| Saint | Background | Date | Feast Day |
| Aaron | 03/07 | ||
| Aaron | cf Cracoa | 09/10 | |
| Aaron | Abbot | 21/06 | |
| Aaron | Biblical, bro of Moses | 22/06 | |
| Abban | Leinster/Wexford | C6th | 27/10 |
| Abban(us) (Kirin Boniface) | Bishop of Ross | d630 | 16/03 |
| Abbas | of St Savvas | Orth 20/03 | |
| Abbo | Abbot of Fleury | c945-1004 | 13/11 |
| Abda + Abdjesus | Bishops of Kaskhar | 16/05 | |
| Abdiesus/Hebed Jesus | Persian martyr | d342 | 22/05 |
| Abdon / Abdo / Abdus + Sennen | Persians martyred at Rome | c250 | 30/07 |
| Abel | Abbot of Lobbes | d751 | 05/08 |
| Abel | son of Adam | 01/01, 02/01 | |
| Abercius Marcellus | Bishop of Hieropolis | d200 | 22/10 |
| Abibas | C1st | 03/08 | |
| Abibus, Gurias + Samonas | Syria | d323 | 15/11 |
| Abidon | 03/08 | ||
| Abilius | 3rd Bishop of Alexandria | d98 | 22/02 |
| Abra | virgin dau Hilary of Poitiers | c342-60 | 12/12 |
| Abraham + Mary | 15/03 | ||
| Abraham Kidunaia | hermit, Edessa | C6th | 16/03 |
| Abraham | of Rostov | C12th | 29/10 |
| Abraham | of Smolensk | d1221 | 21/08 |
| Abraham | the Patriarch | 09/10 | |
| Abraham | the Poor/the Child, Egypt | d367 | 27/10 |
| Abraham | Abbot of St Cyriacus | d c480 | 15/06 |
| Abraham | Archbishop of Ephesus | C6th | 28/10 |
| Abraham | Bishop of Arbela | d c345 | 05/02 |
| Abraham | Bishop of Carrhae | d422 | 14/02 |
| Abraham | Bishop of Kratia | d558 | 06/12 |
| Abraham, Isaac + Jacob | Biblical patriarchs | 06/10, 20/12 | |
| Abran / Gibrian | of Ireland | d515 | 08/05 |
| Abudimus / Abudemius | Greece | C4th | 15/07 |
| Abundius + Irenaeus | 27/08 | ||
| Abundius, Abunda(n)tius, Marcian + John | Rome | c 304, | 16/09 |
| Abundius | Bishop of Como | d469 | 02/04 |
| Abundius | Cordova | d854 | 11/07 |
| Acacius | Bishop of Amida / Diarbekir | 09/04 | |
| Acacius | martyr at Sebaste | C3rd | 27/11 |
| Acacius / Agathus | Byzantium | 08/05 | |
| Acca | Bishop of Hexham | d742 | 20/10 |
| Acepsimas, Joseph + Aitillaha | 14/03 | ||
| Acepsimas | Persia | d376 | 22/01 |
| Acestes | C1st | 02/07 | |
| Acharius | Bishop of Noyon | d621 | 27/11 |
| Achatius / Acacius | One of ten thousand martyrs | 22/06 | |
| Achatius / Acasius / Acacius / Akakios | Bishop of Antioch | d c250 | 30/03 + 31/03 |
| Achillas + Amoes | 'Flowers of the Desert', Egypt | 17/1 | |
| Achillas | Bishop of Alexandria | d313 | 07/11 |
| Achillas / Achilles / Achillius | Metropolitan of Larissa | d330 | 15/05 |
| Achilleus + Nereus | Rome | C1st | 12/05 |
| Achilleus Kewanuka | Martyr of Uganda | d1886 | 03/06 |
| Achius / Acius + AcheolusAceolus | martyrs, Amiens | c303 | 01/05 + 02/05 |
| Acisclus + Victoria | Cordoba | C4th | 17/11 |
| Acyndinus, Pegasius, Aphthonius, Elpidephours + Anempodistus | Persia | d345 | 02/11 |
| Ada | Abbess of St-Julien-des-Pres | C7th | 04/12 |
| Adalar / Adalher | companion of Boniface | d755 | 05/06 (20/04) |
| Adalard | Abbot of Corbigny | 05/10 | |
| Adalbald | of Ostrevant | d652 | 02/02 |
