | unknown | 7 July 664 | | |
| Bonaventure | | | | |
| Bonaventure of Miyako | | | | One of the 26 Martyrs of Japan |
| Bonfilius | 1040 | 1125 | | |
| Boniface | | | | |
| Boniface of Brussels | | | | |
| Boniface of Tarsus | | | | |
| Bonifacia Rodríguez y Castro | | | | |
| Bononio | | | | |
| Boris | | | | |
| Bosa of York | unknown | c. 705 | | |
| Botulph of Thorney | 600s | 680 | | |
| Brannoc of Braunton | 500s | unknown | | |
| Branwalator | unknown | unknown | | |
| Bregowine | unknown | August 764 | | |
| Brendan of Birr | unknown | c. 573 | | |
| Brendan the Navigator | c. 484 | c. 577 | | |
| Bretannio | | | | |
| Brice of Tours | | | | |
| Bridget of Sweden | | | | |
| Brigid of Kildare | | | | |
| Brinolfo Algotsson | | | | |
| Brioc | 400s | c. 502 | | |
| Britta | | | | |
| Britto of Trier | | | | |
| Brocard | unknown | 1231 | | |
| Brónach | 500s | 500s | | |
| Bruno of Cologne | | | | |
| Bruno of Querfurt | | | | |
| Bruno of Saxony | c. 830 | 2 February 880 | | |
| Bruno of Segni | | | | |
| Bruno of Würzburg | | | | |
| Bruno the Great | | | | |
| | | | One of the Uganda Martyrs |
| Brynach | unknown | | | |
| Brynoth | unknown | | | |
| Budoc | | | | |
| Buonfiglio Monaldi | | | | One of the Seven Holy Founders of the Servite Order |
| Buriana | | | | |
| Cadfan | unknown | | | |
| Cadoc | | | | |
| Cædmon of Whitby | | | | |
| Caesaria the Elder | | | | |
| Caesarius of Arles | | | | |
| Caesarius of Nazianzus | | | | |
| Caesarius of Terracina | unknown | 200s | | |
| Caillín | 400s | unknown | | |
| Cainnech of Aghaboe | | | | |
| Caius of Milan | | | | |
| Caius of Saragossa | | | | |
| Cajetan | | | | |
| Calepodius | unknown | 232 | | |
| Calimerius | unknown | 280 | | |
| Callistus Caravario | 18 June 1903 | 25 February 1930 | 1 October 2000 by Pope John Paul II | |
| Calminius | unknown | 500s or 600s | | |
| Calocerus | | | | |
| Calogerus the Anchorite | c. 466 | 561 | | |
| Camilla Battista da Varano | | | | |
| Camillus de Lellis | | | | |
| Candida Maria of Jesus | | | | |
| Candida the Elder | | | | |
| Candidus | 200s | c. 287 | | |
| Canius | | | | |
| Cantius, Cantianus, and Cantianilla | unknown | c. 304 | | |
| Canute IV of Denmark | | | | |
| Canute Lavard | | | | |
| Caprasius of Agen | | | | |
| Caprasius of Lérins | unknown | 430 | | |
| Caradoc | unknown | 1124 | | |
| Caraunus | 400s | unknown | | |
| Carlo Acutis | | | | |
| Carmelo Bolta Bañuls | | | | |
| Carmen Salles y Barangueras | | | | |
| Carolina Santocanale | | | | |
| Carpus of Beroea | | | | |
| Carthage the Elder | unknown | 500s | | |
| Casilda of Toledo | 950 | 1050 | | |
| Casimir | | | | |
| Cassian of Autun | unknown | c. 350 | | |
| Cassian of Imola | | | | |
| Cassian of Tangier | 200s | 298 | | |
| Cassius of Clermont | 200s | c. 264 | | |
| Cassius of Narni | unknown | 558 | | |
| Castor of Apt | 300s | c. 420 | | |
| Castor of Karden | | | | |
| Castritian | | | | Bishop of Milan |
| Castulus | | | | |
| Catald of Taranto | 7th century | 685 | | |
| Catellus of Castellammare | unknown | 800s | | |
| Caterina Volpicelli | | | | |
| Cathan | unknown | unknown | | |
| Catherine Labouré | | | | |
| Catherine of Alexandria | | | | |
| Catherine of Bologna | | | | |
| Catherine of Genoa | | | | |
| Catherine of Palma | | | | |
| Catherine of Ricci | | | | |
| Catherine of Siena | | | | |
| Catherine of Vadstena | | | | |
| Cedd | | | | |
| Cecilia | | | | |
| Cellach of Armagh | 1080 | 1129 | | |
| Celsus | | | | |
| Cermanus | | | | |
| César de Bus | | | | |
| Cessianus | | | | |
| Chad of Mercia | | | | |
| Charbel | | | | |
| Charbel Makhlouf | | | | |
| Charles Borromeo | | | | |
| Charles de Foucauld | | | | |
| Charles Garnier | | | | One of the Canadian Martyrs |
| Charles Lwanga | | | | One of the Uganda Martyrs |
| Charles of Mount Argus | | | | |
| Charles of Sezze | | | | Professed priest of the Franciscan Friars Minor |
| Chelidonia | | | | |
| Christian of Clogher | | | | |
| Christina of Bolsena | | | | |
| Christopher | | | | |
| Chrysogonus | | | | |
| Ciarán of Clonmacnoise | | | | |
| Ciarán of Saigir | | | | |
| | | | One of the Martyrs of Turon |
| Clare of Assisi | | | | |
| Clare of Montefalco | | | | |
| Clateus | | | | |
| Claude de la Colombière | | | | |
| Claudine Thévenet | | | | Founder of the Religious of Jesus and Mary |
| Claudius of Besançon | | | | |
| Clelia Barbieri | | | | |
| Clement Mary Hofbauer | | | | Professed priest of the Redemptorists |
| Clement of Ancyra | | | | |
| Clement of Ohrid | | | | |
| Cleopatra | | | | |
| Clotilde | | | | |
| Colette of Corbie | | | | |
| Colman mac Duagh | | | | |
| Colmán of Cloyne | | | | |
| Coloman of Stockerau | | | | |
| Columban | | | | |
| Concordius of Spoleto | | | | |
| Conrad of Constance | | | | |
| Conrad of Parzham | | | | |
| Conrad of Piacenza | | | | |
| Constantine the Great | | | | Constantine is not recognized as a canonized saint by the Roman Catholic Church, although he is in many other churches. |
| Constantius of Perugia | | | | |
| Corbinian | | | | |
| Corebus | | | | |
| Cornelius of Wijk bij Duurstede | | | | One of the Martyrs of Gorkum |
| Cosmas and Damian|Cosmas] | | | | |
| Cosmas Takeya | | | | One of the 26 Martyrs of Japan |
| Crescentian | | | | |
| Crescentinus | | | | |
| Crescentius of Rome | | | | |
| Crescentius of Saragossa | | | | |
| Crispin of Viterbo | | | | Professed priest of the Franciscan Capuchins |
| Cristóbal Magallanes Jara | | | | One of the Saints of the Cristero War |
| Cristobal of Tlaxcala | | | | One of the Child Martyrs of Tlaxcala |
| Cunibert | | | | |
| Cunigunde of Luxembourg | | | | Empress |
| Cuthbert | | | | |
| Cuthbert Mayne | | | | One of the Forty Martyrs of England and Wales |
| Cyprian | | | | |
| Cyriacus | | | | |
| Cyriacus of Satala | | | | |
| Cyril and Methodius|Cyril] | | | | |
| Cyril of Alexandria | | | | |
| Cyril of Jerusalem | | | | |
| Cyrinus of Rome | | | | |
| Dabheog | | | | |
| Dalmatius of Pavia | | | | |
| Damian | | | | |
| Damien of Molokai | | | | Known for his work with people with leprosy in a settlement on the Kalaupapa Peninsula of Molokai. |
| Daniel and Companions | | | | |
| Daniel of Padua | | | | |
| Daniele Comboni | | | | |
| Darerca of Ireland | | | | |
| Darius | | | | |
| Dathus | | | | Bishop of Ravenna |
| David | | | | |
| David Galván Bermúdez | | | | One of the Saints of the Cristero War |
| David Lewis | | | | One of the Forty Martyrs of England and Wales |
| David of Munktorp | | | | |
| David Roldán Lara | | | | One of the Saints of the Cristero War |
| David the Dendrite | | | | |