| Adalbero | Bishop of Verdun + Metz | d1005 | 15/12 |
| Adalbero, Blessed | Bishop of Wurzberg | d 1090 | 06/10 |
| Adalbert | of Egmond | d740 | 25/06 |
| Adalbert | of Magdeburg, Apostle to the Slavs | d981 | 20/06 + 16/12 |
| Adalbert | Bishop of Cambrai | 13/12 | |
| Adalbert | Bishop of Prague | c956-1000 | 24/04, 25/08, (Trans 20/10) |
| Adalgis(us) | disciple of Fursey | d686 | 02/06 |
| Adalpret | Bishop of Trent | 27/03 | |
| Adalsindis | Abbess of Beze | d680 | 03/05 |
| Adalsindis | Nun, Hamayles-Marchiennes | d c715 | 25/12 |
| Adam + Eve | Biblical, first man and woman | 24/12 | |
| Adam | 02/12 | ||
| Adam | of Caithness | 15/09 | |
| Adam | a Bishop | C13th | 24/12 |
| Adam | Abbot of San Sabine | d1210 | 16/05 |
| Adamnan | of Coldingham | d680 | 31/01 |
| Adamnan/Adomnan/Adam McRonan | Abbot of Iona | C7th | 23/07 |
| Adauctus/Auductus + Callisthene | Ephesus | d 312 | 04/10 |
| Adaucus | Phrygia | d304 | 07/02 |
| Addal/Addai + Mari | Edessa | d180 | 05/08 |
| Adela | dau William the Conqueror | d1137 | 24/02 |
| Adela | Wife of Baldwin IV, Flanders | d1071 | 08/07 |
| Adela/Adele | dau King Dagobert | d c730 | 24/12 |
| Adelaide/Adelheidis | Empress of Germany | c930-99 | 16/12, 17/12 |
| Adelaide/Adelheidis/Alice | of Bellich | d1015 | 05/02 |
| Adelard/Adalar | Abbot of Corbie, gs of Charles Martel | c752-827 | 02/01 |
| Adelelm(us)/Aleaume/Lesmes | Abbot of Burgos, Spain bFrance | d1100 | 30/01 |
| Adelelmus | founder of Etival-en-Charnie | d1152 | 27/05 |
| Adelgund(is)/Aldegonda/Aldegun/Aldegunais/Orgonne | Abbess of Mauberge | c630-84 | 30/01 |
| Adelina/e | of Moriton, gd Wm the Conqueror | d1125 | 20/10 |
| Adeline | 02/09 | ||
| Adeloga/Hadeloga | foundress of Kitzingen | d745 | 02/02 |
| Adelph(i)us | Abbot of Remiremont | d670 | 11/09 |
| Adelphius | Bishop of Metz | C5th | 29/08 |
| Aderald | of Troyes | d1004 | 20/10 |
| Adheritus | Bishop of Ravenna | C2nd | 27/09 |
| Adjutor / Adjutre | France | d1131 | 30/04 |
| Ado | Archbishop of Vienne | d875 | 16/12 |
| Adolf | Bishop of Osnabruck | d1224 | 11/02 |
| Adolphus + John | Seville | d850 | 27/09 |
| Adolphus Ludiko-Mkasa | Martyr of Uganda | d1886 | 03/06 |
| Adrian + Eubulus | Palestine | d304 | 05/03, 07/03 |
| Adrian | 26/08 | ||
| Adrian | Maastricht | d668, | 09/03 |
| Adrian Fortescue | d1539 | 09/07 | |
| Adrian | of Bordeaux | 18/06 | |
| Adrian + wife Natalia | of Nicomedia | d304 | 08/09 |
| Adrian (+ comps Stalbrand, Geodianus, Caius, Clodian) | The Martyr, Bishop of St. Andrews | d875 | 04/03 (Translation 08/09) |
| Adrian van Hilvarenbeek | d1572 | 09/07 | |
| Adrian | Abbot in Canterbury | d710 | 09/01 |
| Adrian, Blessed | Dalmatia | C13th | 21/12 |
| Adrio, Basilla + Victor | 17/05 | ||
| Adulph/Adolph/Adulf + bro Botulph/Butulf | Bishop of Utrecht Abbot of Ikanhoe, Boston | C7th | 17/06 |
| Aedicius/Aedesius | Caesaria | d306 | 08/04 |
| Aelfwald | King of Northumbria | 23/09 | |
| Aelred/Ailred | Abbot of Rievaulx | 1110-67 | 12/01 (03/03) |
| Aemilius + Castus | 23/05 | ||
| Aethelbert | king of Kent | d616 | 24/02 |
| Aethelbert | King of Wessex | 23/04 | |
| Aethelred + Aethelbert | Princes of Kent | 17/10 | |
| Afan | Abbot/Bishop, Brecknock, cousin of Dewi | C6th | 16/11 |
| Afra | (of Cyprus) Augsburg | d304 | 05/08 (Conversion 26/10, Translation 04/06) |
| Afra, Faustinus + Jovita | Martyrs, Brescia | 24/05 | |
| Africanus | Bishop in Aquitaine | 01/05 | |
| Africus | Bishop of Comminges | C7th | 16/11 |
| Afrus | 05/08 | ||
| Agabius | Bishop of Verona | d c250 | 04/08 |
| Agabus | Antioch | C1st | 13/02 |
| Agabus, Phlegon, Rufus + Asyncritus | (Orth) 08/04 | ||
| Aganus | Abbot of San Gabriel, Campania | d1100 | 16/02 |
| Agape | follower of Valentine, Termi | d c273 | 15/02 |
| Agape, Irene + Chione/Chionia | Macedonia | d304, | 03/04, 05/04 (Orth 16/04) |
| Agapios, Plesios, Romylos, Dionysios, Dionysios, Alexander, Alexander + Timolaos | (Orth) 15/03 | ||
| Agapitus | 11/03, 20/03, 20/04 | ||
| Agapitus | Antioch | d272 | 18/08 |
| Agapitus, Felicissimus, Januarius, Magnus, Stephen + Vincent | deacons (with Sixtus II) | d258 | 06/08 |
| Agapitus/Agapetos | Pope | d536 | 20/09, 22/04 (Orth 17/04) |
| Agapius + comps (Secundus, Emilian, Tertulla + Antonia) | Citra | d259 | 29/04 |
| Agapius | Caesarea | d306 | 09/08 + 20/11 |
| Agapius | of Novara | 10/09 | |
| Agatha Lin, Blessed | China | 1817-58 | 17/02 |
| Agatha | virgin martyr Sicily | c 251 | 05/02, 21/09 |
| Agatha | virgin of Wimborne | d790 | 12/12 |
| Agathangelo Noury, Blessed | Ethiopia | d1638 | 07/08 |
| Agathangelus | Ancyra | d309 | 23/01 |
| Agatho | of Egypt | C4th | 21/10 |
| Agatho | Pope | c577-681 | 0/01 |
| Agathoclia | virgin martyr | 17/09 | |
| Agathodoros | (Orth) 02/02 | ||
| Agathodorus | 14/04 | ||
| Agathop(o)us/Agathopodus + Theodoulos | Thessalonica | d303 | 04/04 |
| Agelius/Agileus | Carthage | d c300 | 15/10 |
| Ageranus | Order of Beze Côte-d'Or | d303 | 04/04 |
| Agericus | Bishop of Verdun | 01/12 | |
| Agia/Aja/Aye | mother of Lupus, of Sens | C6th | 01/09 |
| Agia/Aya/Aye/Austregildis | wife of Hidulphus, Mons | d c714 | 18/04 |
| Agilbert | Bishop in Wessex + Paris | C7th | 13/10 01/04 (Agibert Translation 11/10) |
| Agilberta | 2nd Abbess of Jouarre | d c 680 | 10/08 |
| Agilulf(us) | Bishop of Cologne | d751 | 09/07 |
| Agilus | 23/01, 30/08 | ||
| Aghna | Ireland | 18/05 | |
| Aghna | Ireland | 22/05 | |
| Agnello/us, Blessed | of Pisa | d1236 | 13/01 |
| Agnellus | Abbot of St Gaudioso, Naples | d c596 | 14/12 |
| Agnes De | Vietnam | d1841 | 12/07 |
| Agnes | of Assisi, sister of Clare | d1253 | 16/11 |
| Agnes | of Bagno | 04/09 | |
| Agnes | of Bohemia/ Prague | d 1200-82 | 02/03 |
| Agnes | of Montepulciano | c1268-1317 | 20/04 |
| Agnes | of Poitiers, Abbess of Holy Cross | d586 | 13/05 |
| Agnes | of Venosa | 01/09 | |
| Agnes Tsao-Kouy | China | d1622 | |
| Agnes | virgin martyr, Rome | 291-305 | 21/01 (Octave 28/1, Translation 02/09) |
| Agoard + Agilbert | 24/06, 25/06 | ||