| | | | One of the Saints of the Cristero War |
| Demetrius of Thessaloniki | | | | |
| Denis of Paris|Denis] | | | | Bishop of Paris |
| Denis Ssebuggwawo Wasswa | | | | One of the Uganda Martyrs |
| | | | Companion of Nicholas Tavelic |
| Deodatus of Nevers | | | | |
| Devasahayam Pillai | | | | |
| Devota | | | | |
| Didacus of Alcalá | | | | |
| Didymus of Alexandria | | | | |
| Diodorus of Tarsus | | | | |
| Diomedes of Tarsus | | | | |
| Dionysius of Alexandria | | | | |
| Dionysius of Corinth | | | | |
| Dionysius of Vienne | | | | |
| Dionysius the Areopagite | | | | |
| Dismas | | | | |
| Domingo Ibáñez de Erquicia | | | | One of the 16 Martyrs of Japan |
| Dominic de Guzmán | | | | |
| Dominic de la Calzada | | | | |
| Dominic of Silos | | | | |
| Dominic Savio | | | | |
| Domitian of Carantania | 700s | 802 | | Duke of Carantania |
| Domnius | 200s | 304 | | |
| Donatus of Euroea | | | | |
| Donatus of Fossombrone | | | | |
| Dorothea of Alexandria | | | | |
| Dorothea of Caesarea | | | | |
| Dorothea of Montau | | | | |
| Drogo | | | | |
| Dubricius | | | | |
| Dymphna | | | | born in Ireland; died in Geel, Belgium |
| Edith Stein | | | | Also known as Teresa Benedicta of the Cross |
| Edmund Arrowsmith | | | | One of the Forty Martyrs of England and Wales |
| Edmund Campion | | | | One of the Forty Martyrs of England and Wales |
| Edmund Gennings | | | | One of the Forty Martyrs of England and Wales |
| Edmund of Abingdon | | | | |
| Edward the Confessor | | | | |
| Edward the Martyr | | | | |
| Egidio Maria of Saint Joseph | | | | Professed priest of the Franciscan Friars Minor |
| Elena Guerra | | | | |
| Eleuchadius | | | | Bishop of Ravenna |
| Eleutherius of Illyria | | | | |
| Elias of Palestine | | | | |
| Elizabeth Ann Seton | | | | First citizen born in the U.S. to be declared a saint. Widow; Founder of the Daughters of Charity of Saint Vincent de Paul in the United States, the Sisters of Charity of Cincinnati, the Sisters of Charity of Seton Hill, the Sisters of Charity of Saint Vincent de Paul of Halifax, the Sisters of Charity of Saint Vincent de Paul of New York, and the Sisters of Charity of Saint Elizabeth of New Jersey |
| Elizabeth Hesselblad | | | | |
| Elizabeth of Hungary | | | | Patron saint of the homeless, blessed by St. Francis of Assisi, associated with the Third Order of St. Francis, first saint associated with roses through the miracle of the roses |
| Elizabeth of Portugal | | | | |
| Elizabeth of the Trinity | | | | |
| Eluned | c. 468 | 400s | | |
| Elzéar of Sabran | | | | |
| Emerentiana | | | | |
| Emeric of Hungary | | | | |
| Émilie de Rodat | | | | Founder of the Sisters of the Holy Family of Villefranche |
| Émilie de Villeneuve | | | | |
| Emily de Vialar | | | | |
| Emma of Lesum | | | | |
| Emygdius | | | | |
| Engelbert Kolland | | | | |
| Engratia | | | | |
| Enrique de Ossó i Cervelló | | | | |
| Ephrem the Syrian | | | | |
| Epimachus | | | | |
| Epiphanius of Salamis | | | | |
| Epitacius | | | | |
| Erasmus of Formia | | | | |
| Erhard of Regensburg | | | | |
| Eric IX of Sweden | | | | |
| Erlembald | | | | |
| Eucherius of Lyon | | | | |
| Eudokia of Heliopolis | | | | |
| Eugendus | | | | |
| Eugène de Mazenod | | | | |
| Eugénie d'Alsace | Unknown | 735 | | |
| Eugenius II of Toledo | | | | |
| Eulalia of Mérida | | | | |
| Euphemia | | | | |
| Euphrasia Eluvathingal | | | | |
| Euphrosyne of Alexandria | | | | |
| Euprepius of Verona | | | | |
| Pope Eusebius | 3rd century | 17 Aug 310 | | |
| Eusebius of Rome | 4th century | 357 | | |
| Eusebius of Vercelli | | | | |
| Eustace | | | | Martyr and soldier |
| Eustace White | | | | One of the Forty Martyrs of England and Wales |
| Eustathius of Antioch | | | | |
| Eustochia Smeralda Calafato | | | | |
| Eutropius of Orange | | | | |
| Evellius | | | | |
| Evodius | | | | |
| Exuperius | | | | |
| Ezequiél Moreno y Díaz | | | | |
| Fabiola | | | | |
| Fabius | | | | |
| Fanchea | | | | |
| Faustina Kowalska | | | | |
| Faustinus | | | | |
| Faustinus of Rome | | | | |
| Faustus of Milan | | | | |
| Felician | | | | |
| Felicissimus | | | | |
| Felicitas of Rome | | | | |
| Felicity | | | | See also Perpetua, Saint Felicitas, and their Companions">Perpetua and Felicity">Perpetua, Saint Felicitas, and their Companions |
| Felicula | | | | |
| Felix | 200s | 303 | | Martyred with Adauctus |
| Felix | | | | |
| Felix II | | | | |
| Felix of Cantalice | | | | |
| Felix of Nicosia | | | | Professed religious of the Franciscan Capuchins |
| Felix of Nola | | | | |
| Felix of Valois | | | | |
| Ferdinand III of Castile | | | | |
| Fidelis of Sigmaringen | | | | |
| Filippo Smaldone | | | | |
| Finbarr of Cork | | | | |
| Finnian of Clonard | | | | |
| Fintan of Clonenagh | | | | |
| Fintán of Taghmon | | | | Bishop and hermit |
| Firmina | | | | |
| Firminus of Satala | | | | |
| Firmus of Satala | | | | |
| Flavia Domitilla | | | | |
| Flavius Latinus of Brescia | | | | |
| Flora of Córdoba | | | | |
| Florentius of Vienne | | | | Bishop of Vienne |
| Florian | | | | |
| Fortunatus of Naples | | | | |
| Fortunatus of Spoleto | | | | |
| Franca Visalta | | | | |
| Frances of Rome | | | | Married layperson of the Vicariate of Rome |
| Frances Xavier Cabrini | | | | First U.S. citizen to be canonized See also Elizabeth Ann Seton the first born U.S. citizen to be canonized. |
| Francesco Maria da Camporosso | | | | |
| Francesco Spinelli | | | | |
| Francis Borgia | | | | |
| Francis Caracciolo | | | | |
| Francis de Geronimo | | | | |
| Francis de Sales | | | | |
| Francis Fasani | | | | Professed priest of the Franciscan Conventuals |
| | | | One of the 26 Martyrs of Japan |
| Francis Massabki | | | | |
| Francis of Assisi | | | | Italian Roman Catholic friar and preacher |
| | | | One of the 26 Martyrs of Japan |
| Francis of Paola | | | | |
| Francis of Roye | | | | One of the Martyrs of Gorkum |
| Francis of Saint Michael | | | | One of the 26 Martyrs of Japan |
| | | | One of the 16 Martyrs of Japan |
| Francis Solanus | | | | |
| Francis Xavier | | | | |
| Francis Xavier Bianchi | | | | Professed priest of the Barnabites |
| Francisco Blanco | | | | One of the 26 Martyrs of Japan |
| Francisco Coll Guitart | | | | |
| Francisco Marto | | | | |
| Francisco Pinazo Peñalver | | | | |
| François de Laval | | | | Canonized by equivalent canonization, first Bishop of Quebec. Professed priest of the Paris Foreign Mission Society. |
| Fridolin of Säckingen | | | | |
| Fructuosus | | | | |
| Frumentius | | | | |
| Fulgentius of Cartagena | | | | |
| Fulgentius of Ruspe | | | | |