| Agobard | Bishop of Lyons | d840 | 06/06 |
| Agrates | Bishop of Vienne | 14/10 | |
| Agricius | Bishop of Sens | 13/06 | |
| Agricius/Agrecius | Bishop of Trier/Treves | d335 | 13/01 |
| Agricola + Vitalis | 04/11, 27/11 | ||
| Agricola | 18/12 | ||
| Agricola | Bishop of Chalon-sur-Saône | 18/03 | |
| Agricola | Bishop of Nevers | 26/02 | |
| Agricola | Pannonia | 03/12 | |
| Agricolus/Agricola | Bishop of Avignon | c630-700 | 02/09 |
| Agrippina | d262 | 23/06 | |
| Agrippinus | Bishop of Naples | d c300 | 09/11 |
| Aibert/Aybert | Tournai | d1140 | 07/04 |
| Aichard(us) | of Jumieges (+ Clairvaux) | d687 | 15/09 |
| Aigulf/Aygulf | Bishop of Lerins + comps | d676 | 03/09 (Translation 17/05) |
| Aigulf/Ayoul | Bishop of Bourges | d836 | 22/05 |
| Ailbe/Albius/Ailbas/Albeus/Elvis | Bishop of Munster/Emley | d541 | 12/09 |
| Ailbe | 30/01 | ||
| Aileran | Sapiens/the Wise, Rector of Clonard | d664 | |
| Aimo | monk at Savigny | d1173 | 30/04 |
| Airaldus | 02/01 | ||
| Aithche | Patroness of Cill Aithche, Co. Limerick | 15/01 | |
| Ajutre/Adjutor/Adjuture/Adjoutr | Normandy | d1131 | 30/04 |
| Akakios | of Seres | d1816 | (Orth) 01/05 |
| Alaclaris | of Uffnan | 29/09 | |
| Alalbero | of Liege | 01/01 | |
| Alan de la Roche, Blessed | C14th | ||
| Alan | C4th | 20/06 | |
| Alan | Wales | C5th | 26/10 |
| Alban | Verulamium | d305 | Passion 21/06 22/06, Finding of the relics 02/08 |
| Alban Bartholomew Roe | c1580-1642 | 21/01 | |
| Alberic | Abbot of Cîteaux, Cistercian founder | d1109 | 26/01 |
| Alberic | Bishop of Utrecht | d784 | 14/11 |
| Albert (Ailbert) | of Vercelli | 07/04 | |
| Albert Chmielkowski | 1845-1916 | 25/12, 17/06 | |
| Albert, Blessed | of Bergamo | d1279 | 11/05 |
| Albert | of Butrio | 05/09 | |
| Albert | of Gambron | d800 | 29/12 |
| Albert | of Louvain/Liege | d1193 | 21/11 |
| Albert, Blessed | of Pontida | 05/09 | |
| Albert | of Trapani, Sicily, a Carmelite | d1307 | 07/08, 05/08 |
| Albert | Bishop of Cashel, Ireland | d800 | 08/01 |
| Albert | Bishop of Montecorvino | d1127 | 05/04 |
| Albert | Patriarch of Jerusalem | d1215 | 25/09, 07/04 |
| Albert/Aribert | Bishop of Como | d1092 | 03/05 |
| Albert/Lambert | of Genoa | d1239 | 08/07 |
| Alberta | 11/03 | ||
| Albertinus | monk at Fonte Avelana | d1294 | 31/08 |
| Albertus Magnus/Albert the Great | of Lauingen | 1193/1206-1280 | 15/11 |
| Albina | virgin martyr, Caesarea | d250 | 16/12 |
| Albinus (Witta) | Bishop of Buraburg | d760 | 26/10 |
| Albinus | of Mainz | C5th | 21/06 22/06 |
| Albinus | Bishop of Lyon | 15/09 | |
| Albinus/Aubin | Bishop of Angers | d549 | 01/03 |
| Alburga | foundress of Wilton | 25/12 | |
| Alc(h)mund + Tilber(h)t | Bishop of Hexham | d781 | 03/09 07/09 |
| Alchas | Bishop of Toul | 28/09 | |
| Alcmund | King of Northumbria | 19/03 | |
| Alcuin, Blessed | of York | d804 | |
| Aldagott | Bishop of Chur | d1165 | 03/10 |
| Aldate | Bishop of Gloucester | d600 | 04/02 |
| Aldebrandus/Hildebrand | Bishop of Forsombrone | d1219 | 01/05 |