| Fursey | | | | |
| Gabriel de Duisco | | | | One of the 26 Martyrs of Japan |
| Gabriel Lalemant | | | | One of the Canadian Martyrs |
| Gabriel of Our Lady of Sorrows | | | | |
| Gaetano Catanoso | | | | |
| Gaetano Errico | | | | |
| Galgano Guidotti | | | | |
| Gall | | | | |
| Gamaliel | | | | |
| Gaspar del Bufalo | | | | Priest of the Vicariate of Rome; founder of the Missionaries of the Precious Blood |
| Gaspare Bertoni | | | | Priest of the Diocese of Verona; founder of the Congregation of the Holy Stigmata |
| Gaucherius | | | | |
| Gaudentius of Rimini | | | | |
| Gaudiosus of Tarazona | | | | |
| Gebhard of Constance | | | | |
| Gelasius of Fossombrone | | | | |
| Geltrude Comensoli | | | | |
| Geminianus | | | | Bishop of Modena |
| Geminus of Fossombrone | | | | |
| Gemma Galgani | | | | |
| Genesius of Arles | | | | |
| Genesius of Rome | | | | |
| Genevieve | | | | |
| Genoveva Torres Morales | | | | |
| George | | | | |
| George Preca | | | | |
| Gerald of Sauve-Majeure | | | | |
| Gerard Majella | | | | |
| Gerard of Csanád | | | | |
| Gerard of Potenza | | | | |
| Gerard of Toul | | | | |
| Germain of Paris | | | | Bishop of Paris |
| Germaine Cousin | | | | |
| Germanicus of Smyrna | | | | Martyr |
| Gerolamo Emiliani | | | | |
| Gertrude of Nivelles | | | | |
| Gertrude the Great | | | | |
| Getulius | | | | |
| Gherardino Sostegni | | | | One of the Seven Holy Founders of the Servite Order |
| Gianna Beretta Molla | | | | |
| Gilbert of Sempringham | | | | |
| Giles | | | | |
| Giordano Ansaloni | | | | One of the 16 Martyrs of Japan |
| Giovanni Antonio Farina | | | | |
| Giovanni Battista de' Rossi | | | | |
| Giovanni Battista Piamarta | | | | |
| Giovanni Battista Scalabrini | | | | |
| Giovanni Calabria | | | | |
| Giovanni Leonardi | | | | Priest and founder of the Clerics Regular of the Mother of God |
| Giuditta Vannini | | | | |
| Giulia Salzano | | | | |
| Giuseppe Allamano | | | | |
| Giuseppe Benedetto Cottolengo | | | | Founder of the Little House of Divine Providence. Priest of the Archdiocese of Turin; founder of the Sisters of Saint Joseph Benedict Cottolengo, the Brothers of Saint Joseph Benedict Cottolengo and the Society of Priests of Saint Joseph Benedict Cottolengo |
| Giuseppe Maria Tomasi | | | | Professed priest of the Theatines; cardinal |
| Giuseppe Moscati | | | | |
| Giustino de Jacobis | | | | |
| Giustino Russolillo | | | | |
| Gleb | | | | |
| Glyceria | | | | |
| Gobnait | | | | |
| Godelieve of Gistel | | | | |
| Godfried Coart | | | | One of the Martyrs of Gorkum |
| Godfried van Duynen | | | | One of the Martyrs of Gorkum |
| Gonsalo Garcia | | | | One of the 26 Martyrs of Japan, first Indian to become a saint |
| | | | One of the Uganda Martyrs |
| Gordianus | | | | |
| Gordius of Caesarea | | | | |
| Gorgonia | | | | |
| Gorgonius of Rome | | | | |
| Gotthard of Hildesheim | | | | |
| Greca | | | | |
| Gregorio Barbarigo | | | | Bishop of Padua; cardinal |
| Gregory of Langres | | | | |
| Gregory of Narek | | | | |
| Gregory of Nazianzus | | | | |
| Gregory of Nyssa | | | | |
| Gregory Thaumaturgus | | | | |
| Gregory the Illuminator | | | | |
| Guarinus of Palestrina | | | | |
| Guido Maria Conforti | | | | |
| Guillaume Courtet | | | | One of the 16 Martyrs of Japan |
| Gummarus | | | | Saint of the Belgian town Lier |
| | | | One of the Uganda Martyrs |
| | | | | First Argentine saint. One of the Martyrs of Turon. Also known as Saint Benito de Jesus. |
| Hedwig of Silesia | | | | |
| Hegesippus | | | | |
| Helena of Constantinople | | | | |
| Helena of Skövde | | | | |
| Heliodorus of Altino | | | | |
| Hemma of Gurk | | | | |
| Henry II | | | | Emperor of Burgundy and Bavaria |
| Henry Morse | | | | One of the Forty Martyrs of England and Wales |
| Henry of Uppsala | | | | |
| Henry Walpole | | | | One of the Forty Martyrs of England and Wales |
| Herculanils | | | | |
| Heribert of Cologne | | | | |
| Hermann Joseph | | | | |
| Hermenegild | | | | |
| Hermes | | | | |
| Hermias | | | | |
| Hermione of Ephesus | | | | |
| Hilarion | | | | |
| Hilary of Poitiers | | | | |
| Hildegard of Bingen | | | | Professed religious of the Benedictine Nuns, Doctor of the Church in 2012 |
| Hippolytus of Rome | | | | |
| Homobonus | | | | |
| Honorina | | | | |
| Honorius of Canterbury | | | | |
| Hripsime | | | | |
| Hubertus | | | | |
| Hugh dei Lippi Uggucioni | | | | One of the Seven Holy Founders of the Servite Order |
| Hugh of Châteauneuf | | | | |
| Hugh of Cluny | | | | |
| Hugh of Lincoln | | | | |
| Humilis of Bisignano | | | | |
| Humility | | | | |
| Hyacinth of Rome | | | | |
| Hyacinth of Caesarea | | | | |
| Hyacinth of Poland | | | | |
| Hyacintha Mariscotti | | | | |
| Hypatius of Gangra | | | | |
| Ia of Cornwall | | | | |
| Ignatius of Antioch | | | | |
| Ignatius of Laconi | | | | Professed religious of the Franciscan Capuchins |
| Ignatius of Loyola | | | | Founded the Society of Jesus |
| Ignatius of Santhià | | | | Professed priest of the Franciscan Capuchins |
| Ignazia Verzeri | | | | Founder of the Daughters of the Sacred Heart of Jesus |
| Ildefonsus | | | | |
| Ingrid of Skänninge | | | | |
| Inocencio of Mary Immaculate | | | | One of the Martyrs of Turon |
| Íñigo of Oña | | | | |
| Irenaeus | | | | |
| Irene of Rome | | | | |
| Irene of Tomar | | | | |
| Dulce de Souza Lopes Pontes | | | | Also known as "Dulce of the Poor" |
| Isaac Jogues | | | | One of the Canadian Martyrs |
| Isaac of Armenia | | | | |
| Isaac of Dalmatia | | | | |
| Isaac of Nineveh | | | | |
| Isidora | | | | |
| Isidore of Seville | | | | Archbishop of Seville, Doctor of the Church |
| Isidore the Laborer | | | | |
| Íte of Killeedy | | | | |
| Ivo of Chartres | | | | |
| Ivo of Kermartin | | | | |
| Jacinta Marto | | | | |
| Jacob of Nisibis | | | | |
| Jacob of Serugh | | | | |
| Jacobo Kyushei Tomonaga | | | | One of the 16 Martyrs of Japan |
| Jacques Berthieu | | | | |
| Jadwiga of Poland | | | | |
| Jaime Hilario Barbal | | | | |
| | | | One of the Uganda Martyrs |
| James Kisai | | | | One of the 26 Martyrs of Japan |
| James Lacobs | | | | One of the Martyrs of Gorkum |
| James of the Marches | | | | |
| James the Greater | | | | |
| James the Just | | | | |
| James the Less | | | | |
| Jan of Oisterwijk | | | | One of the Martyrs of Gorkum |
| Jan Sarkander | | | | |
| Jane Frances de Chantal | | | | |
| Januarius | | | | Bishop of Benevento |
| Jason of Thessalonica | | - | - | - |
| Jean de Brébeuf | | | | One of the Canadian Martyrs |
| Jean de Lalande | | | | One of the Canadian Martyrs |
| Jean-Baptiste de La Salle | | | | |
| Jeanne de Lestonnac | | | | Widow; founder of the Sisters of the Company of Mary |
| Jeanne Delanoue | | | | Founder of the Servants of the Poor |
| Jeanne Jugan | | | | |
| Jeanne-Antide Thouret | | | | Founder of the Sisters of Charity of Saint Joan Antida Thouret |
| Jenaro Sánchez Delgadillo | | | | One of the Saints of the Cristero War |
| Jerome | | | | Translated the Vulgate |
| Jerome of Weert | | | | One of the Martyrs of Gorkum |
| | | | One of the Saints of the Cristero War |
| Joachim | | | | |
| | | | One of the 26 Martyrs of Japan |
| Joan Elizabeth Bichier des Âges | | | | Cofounder of the Sisters of the Cross |
| Joan of Arc | | | | French heroine and martyr |
| Joan of France | | | | |
| Joaquina Vedruna de Mas | | | | |
| John Almond | | | | One of the Forty Martyrs of England and Wales |
| John Berchmans | | | | |
| John Bosco | | | | |
| John Boste | | | | One of the Forty Martyrs of England and Wales |
| John Buonagiunta Monetti | | | | One of the Seven Holy Founders of the Servite Order |
| John Cantius | | | | |
| John Cassian | | | | |
| John Chrysostom | | | | |
| John de Britto | | | | |
| John Eudes | | | | |
| John Fisher | | | | |
| John Francis Regis | | | | |
| John [Gabriel Perboyre] | | | | |
| John Gualbert | | | | |
| John Henry Newman | | | | |
| John Houghton | | | | One of the Forty Martyrs of England and Wales |
| John Jones | | | | One of the Forty Martyrs of England and Wales |
| John Joseph of the Cross | | | | |
| John Kemble | | | | One of the Forty Martyrs of England and Wales |
| John Kisaka | | | | One of the 26 Martyrs of Japan |
| John Lloyd | | | | One of the Forty Martyrs of England and Wales |
| John Macias | | | | Professed religious of the Dominicans |
| | | | One of the Uganda Martyrs |
| John Maron | | | | First Maronite patriarch |
| John Neumann | | | | |
| John of Ávila | | | | |
| John of Beverley | | | | |
| John of Capistrano | | | | |
| John of Cologne | | | | One of the Martyrs of Gorkum |
| John of Damascus | | | | |
| John of Dukla | | | | |
| John of God | | | | |
| John of Matha | | | | |
| John of Meda | | | | |
| John of Nepomuk | | | | |
| John of Rome | | | | |
| John of Sahagún | | | | |
| John of Trogir | | | | |
| John of Tufara | | | | |
| John of the Cross | | | | |
| John Ogilvie | | | | |
| John Payne | | | | One of the Forty Martyrs of England and Wales |
| John Plessington | | | | One of the Forty Martyrs of England and Wales |
| John Rigby | | | | One of the Forty Martyrs of England and Wales |
| John Roberts | | | | One of the Forty Martyrs of England and Wales |
| | | | One of the 26 Martyrs of Japan |
| John Southworth | | | | One of the Forty Martyrs of England and Wales |
| John Stone | | | | One of the Forty Martyrs of England and Wales |
| John the Apostle | | | | |
| John the Baptist | | | | |
| John Twenge | | | | |
| John Vianney | | | | |
| John Wall | | | | One of the Forty Martyrs of England and Wales |
| Jón Ögmundsson | | | | |
| Josaphat | unknown | unknown | | |
| Josaphat Kuntsevych | | | | |
| Jose Gabriel del Rosario Brochero | | | | |
| José Isabel Flores Varela | | | | One of the Saints of the Cristero War |
| José Maria de Yermo y Parres | | | | |
| José María Robles Hurtado | | | | One of the Saints of the Cristero War |
| José María Rubio | | | | |
| José Sánchez del Río | | | | One of the Saints of the Cristero War |
| Josemaría Escrivá | | | | |
| Josep Manyanet i Vives | | | | |
| Joseph | | | | Husband of the Blessed Virgin Mary |
| Joseph Cafasso | | | | |
| Joseph Calasanz | | | | |
| Joseph Freinademetz | | | | |
| Joseph Marello | | | | |
| Joseph Mukasa Balikuddembe | | | | One of the Uganda Martyrs |
| Joseph of Anchieta, S.J. | | | | |
| Joseph of Cupertino | | | | |
| Joseph of Leonessa | | | | |
| Joseph Oriol | | | | |
| Joseph Pignatelli | | | | Professed priest of the Jesuits |
| Joseph Vaz | | | | Priest of the Oratorians |
| Joseph Volotsky | | | | |
| Josephine Bakhita | | | | |
| Jovita | | | | |
| Józef Bilczewski | | | | |
| Sebastian Pelczar">Saint Sebastian">Sebastian Pelczar | | | | |
| Juan de Ribera | | | | Archbishop of Valencia |
| Juan del Castillo | | | | |
| Juan Diego | | | | First Roman Catholic indigenous American saint |
| Juan García López-Rico | | | | |
| Juan Grande Román | | | | |
| Juan Jacob Fernández | | | | |
| Juan of Tlaxcala | | | | One of the Child Martyrs of Tlaxcala |
| Judas Cyriacus | | | | |
| Jude the Apostle | | | | Also known as Jude Thaddeus |
| Julia of Corsica | | | | |
| | | | One of the Martyrs of Turon |
| Julian of Antioch | | | | |
| Julian of Cuenca | | | | |
| Julian of Mesopotamia | | | | |
| Julian of Sora | | | | |
| Juliana Falconieri | | | | |
| Juliana of Liège | | | | |
| Juliana of Nicomedia | | | | |
| Julie Billiart | | | | Founder of the Sisters of Notre Dame de Namur. |
| Julio Álvarez Mendoza | | | | One of the Saints of the Cristero War |
| Julius of Novara | | | | |
| Julius of Rome | | | | |
| Junípero Serra | | | | Professed priest of the Franciscan Friars Minor |
| Justin Martyr | | | | |
| Justin of Chieti | | | | |
| Justin of Siponto | | | | |
| Justina of Padua | | | | |
| Justino Orona Madrigal | | | | One of the Saints of the Cristero War |
| Justus of Urgell | | | | |
| Juvenal of Benevento | | | | |
| Juvenal of Narni | | | | |
| Kalliopi | 200s | c. 250 | | |
| Kateri Tekakwitha | | | | First Native American to become a saint |
| Katharine Drexel | | | | |
| Kilian | | | | |
| Kinga of Poland | | | | |
| Kizito | | | | One of the Uganda Martyrs |
| Kunigunde of Rapperswil | | | | |
| Kuriakose Elias Chavara | | | | |
| Ladislaus I of Hungary | | | | King Saint Ladislaus of Hungary completed the work of King Saint Stephen of Hungary, he consolidated the Hungarian state power and strengthened the Christianity. His charismatic personality, strategic leadership and military talents resulted the termination of internal power struggles and foreign military threats. He was seen as the embodiment of the knight-king ideal to be emulated all over Europe. Saint Ladislaus became the first saint in the world whose identity was confirmed by archaeogenetic tests. |
| Lambert of Maastricht | | | | |
| | | | |
| Largus | | | | |
| Laura Montoya | | | | |
| Laurentia | | | | |
| Lawrence Giustiniani | | | | |
| Lawrence of Brindisi | | | | |
| Lawrence of Rome | | | | Martyr of Rome |
| Lazarus of Bardiaboch | | | | |
| Lazarus of Bethany | | | | |
| | | | One of the 16 Martyrs of Japan |
| Leander of Seville | | | | |
| Leo Karasumaru | | | | One of the 26 Martyrs of Japan |
| Leo of Montefeltro | | | | |