| Aldemar the Wise | Italy | d1080 | 24/03 |
| Aldetrud | 25/02 | ||
| Aldhelm / Adelemus / Athelmas / Adelnie / Eadelhelm / Aedelhem | Bishop of Sherbourne | c639-709 | 24/05, 25/05 (Translation 31/03, 05/05) |
| Aldo / Aude / Aldobrandesca | Siena | 26/04 | |
| Aldric/Aldericus | Bishop of Sens | d841 | 06/06 (Translation 10/10) |
| Aldric/Elric/Aldericus | Bishop of Le Mans | d856 | 07/01 |
| Alena | Vorst, Brussels | c640 | 18/06 |
| Alexander + comps | Treves/Trier | C3rd | 05/10 |
| Alexander + Epipodius | Gaul | d178, | 24/04 |
| Alexander | 06/04, 09/06, 22/02, 22/08 | ||
| Alexander Akimetes | 'of the Sleepless Ones', Constantinople | d403 | 23/02 (Orth 15/01) |
| Alexander Briant | c1556-81 | 01/12 | |
| Alexander | Corinth | d361 | 24/11 |
| Alexander Nevsky | Prince of Novgorod | 1220-63 | 23/11 |
| Alexander, Blessed | of Lugo, Spain | d1645 | 10/02 |
| Alexander Rawlins, Blessed | York | d1595 | 07/04 |
| Alexander Sauli | Bishop of Pavia | 1533-92 | 11/10 |
| Alexander | the Charcoal-burner, Bishop of Comana | d275 | 11/08 |
| Alexander, Abundius, Antigonus + Fortunatus | martyrs Rome or Thessaly | 27/02 | |
| Alexander, Ammonius + comps | 09/02 | ||
| Alexander | bishop martyr, Rome | C2nd | 21/09 |
| Alexander | Bishop of Alexandria | c250-328 | 26/02 |
| Alexander | Bishop of Cappadocia + Jerusalem | d251 | 18/03 (30/01) |
| Alexander | Bishop of Constantinople | d340 | 28/08 |
| Alexander | Bishop of Fermo | c250 | 11/01 |
| Alexander | Bishop of Fiesole | d590 | 06/06 |
| Alexander | Bishop of Verona | C8th | 04/06 |
| Alexander | Salonica | C4th | 09/11 |
| Alexander | companion of Caius, Phrygia | c172 | 10/03 |
| Alexander | companion of Photinus | d177 | 02/06 |
| Alexander, Epimachus + comps | Alexandria | d250 | 12/12 |
| Alexander, Eventius + Theodolus | 03/05 | ||
| Alexander, Heraclius + comps | 12/10 | ||
| Alexander + comps Verulus, Secundius etc | Martyr of Arumentum | d 434 | 26/02 |
| Alexander | Pannonia (Martyr of Thrace) | C3rd | 27/03 |
| Alexander | one of the 7 Brothers, Rome | c165, | 10/07 |
| Alexander, Priscus + Malchus | Caesarea | d260 | 28/03 |
| Alexander, Secundus + Abundus | Theban Legion | 26/08 | |
| Alexandra + comps (Claudia, Euphrasia, Matrona, Juliana, Euphemia, Theodosia, Derphuta + her sister) | Amisus, Paphlagonia | c300 | 20/03 |
| Alexi(u)s/Alexios | Roman | C5th | 17/07 (Orth 17/03) |
| Alexius Falconieri | One of 7 Holy Founders, Servite Order | d1310 | 17/02 |
| Alexius Nakamura, Blessed | Nagasaki | d1619 | 01/06 |
| Alexius, Blessed | Nagasaki | d1622 | 27/11 |
| Alfanus | Archbishop of Salerno | d1085 | 09/10 |
| Alfred the Great | King | 849-99 | 26/10 |
| Alfric(k) | Archbishop of Canterbury | d1105 | 16/11 |
| Alfwold | Bishop of Sherborne | d1058 | 26/03 |
| Alice/Adelaide/Aleydis | Nun near Brussels | d1250 | 15/06 |
| Alipius | Bishop of Tagaste | d430 | 15/08 |
| Alix le Clerq | 1576-1616 | (orig Jan 9) 22/10 | |