| Leoba | | | | |
| Leocadia | | | | |
| Leonard of Noblac | | | | |
| Leonard of Port Maurice | | | | |
| Leonard van Veghel | | | | One of the Martyrs of Gorkum |
| Leonardo Murialdo | | | | |
| Leonie Aviat | | | | |
| Leopold III | | | | |
| Leopold Mandić | | | | |
| Leucius of Brindisi | | | | |
| Leutfridus | | | | |
| Liberalis of Treviso | | | | |
| Liberius of Ravenna | | | | Bishop of Ravenna |
| Libert of Saint-Trond | | | | |
| Liborius of Le Mans | | | | Bishop of Le Mans |
| Livinus | | | | |
| Lodovico Pavoni | | | | Priest and founder of the Sons of Mary Immaculate |
| Longinus | | | | |
| Longinus of Satala | | | | |
| Lorcán Ua Tuathail | | | | |
| Lorenzo Ruiz | | | | One of the 16 Martyrs of Japan |
| Louis Bertrand | | | | |
| Louis de Montfort | | | | Priest of the Archdiocese of Rennes; founder of the Company of Mary, the Daughters of Wisdom, and the Brothers of Saint Gabriel |
| | | | One of the 26 Martyrs of Japan |
| Louis IX of France | | | | |
| Louis Martin | | | | |
| Louise de Marillac | | | | |
| Lubentius | | | | |
| Luca Antonio Falcone | | | | |
| Lucian of Antioch | | | | |
| Lucius | | | | |
| Lucius of Britain | | | | |
| Lucy | | | | |
| Lucy Filippini | | | | Founder of the Religious Teachers Filippini |
| Ludger | | | | |
| Ludmila of Bohemia | | | | |
| Ludovico of Casoria | | | | |
| Luigi Guanella | | | | |
| Luigi Maria Palazzolo | | | | |
| Luigi Orione | | | | |
| Luigi Scrosoppi | | | | |
| Luis Batis Sáinz | | | | One of the Saints of the Cristero War |
| | | | One of the 16 Martyrs of Japan |
| Luke Kirby | | | | One of the Forty Martyrs of England and Wales |
| Luke the Evangelist | | | | |
| | | | One of the Uganda Martyrs |
| Lutgardis | | | | |
| Luxorius | | | | |
| Lydia of Thyatira | | | | |
| Macarius of Alexandria | | | | |
| Macarius of Egypt | | | | |
| Macrina the Younger | | | | |
| Madeleine Sophie Barat | | | | |
| Máedóc of Ferns | | | | |
| Máel Ruba | | | | |
| Magdalene of Canossa | | | | Founder of the Canossian Daughters of Charity and the Canossian Sons of Charity |
| Magdalene of Nagasaki | | | | One of the 16 Martyrs of Japan |
| Magnus of Anagni | | | | |
| Magnus of Cuneo | | | | |
| Magnus of Fossombrone | | | | |
| Majolus of Cluny | | | | |
| Malachy | | | | |
| Malchus of Syria | | | | |
| Manuel González García | | | | |
| Manuel Míguez González | | | | |
| Manuel Moralez | | | | One of the Saints of the Cristero War |
| Manuel Ruiz López | | | | |
| María de las Maravillas de Jesús | | | | |
| Marcella of Marseille | | | | |
| Marcellin Champagnat | | | | Professed priest of the Society of Mary, Marist Missionaries; founder of the Marist Brothers of the Schools |
| Marcellinus | | | | |
| Marcellinus of Tomi | | | | |
| Marcellus of Capua | | | | |
| Marcian of Tortona | | | | |
| Marciana of Mauretania | | | | |
| Marciano José | | | | One of the Martyrs of Turon |
| Marcianus | | | | |
| Margaret Clitherow | | | | One of the Forty Martyrs of England and Wales |
| Margaret Mary Alacoque | | | | Professed religious of the Visitation Nuns |
| Margaret of Castello | | | | |
| Margaret of Cortona | | | | |
| Margaret of Hungary | | | | |
| Margaret of Scotland | | | | Married layperson and queen of Scotland |
| Margaret the Virgin | | | | |
| Margaret Ward | | | | One of the Forty Martyrs of England and Wales |
| Margarito Flores García | | | | One of the Saints of the Cristero War |
| Marguerite Bays | | | | |
| Marguerite Bourgeoys | | | | Founder of the Sisters of the Congregation of Notre Dame of Montreal |
| María Antonia de Paz y Figueroa | | | | Argentina's first female saint |
| Maria Bernarda Bütler | | | | |
| Maria Bertilla Boscardin | | | | |
| Maria Crescentia Höss | | | | Professed religious of the Franciscan Nuns of the Third Order Regular |
| Maria Cristina of the Immaculate Conception Brando | | | | |
| Maria Crocifissa di Rosa | | | | |
| María de la Purísima Salvat Romero | | | | |
| Maria De Mattias | | | | |
| Maria Domenica Mantovani | | | | |
| Maria Domenica Mazzarello | | | | |
| Maria Giuseppa Rossello | | | | |
| Maria Goretti | | | | |
| María Guadalupe García Zavala | | | | |
| María Josefa Sancho de Guerra | | | | |
| Maria Katharina Kasper | | | | |
| Maria Micaela Desmaisieres | | | | |
| María Natividad Venegas de la Torre | | | | |
| Maria Soledad Torres y Acosta | | | | |
| Mariam Baouardy | | | | |
| Mariam Thresia Chiramel | | | | Syro-Malabar Catholic nun and the founder of the Congregation of the Holy Family |
| Mariana de Jesús de Paredes | | | | Layperson of the Archdiocese of Quito, member of the Secular Franciscans |
| Marianne Cope | | | | |
| Marie of the Incarnation | | | | Canonized by equivalent canonization and founder of the Ursulines of Quebec convent. |
| Marie-Adolphine | 8 March 1866 | 9 July 1900 | 1 October 2000 by Pope John Paul II | One of the Martyr Saints of China |
| Marie-Alphonsine Danil Ghattas | | | | |
| Marie-Azélie Guérin | | | | |
| Marie-Eugénie de Jésus | | | | |
| Marie-Léonie Paradis | | | | |
| Marie-Madeleine Postel | | | | Founder of the Sisters of the Christian Schools of Saint Julie Postel |
| Marie-Marguerite d'Youville | | | | Widow; founder of the Sisters of Charity of Montreal |
| Marie-Nicolas-Antoine Daveluy | | | | One of the Korean Martyrs |
| Marina of Aguas Santas | | | | |
| Marina of Omura | | | | One of the 16 Martyrs of Japan |
| Marinus | | | | |
| Marius | | | | |
| Mark the Evangelist | | | | |
| Marko Krizin | | | | |
| Marolus | | | | |
| Maron | | | | |
| Martha of Bethany | | | | |
| Martha of Persia | | | | |
| Martin de Porres | | | | Professed religious of the Dominicans |
| Martin of Leon | | | | |
| | | | One of the 26 Martyrs of Japan |
| Martin of Tours | | | | |
| Martina of Rome | | | | |
| Martinian | | | | |
| Martinianus | | | | |
| Maruthas of Martyropolis | | | | |
| Mary | | | | Mother of Jesus Christ |
| Mary Euphrasia Pelletier | | | | |
| Mary Frances of the Five Wounds | | | | |
| Mary MacKillop | | | | |
| Mary Magdalene | | | | |
| Mary Magdalene de' Pazzi | | | | |
| Mary of Bethany | | | | Identified as Mary of Magdalene historically |
| Mateo Correa Magallanes | | | | One of the Saints of the Cristero War |
| Matilda of Ringelheim | | | | |
| Matiya Mulumba | | | | One of the Uganda Martyrs |
| | | | One of the 16 Martyrs of Japan |
| Matthew the Apostle | | | | |
| Matthias | | | | |
| Matthias of Jerusalem | | | | |
| | | | One of the 26 Martyrs of Japan |
| Maura | | | | |
| Maurice | | | | |
| Maurus | | | | |
| Maximilian Kolbe | | | | |
| Maximus of Évreux | | | | |