| Alkelda/Akeld/Athilda | Middleham | C8th/10th | 27/03 |
| Allan/E(i)lian ab Erbin | Cornwall | C6th | 12/01 |
| Allerius, (Alferius) | Salerno | d1050 | 12/04 |
| Allocus | 23/12 | ||
| Allodius | Bishop of Auxerre | 28/09 | |
| Allucio | shepherd, Pescia, Tuscany | d1134 | 23/10 |
| Almachius/Telemachus | Rome | d c400 | 01/01 |
| Almar | Bishop of Senlis | 07/11 | |
| Almedha/Aled/Filuned | dau St Brychan | C6th | 01/08 |
| Almirus, Alneus + Carifelus | Greez-sur-Roc d560 | 11/09 | |
| Almus/Alme/Alanus | Abbot of Balmerino, Scotland | d1270 | 28/06 |
| Alnobert/Annobert | Bishop of Séez | d869 | 16/05 |
| Alnoth | of Stowe, herdsmen at Weedon | d700 | 25/11, 27/02 |
| Alodia + Nunilo(nis) | martyrs, Spain | d851 | 22/10 |
| Alorius | Bishop of Quimper | 26/10 | |
| Aloysius Gonzaga | Spain | 1568-91 | 21/06 |
| Alphaeus + Zachaeus | Caesarea | d303 | 17/11 |
| Alphaeus | father of James the Less | 26/05 | |
| Alphea | 18/12 | ||
| Alphege/Elphege | the Bald/the Elder, Bishop of Winchester | d951 | 12/03 |
| Alphege/Elphege | Archbishop of Canterbury | 953-1012 | 19/04, 28/12 Ordination 16/11 |
| Alphius, Philadelphus, Cyrinus + Benedicta | Sicily | d251 | 10/05 |
| Alphonsus de Mena, Blessed | bSpain dJapan | d1622 | 01/06 |
| Alphonsus de Orozco, Blessed | 1500-91 | 19/09 | |
| Alphonsus de Vaena | Jesuit, Spain | d1570 | 15/07 |
| Alphonsus Mary de Liguori | Bishop of St Agatha | 1696-1787 | 01/08 |
| Alphonsus Rodriguez | Majorca | 1532-1617 | 30/10 |
| Alpinianus | 27/04 | ||
| Alpinus | Bishop of Châlons-sur-Marne | 07/09 (Translation 02/05) | |
| Alrick + Godric | England | C12th | 30/10 |
| Altfrid | Bishop of Hildesheim | d874 | 15/08 |
| Altinus | bishop/martyr | C1st or 4th | 19/10 |
| Altman | Bishop of Passau | c1020-91 | 08/08 |
| Alto (Ultan) | of Ireland | 05/09 | |
| Alto | Irish or Saxon missionary to Bavaria | d c760, | 09/02 |
| Alvarez | of Cordoba | d c1340 | 19/02 |
| Alvitus | Bishop of Leon | d1063 | 05/09 |
| Alypius | stylite | C4th | 26/11 |
| Amabel/Amabilis | nun in Rouen | d634 | 11/07 |
| Amabilis (m) | 19/10 | ||
| Amabilis | Clermont/Auvergne | d475 | 01/11 |
| Amadeus IX | of Savoy | 1435-72 | 30/03 |
| Amadeus, Blessed | of Lausanne | d1159 | 28/01 |
| Amadeus/Amedeus | Franciscan founder, Portugal | 1420-82 | 09/08 |
| Amadour/Amator | trad servant of Holy Family + husband of Veronica | 20/08 | |
| Amaethlu/Maethlu | Llanfaethlu, Anglesey | C6th | 26/12, 22/12 |
| Amalberga/Amelberga | Belgium | C8th | 10/07 14/07 |
| Amalberga/Amelberga | Abbess of Susteren | d c900 | 21/11 |
| Amalberga/Amelberga/Amelia | wife of Witgar | d690 | 10/06 |
| Amalburga | C8th | 08/01 | |
| Amandinus | Bishop of Auvergne | 07/11 | |
| Amandus + Domnolenus | 25/06 | ||
| Amandus + Vedast/Foster | C6th | 06/02 | |
| Amandus | Bishop of Rennes | 13/11 | |
| Amandus | Bishop of Strassburg | Translation 26/10 | |
| Amandus/Amantus | 06/09 | ||
| Amantius + comps | Noyon | 06/06 | |
| Amantius | 10/06 | ||
| Amantius | Bishop of Como | d440 | 08/04 |
| Amantius | Bishop of Rodez | 04/11 | |
| Amantius | priest at Citta di Castello | d600 | 26/09 |
| Amarand (Amaranthus, martyr) | Bishop of Albi | c700 | 07/11 |
| Amarinus | Bishop of Clermont | d676 | 25/01 |
| Amasius | of Greece, Bishop of Teano | d356 | 23/01 |
| Amaswinthus | Abbot in Andalucia | d 982 | 22/12 |
| Amata, Blessed | Dominican nun, Italy | d1270 | 10/06 |
| Amata/Amy | sister of Clare of Assisi | d c1250 | 20/02 |
| Amator | Bishop of Autun | C3rd | 26/11 |
| Amator | hermit in Portugal | 27/03 | |
| Amator/Amatre | Bishop of Auxerre | d418 | 01/05 (Translation 12/07) |
| Amatus | Bishop of Nusco | d1093 | 31/08 |
| Amatus | Bishop of Sens/Sion | d690 | 13/09 (19/10) |
| Amatus/Aimee/Ame | abbot, France | d630 | 13/09 |
| Ambrose | 02/11, 03/04, 04/04, 17/05 | ||
| Ambrose Autpert | d c778 | 19/07 | |
| Ambrose Edward Barlow | Lancaster | d1641 | 11/09 (10/09) |
| Ambrose Fernandez, Blessed | b Portugal d Japan | 1551-16-20 | 14/03 |
| Ambrose Kibuka | Martyr of Uganda | 03/06 | |
| Ambrose | Bishop of Cahors | d752 | 16/10 (17/10) |
| Ambrose | Bishop of Milan | 339-397 | Ordination and Translation 07/12 (05/12) |
| Ambrose | Bishop of Sens | 03/09 | |
| Americus/Emericus/Emery | s of King Stephen of Hungary | C11th | 04/11, 05/11 (Deposition 02/09) |
| Amicus + Amelius | knights of Charlemagne | d773 | 12/10 |
| Amicus | Monte Cassino | d1045 | 02/11 |
| Ammon (Emille), Ingenes, Ptolemy, Theophilus + Zeno | Theban Martyrs | d250 | 20/12 |
| Ammon/ Amon/Amun/Amos | the Great Alexandria | d c350 | 04/10 |
| Ammon(a) + comps | Deacon of Thrace | d c332 | 01/09 |
| Ammon, Emilian, Lassa + comps | Mombressa, Africa | 09/02 | |
| Ammonaria + comps (Ammonaria II, Mercuria + Dionysia) | Alexandria | c 250 | 12/12 |
| Ammonius + Moseus | Bithynia | c 250 | 18/01 |
| Amo(u)r + Viator | Franche-Comte | 09/08 | |
| Amo(u)r | of Aquitaine, founder of Munsterbilsen, Liege | C9th | 08/10 |
| Amo/Aimo | Bishop of Toul | C4th | 23/10 |
| Amor | of Amorbach, Abbot | C8th | 17/08 |
| Amos | Biblical | 30/03 | |
| Ampelius | Bishop of Milan | d c672 | 07/07 |
| Ampelus + Gaius | Sicilians | c302 | 20/11 |
| Amphianus/Ap(p)ian | Lycia | d c305 | 02/04 |
| Amphibalus | 'of the Cloak', teacher of Alban, Verulamium | 24/06 | |
| Amphiloch(i)us | Bishop of Iconium | d400 | 23/11 |
| Amphion | Bishop of Nicomedia | C4th | |
| Amulwinus | Abbot/Bishop, Lobbes | d c750 | 07/02 |
| Amunia | mother of St Aurea | d1069 | 11/03 |
| Amyas | 27/08 | ||
| Ana/Dana | 18/1 | ||
| Anacharius/Aunacharius | Bishop of Auxerre | d c604 | 25/09 |
| Anacletus | Pope | C1st | 13/07 |
| Ananias, Azarias + Misael | 16/12 | ||
| Ananias | Damascus | C1st | 25/02 |
| Ananias | martyr Arbela, Persia or Erbel, Assyria | 01/12 | |
| Ananias | Phoenicia | d c298 | 25/02 |
| Anastasia + Basilissa | 15/04 | ||
| Anastasia + Cyril | Rome | c257 | 28/10 |
| Anastasia | 09/12, 29/01 | ||
| Anastasia | the Patrician, Egypt | C6th | 10/03 |