| Maximus of Naples | | | | |
| Maximus of Rome | | | | |
| Maximus the Confessor | | | | |
| | | | One of the Uganda Martyrs |
| Mechtilde | | | | |
| Meinhard | | | | Professed priest of the Canons Regular of Saint Augustine, Bishop of Latvia |
| Meinrad of Einsiedeln | | | | |
| Melania the Younger | | | | |
| Melchior Grodziecki | | | | |
| Meletius of Antioch | | | | |
| Melito of Sardis | | | | - |
| Melangell | | | | |
| Menas | | | | |
| Metrodora, and Nymphodora|Menodora] | | | | |
| Methodius | | | | |
| Methodius of Olympus | | | | |
| Metrodora | | | | |
| Mercurialis of Forlì | | | | |
| Michael de Sanctis | | | | |
| | | | One of the 26 Martyrs of Japan |
| | | | One of the 16 Martyrs of Japan |
| Michel Garicoïts | | | | |
| | | | One of the 16 Martyrs of Japan |
| | | | One of the Saints of the Cristero War |
| Miguel Febres Cordero | | | | |
| Mildrith | | | | |
| Mirocles | | | | |
| Mo Chutu of Lismore | unknown | 14 May 639 | | |
| Monica | | | | |
| Moninne | | | | |
| Monitor | | | | Bishop of Orléans |
| Moses the Black | | | | |
| | | | One of the Uganda Martyrs |
| | | | One of the Uganda Martyrs |
| Munditia | | | | |
| Mungo | | | | |
| Mutien-Marie Wiaux | | | | |
| Nabor of Milan | | | | |
| Nabor of Rome | | | | |
| Narcisa de Jesús | | | | |
| Narcissus | | | | |
| Narnus | | | | |
| Natalia of Cordoba | unknown | | | Among the Martyrs of Cordoba |
| Natalis | | | | |
| Naum | | | | |
| Nazaria Ignacia March Mesa | | | | |
| Nazarius | | | | |
| Nazarius of Rome | | | | |
| Nectarius of Auvergne | | | | |
| Nereus | | | | |
| Nerses I | | | | |
| Nicanor Ascanio Soria | | | | |
| Nicanor the Deacon | | | | |
| Nicasius of Die | | | | |
| Nicasius of Heeze | | | | One of the Martyrs of Gorkum |
| Nicetas the Goth | | | | |
| Nicholas of Flüe | | | | |
| Nicholas of Myra | | | | |
| Nicholas of Tolentino | | | | |
| Nicholas Owen | | | | One of the Forty Martyrs of England and Wales |
| Nicholas Pieck | | | | One of the Martyrs of Gorkum |
| Nicholas Poppel | | | | One of the Martyrs of Gorkum |
| Nicholas Tavelic | | | | |
| Nicholas the Pilgrim | | | | |
| Nicodemus | | | | |
| Nicola Saggio | | | | Professed Oblate of the Minims |
| Nicolás María Alberca Torres | | | | |
| Nicomedes | | | | |
| Nilus of Palestine | | | | |
| Nilus of Sinai | | | | |
| Nimatullah Kassab | | | | |
| Ninian | | | | |
| Nino | | | | |
| Noël Chabanel | | | | One of the Canadian Martyrs |
| Norbert of Xanten | | | | |
| Nothhelm | | | | |
| Novatus | | | | |
| | | | One of the Uganda Martyrs |
| Nuno Álvares Pereira | | | | |
| Nunzio Sulprizio | | | | |
| Respicius, and Nympha|Nympha] | | | | |
| Nymphodora | | | | |
| Oda | | | | |
| Odile of Alsace | | | | |
| Odilia of Cologne | | | | |
| Odilo of Cluny | | | | |
| Odo of Cluny | | | | |
| Olaf II of Norway | | | | |
| Olga of Kiev | | | | Also known as Elena |
| Oliva of Brescia | | | | |
| Oliver Plunkett | | | | |
| Onesimus | | | | |
| Onesiphorus | | | f | |
| Onuphrius | | | | |
| Optatus | | | | |
| Oran of Iona | | | | |
| Orentius | | | | |
| Orientius | | | | |
| Osana | | | | |
| Óscar Romero | | | | |
| Osmund | | | | |
| Othmar | | | | |
| Otto of Bamberg | | | | |
| Ovidius | | | | |
| Pachomius the Great | | | | |
| Pacian | | | | |
| Pacificus of San Severino | | | | |
| Palatias | | | | |
| Pamphilus of Caesarea | | | | |
| Pancras of Rome | | | | |
| Pancras of Taormina | | | | |
| Pantaenus | | | | |
| | | | |
| Pantaleon | | | | |
| Paola Elisabetta Cerioli | | | | |
| Paphnutius of Thebes | | | | |
| Papias of Hierapolis | | | | |
| Parmenas | | | | One of the Seven Deacons |
| Parthenius | | | | |
| Paschal Baylon | | | | |
| Paschasius Radbertus | | | | |
| Patermutius | | | | |
| Paternus of Auch | | | | |
| Patiens | | | | |
| Patrick | | | | |
| Paul Chong Hasang | c. 1794 | 22 September 1839 | 6 May 1984 by Pope John Paul II | One of the Korean Martyrs |
| Paul Ibaraki | | | | One of the 26 Martyrs of Japan |
| Paul Miki | | | | One of the 26 Martyrs of Japan |
| Paul of the Cross | | | | |
| Paul of Thebes | | | | First hermit |
| Paul Suzuki | | | | One of the 26 Martyrs of Japan |
| Paul the Apostle | | | | |
| Paul the Simple | | | | |
| Paula Frassinetti | | | | |
| Paula Montal Fornés | | | | |
| Pauline of the Agonizing Heart of Jesus | | | | |
| Paulinus II of Aquileia | | | | |
| Paulinus of Antioch | | | | |
| Paulinus of Nola | | | | |
| Paulinus of Trier | | | | |
| Pausilippus | | | | |
| Pedro Armengol | | | | |
| Pedro Calungsod | | | | |
| Pedro de Arbués | | | | |
| Pedro Esqueda Ramirez | | | | One of the Saints of the Cristero War |
| Pedro Nolasco Soler Méndez | | | | |
| Pedro Poveda Castroverde | | | | |
| Pega | | | | |
| Pelagia of Tarsus | | | | |
| Peleus | | | | |
| Peregrine Laziosi | | | | |
| Peregrine of Auxerre | | | | |
| Peregrinus | | | | - |
| Perpetua | | | | See also Passion of Saint Perpetua, Saint Felicitas, and their Companions |
| Peter | | | | |
| Peter Balsam | | | | Crucified at Aulane during the Maximinian persecution |
| | | | One of the 26 Martyrs of Japan |
| Peter Canisius | | | | |
| Peter Chanel | | | | Professed priest of the Society of Mary, Marist Missionaries; martyr |
| Peter Chrysologus | | | | |
| Peter Claver | | | | |
| Peter Damian | | | | Doctor of the Church |
| Peter de Regalado | | | | |
| Peter Faber | | | | |
| Peter Fourier | | | | |
| Peter González | | | | |
| Peter Julian Eymard | | | | |
| Peter Nolasco | | | | |
| Peter of Alcantara | | | | |
| Peter I of Alexandria|Peter of Alexandria] | | | | Pope of Alexandria |
| Peter of Anagni | | | | |
| Peter of Assche | | | | One of the Martyrs of Gorkum |
| Peter of Canterbury | | | | |
| Peter of Jesus Maldonado | | | | One of the Saints of the Cristero War |
| | | | Companion of Nicholas Tavelic |
| Peter of Saint Joseph de Betancur | | | | |
| Peter of Tarentaise | | | | |
| Peter of Verona | | | | |
| | | | One of the 26 Martyrs of Japan |
| Peter the Exorcist | | | | |
| Peter Thomas | | | | |
| Petronax of Monte Cassino | | | | |
| Petronilla | | | | |
| Pharnacius of Satala | | | | |
| Philemon | | | | |
| Philetus | | | | Roman senator |
| Philip Benizi de Damiani | | | | |
| Philip Evans | | | | One of the Forty Martyrs of England and Wales |
| Philip Howard | | | | One of the Forty Martyrs of England and Wales |
| Philip Neri | | | | |
| Philip of Gortyna | | | | |
| Philip of Jesus | | | | One of the 26 Martyrs of Japan |
| Philip the Apostle | | | | |
| Philo | | | | |
| Philomena | | | | Virgin, Martyr |
| Phocas | | | | |
| Phocas the Gardener | | | | |
| Pier Giorgio Frassati | | | | |
| Pietro I Orseolo | | | | |
| Pinytus | | | | |
| Pio of Pietrelcina | | | | |
| Pirmin | | | | |
| Placidus | | | | |
| Placidus of Messina | | | | |
| Plautilla | | | | |
| Plechelm | | | | |
| Podius of Florence | | | | Bishop of Florence |
| Polycarp | | | | |
| Polydore Plasden | | | | One of the Forty Martyrs of England and Wales |
| Pompilio Maria Pirrotti | | | | Professed priest of the Piarists |
| | | | One of the Uganda Martyrs |
| Pontianus of Spoleto | | | | |
| Pope Adeodatus I | | | | |
| Pope Adrian III | | | | |
| Pope Agapetus I | | | | |
| Pope Agatho | | | | |
| Pope Alexander I | | | | |
| Pope Anacletus | | | | |
| Pope Anastasius I | | | | |
| Pope Anicetus | | | | |
| Pope Anterus | | | | |
| Pope Benedict II | | | | |
| Boniface I">Saint Boniface">Boniface I | | | | |
| Pope Boniface IV | | | | |
| Pope Caius | | | | |
| Pope Callixtus I | | | | |
| Pope Celestine I | | | | |
| Pope Celestine V | | | | |
| Pope Clement I | | | | |
| Pope Cornelius | | | | |
| Pope Damasus I | | | | |
| Pope Dionysius | | | | |
| Pope Eleutherius | | | | |
| Pope Eugene I | | | | |
| Pope Eugene II | | | | |
| Pope Eusebius | | | | |
| Pope Eutychian | | | | |
| Pope Evaristus | | | | |
| Pope Fabian | | | | |
| Pope Felix I | | | | |
| Pope Felix III | | | | |
| Pope Felix IV | | | | |
| Pope Gelasius I | | | | |
| Pope Gregory I | | | | Also called Gregory the Great and Gregory the Dialogist; monastic and Doctor of the Church |
| Pope Gregory II | | | | |
| Pope Gregory III | | | | |
| Pope Gregory VII | | | | |
| Pope Hilarius | | | | |
| Pope Hormisdas | | | | |
| Pope Hyginus | | | | |
| Pope Innocent I | | | | |
| Pope John I | | | | |
| Pope John Paul II | | | | |
| Pope John XXIII | | | | |
| Pope Julius I | | | | |
| Pope Leo I | | | | Also known as Leo the Great, Doctor of the Church |
| Pope Leo II | | | | |
| Pope Leo III | | | | |
| Pope Leo IV | | | | |
| Pope Leo IX | | | | |
| Pope Linus | | | | |
| Lucius I">Ptolemaeus and Lucius">Lucius I | | | | |
| Pope Marcellinus | | | | |
| Pope Marcellus I | | | | |
| Pope Mark | | | | |
| Pope Martin I | | | | |
| Pope Miltiades | | | | |
| Pope Nicholas I | | | | |
| Pope Paschal I | | | | |
| Pope Paul I | | | | |
| Pope Paul VI | | | | |
| Pope Pius I | | | | |
| Pope Pius V | | | | |
| Pope Pius X | | | | |
| Pope Pontian | | | | |
| Sergius I">Sergius and Bacchus">Sergius I | | | | |
| Pope Silverius | | | | |
| Pope Simplicius | | | | |
| Pope Siricius | | | | |
| Pope Sixtus I | | | | |
| Pope Sixtus II | | | | |
| Pope Sixtus III | | | | |
| Pope Soter | | | | |
| Pope Stephen I | | | | |
| Pope Stephen IV | | | | |
| Pope Sylvester I | | | | |
| Pope Symmachus | | | | |
| Pope Telesphorus | | | | |
| Pope Urban I | | | f | |
| Pope Victor I | | | | |
| Pope Vitalian | | | | |
| Pope Zachary | | | | |
| Pope Zephyrinus | | | | |
| Pope Zosimus | | | | |
| Possidius | | | | |
| Potentian | | | | |
| Pothinus | | | | Bishop of Lyon |
| Praejectus | 625 | 25 January 676 | | |
| Praxedes | | | | |
| Primus | | | | |
| Prisca | | | | |
| Priscilla | 0s | 0s | | |
| Priscus of Auxerre | | | | |
| Probus | | | | |
| Processus | | | | |
| Procopius of Sázava | | | | |
| Proculus of Bologna | | | | |
| Proculus of Pozzuoli | | | | |
| Prosdocimus | | | | |
| Protus | | | | |
| Ptolemaeus | | | | |
| Publius | | | | |
| Pudens | | | | |
| Pudentiana | | | | |
| Pusai | | | | |
| Quadratus of Africa | | | | |
| Quadratus of Athens | | | | |
| Quirinus of Neuss | | | | |
| Quirinus of Sescia | | | | |
| Rafael Arnáiz Barón | | | | |
| Rafael Guízar y Valencia | | | | |
| Rafaela Porras Ayllón | | | | |
| Rafqa Pietra Choboq Ar-Rayès | | | | |
| Rainerius | | | | |
| Rais | | | | |
| Ralph Sherwin | | | | One of the Forty Martyrs of England and Wales |
| Raphael Kalinowski | | | | |
| Raphael Massabki | | | | |
| Raymond Nonnatus | | | | |
| Raymond of Penyafort | | | | Spanish Dominican friar |
| Raynerius of Split | | | | |
| Regina (martyr)|Regina] | | | | Martyr |
| Relindis of Maaseik | | | | |
| Remigius | | | | |
| René Goupil | | | | One of the Canadian Martyrs |
| Respicius | | | | |
| Richard Gwyn | | | | One of the Forty Martyrs of England and Wales |
| Richard of Chichester | | | | |
| Richard Pampuri | | | | |
| Richard Reynolds | | | | One of the Forty Martyrs of England and Wales |
| Richard the Pilgrim | | | | |
| Rigobert | | | | |
| Rita of Cascia | | | | |
| Robert Bellarmine | | | | Doctor of the church |
| Robert Lawrence | | | | One of the Forty Martyrs of England and Wales |
| Robert of Molesme | | | | |
| Robert Southwell | | | | One of the Forty Martyrs of England and Wales |
| Roch | | | | |
| Roderick | | | | |
| Rodrigo Aguilar Alemán | | | | One of the Saints of the Cristero War |
| Rögnvald Kali Kolsson | | | | Layperson of the Diocese of Caithness |
| Román Adame Rosales | | | | One of the Saints of the Cristero War |
| Romanus of Caesarea | | | | |
| Romanus Ostiarius | | | | |
| Romaric | | | | |
| Romuald | | | | |
| Romulus | | | | Martyr |
| Roque González y de Santa Cruz | | | | |
| Rosa Francisca Dolors Molas Vallvé | | | | |
| Rose of Lima | | | | |
| Rose of Viterbo | | | | |
| Rose Philippine Duchesne | | | | Professed religious of the Society of the Religious of the Sacred Heart of Jesus |
| Rose Venerini | | | | Founder of the Religious Teachers Venerini |
| Rudesind | | | | |
| Rufina | | | | |
| Rufus of Metz | | | | |
| Rupert of Bingen | | | | |
| Rupert of Salzburg | | | | |
| Sabás Reyes Salazar | | | | One of the Saints of the Cristero War |
| Sabbas the Goth | | | | |
| Sabbas the Sanctified | | | | |
| Sava of Serbia | c. 1100s | c. 1200s | found in Acta Sanctorum | Archbishop of Serbia and Equal-to-apostles |
| Sabina | | | | |
| Sagar of Laodicea | | | | |
| Solomon Leclercq | | | | |
| Salonius | | | | |
| Salvador Lara Puente | | | | One of the Saints of the Cristero War |
| Salvador of Horta | | | | |
| Sancha of Portugal | | | | |
| Saturnin | | | | |
| Saturninus of Cagliari | | | | |
| Satyrus of Milan | | | | |
| Savina of Milan | | | | |
| Savinian | | | | |
| Scholastica | | | | |
| Sebaldus | | | | |
| Sebastian | | | | |
| Secunda | | | | |
| Secundus of Asti | | | | |
| Senán mac Geirrcinn | | | | |
| Senator of Milan | | | | |
| Sennen | | | | |
| Septimius of Iesi | | | | |
| Seraphin of Montegranaro | | | | |
| Serapia | | | | |
| Serapion of Algiers | | | | |
| Serapion of Macedonia | | | | |
| Serenus the Gardener | | | | |
| Sergius | | | | |
| Servandus | | | | |
| Servatius of Tongeren | | | | |
| Seraphim of Sarov | | | | |
| Severian of Scythopolis | | | | Bishop of Scythopolis, implemented the Chalcedonian faith among Palestine. He was murdered during the unrest caused by the Definition of the Faith, which stated that the divinity and humanity of Christ were two distinct but inseparable natures, contradicting the archimandrite Eutyches. |
| Severinus of Noricum | | | | |
| Severus of Barcelona | | | | |
| Shemon Bar Sabbae | | | | |
| Sicarius | | | | |
| Sidonius Apollinaris | | | | |
| Sigfrid of Sweden | | | | |
| Sigismund of Burgundy | | | | |
| Silas | | | | |
| Silvia | | | | Mother of Pope Gregory I |
| Silvin of Auchy | | | | |
| Simeon | | | | |
| Simeon of Jerusalem | | | | |
| Simeon of Mantua | | | | |
| Simeon Stylites | | | | |
| Simón de Rojas | | | | |
| Simon Stock | | | | |
| Simon the Zealot | | | | |
| Simpert | | | | |
| Simplicius | | | | |
| Smaragdus | | | | |
| Sossius | | | | |
| Spyridon | | | | |
| Stachys the Apostle | | | | |
| Stanislaus Kostka | | | | |
| Stanislaus of Szczepanów | | | | |
| Stanislaus Papczyński | | | | Professed priest and founder of the Marians of the Immaculate Conception |
| Stanisław Kazimierczyk | | | | |
| Stephen | | | | |
| | | | Companion of Nicholas Tavelic |
| Stephen Harding | | | | |
| Stephen I of Hungary | | | | Married layperson of the Archdiocese of Esztergom, king of Hungary |
| Stephen of Muret | | | | |
| Stephen of Obazine | | | | |
| Stephen of Perm | | | | Russian Orthodox saint |
| Stephen Pongracz | | | | |
| Stephen the Younger | | | | |
| Sturm | | | | |
| Swithun Wells | | | | One of the Forty Martyrs of England and Wales |
| Syagrius of Nice | | | | |
| Sylvester Gozzolini | | | | |
| Symeon of Trier | | | | |
| Symeon the New Theologian | | | | Theologian |
| Symphorosa | | | | - |
| Sunniva | | | | |
| Szymon of Lipnica | | | | |
| Talarican | | | | |
| Tarachus | | | | |
| Tarcisius | | | | |
| Tatwine | | | | |
| Taurinus | | | | |
| Teilo | | | | |
| Telemachus | | | | |
| Terentian | | | | Bishop of Todi |
| Teresa Jornet Ibars | | | | |
| Teresa Margaret of the Sacred Heart | | | | Professed religious of the Discalced Carmelite Nuns |
| Teresa of Ávila | | | | |
| Teresa of Calcutta | | | | |
| Teresa of the Andes | | | | |
| Thamel | | | | |
| Thecla | | | | |
| Thecla of Kitzingen | | | | |
| Theobald of Marly | | | | |
| Theobald of Provins | | | | |
| Theodora | | | | |
| Theodora of Alexandria | | | | |
| Theodore | | | | |
| Théodore Guérin | | | | |
| Theodore of Amasea | | | | |
| Theodore of der Eem | | | | One of the Martyrs of Gorkum |
| Theodore of Pavia | | | | |
| Theodore Stratelates | | | | |
| Theodore the Studite | | | | |
| Theodoret of Antioch | | | | |
| Theodosia of Constantinople | | | | |
| Theodosia of Tyre | | | | |
| Theodosius of Kiev | | | | |
| Theodotus of Ancyra | | | | |
| Theoktiste of Lesbos | | | | |
| Theonas | | | | |
| Theopemptus of Nicomedia | | | | |
| Theophanes the Confessor | | | | |
| Theophilus of Antioch | | | | |
| Theopista | | | | |
| Theophilus of Corte | | | | |
| Theotonius of Coimbra | | | | |
| Theresa of Portugal | | | | |
| Thérèse Couderc | | | | |
| Thérèse of Lisieux | | | | |
| Thomas Aquinas | | | | |
| Thomas Becket | | | | Archbishop of Canterbury |
| Thomas de Cantilupe | | | | |
| Thomas Garnet | | | | One of the Forty Martyrs of England and Wales |
| Thomas Kozaki | | | | One of the 26 Martyrs of Japan |
| Thomas More | | | | |
| Thomas of Villanova | | | | |
| | | | One of the 16 Martyrs of Japan |
| Thomas the Apostle | | | | |
| Thomas Xico | | | | One of the 26 Martyrs of Japan |
| Thraseas | | | | Bishop of Eumania |
| Tiburtius of Rome | | | | |
| Timothy | | | | |
| Titus | | | | |
| Titus Brandsma | | | | |
| Tola of Clonard | | | | |
| Tommaso da Cori | | | | Professed priest of the Franciscan Friars Minor |
| Toribio Romo González | | | | One of the Saints of the Cristero War |
| Torpes of Pisa | | | | |
| Tranquilino Ubiarco Robles | | | | One of the Saints of the Cristero War |
| Tryphon | | | | |
| Turibius of Mogrovejo | | | | Archbishop of Lima |
| Ubald | | | | Bishop of Gubbio |
| Ubaldesca Taccini | | | | |
| Ulrich of Augsburg | | | | The first saint to be canonized not by a local authority but by the Pope. |
| Urban of Langres | | | | |
| Ursicinus of Ravenna | | | | |
| Ursmar | | | | |
| Ursula | | | | |
| Ursula Ledóchowska | | | | |
| Ursus of Auxerre | | | | |
| Valentine | | | | |
| Valerian of Rome | | | | |
| Venantius of Camerino | | | | |
| Verdiana | | | | |
| Vergilius of Salzburg | | | | |
| Veronica | | | | |
| Veronica Giuliani | | | | |
| Viator of Bergamo | | | | |
| Vicenta María López i Vicuña | | | | |
| Victoria | | | | |
| Victoria of Albitina | | | | |
| | | | One of the Martyrs of Turon |
| Victorinus of Pettau | | | | |
| Viktor of Xanten | | | | |
| Villanus | | | | |
| Vincent de Paul | | | | |
| Vincent Ferrer | | | | |
| Vincent of Lérins | | | | |
| Vincent of Saragossa | | | | |
| Vincent Pallotti | | | | |
| Vincent Romano | | | | |
| | | | One of the 16 Martyrs of Japan |
| Vincent Strambi | | | | Professed priest of the Passionists; Bishop of Macerata |
| Vincenza Gerosa | | | | Cofounder of the Sisters of Charity of Saint Bartolomea Capitanio and Vincenza Gerosa |
| Vincenzo Grossi | | | | Priest of the Vicariate of Rome; founder of the Society of the Catholic Apostolate, the Pallottine Missionary Sisters and the Pallottine Sisters of the Catholic Apostolate |
| Virginia Centurione Bracelli | | | | |
| Vitalis | | | | |
| Vitus | | | | |
| Vladimir the Great | | | | Grand Prince of Kiev |
| Walpurga | | | | |
| Walter of Pontoise | | | | |
| Wenceslaus | | | | |
| Wendelin of Trier | | | | |
| Wiborada | | | | |
| Wihtberht | | | | |
| Wihtburh | | | | |
| Wilfrid | | | | |
| Wilfrid II | | | | |
| Wilgils | | | | |
| Willehad | | | | |
| Willehad of Denmark | | | | One of the Martyrs of Gorkum |
| William of Breteuil | | | | |
| William of Donjeon | | | | |
| William of Gellone | | | | |
| William of Maleval | | | | |
| William of Perth | | | | |
| William of Roskilde | | | | |
| William of York | | | | |
| William Pinchon | | | | |
| Willibald | | | | |
| Willibrord | | | | |
| Wolfgang of Regensburg | | | | |
| Wolfhelm of Brauweiler | | | | Professed priest of the Benedictines |
| Wulfram of Sens | | | | |
| Wulfstan | | | | |
| Zacchaeus of Jerusalem | | | | |
| Zacharias of Vienne | | | | |
| Zanitas of Bardiaboch | | | | |
| Zdislava Berka | | | | |
| Zeno of Verona | | | | |
| Zita | | | | |
| Zoe | | | | |
| Zoilus | | | | |
| Zosimus | | | | |
| Zygmunt Gorazdowski | | | | |
| Zygmunt Szczęsny Feliński | | | | |