| Anastasia | the Martyr, Dalmatia (Pannonia) | c304 | 25/12 |
| Anastasios (Spas) | of Strumitza | d1794 | 29/08 27/08 |
| Anastasius/Astericus (Radla) | 1st Archbishop of Hungary | d1040 | 12/11 |
| Anastasius Cornicularius | martyr, Salone nr Rome | 274 | 21/08 |
| Anastasius | Rome | d251 | 11/05 |
| Anastasius I | Pope | 20/12 | |
| Anastasius II | Pope | 27/04 | |
| Anastasius | of Castel Sant'Elia | 11/01 | |
| Anastasius | of Cluny | c1020-85 | 16/10 |
| Anastasius | the Fuller, Dalmatia | c304 | 07/09 |
| Anastasius | the Sinaite/of Sinai | d c700 | 21/04 |
| Anastasius | Archbishop of Eszterzom, Hungary | C11th | 14/08 |
| Anastasius | Archbishop of Sens | d977 | 07/01 |
| Anastasius | Bishop of Antioch | d609 | |
| Anastasius | the Younger, Bishop of Antioch | d599 | 21/04 |
| Anastasius | Bishop of Brescia | d610 | 20/05 |
| Anastasius | Bishop of Ter | d553 | 17/08 |
| Anastasius, Felix + Digna | Tabanos near Cordoba | d853 | 14/06 |
| Anastasius | Jerusalem | d797 | 20/03 |
| Anastasius | Patron of Leris, Spain | 11/05 | |
| Anastasius, Placid, Genesius + comps | 11/10 | ||
| Anastasius | Syrmium, Pannonia | C4th | 06/01 |
| Anastasius/Anastatius (Magundat) | Persian martyr | d628 | 22/01 |
| Anathalon | Bishop of Milan | C1st | 24/09 |
| Anatole Kiriggwajjo | Martyr of Uganda | d1886 | 03/06 |
| Anatolia + Victoria | Thora, Italy | c250 | 09/07 |
| Anatolius | of Scotland, Bishop of Salinis | C9th | 03/02 (30/01) |
| Anatolius | Bishop of Cahors | 07/02 | |
| Anatolius | Patriarch of Constantinople | d458 | 03/07 |
| Anatolius/Anatole | of Alexandria, Bishop of Laodicea | d c283 | 03/07 |
| Andeolus | 12/08 | ||
| Andeolus | comp of Polycarp, martyr at Viviers | d208 | 01/05 |
| Andochius, Thyrsus + Felix | 24/09 | ||
| Andrew + Aponius | Jerusalem | C1st | 10/02 |
| Andrew + comps (John, Peter + Anthony) | N Africa | c900 | 23/09 |
| Andrew | 19/03, 22/08 | ||
| Andrew Avellino (Lancellato) | 1521-1608 | 10/11 | |
| Andrew Bobola | Polish Jesuit missionary to Belarus | 1590-1608 | 16/05 (21/05, 23/05) |
| Andrew Corsini | Bishop of Fiesoli | 1302-73 | 04/02 |
| Andrew Dotti | Servite missionary | d 1315 | 03/09 |
| Andrew Dung Lac | Vietnam | 1785-1839 | 21/12 |
| Andrew Fournet | 13/05 | ||
| Andrew Kagwa | Martyr of Uganda | d 1886 | 03/06 |
| Andrew Kim Taegon, Paul Chong Hasang + comps | Korea | C19th | 20/09 |
| Andrew Nam Thuong | Vietnam | d1855 | 5/07 |
| Andrew Oexner, Blessed | of Rinn | 1459-62 | 12/07 |
| Andrew | of Crete | c660-740 | 04/07, 17/10 |
| Andrew | of Peschiera | 19/01 | |
| Andrew, Blessed | of Segni | d1302 | 01/02 |
| Andrew Shushinda, Blessed | Japan | d1617 | 01/06 |
| Andrew the Apostle | 30/11 (Translation 09/05, Octave 07/12, Vigil 29/11) | ||
| Andrew + Donatus | the Scot, Deacon Bishop (of Fiesole) Italy | d880, | 22/08 |
| Andrew | the Tribune, the Great Martyr Silicia | d300, | 19/08 |
| Andrew Trong | Vietnam | 1817-35 | 28/11 |
| Andrew Wouters | martyr of Gorkum | d1572 | 09/07 |
| Andrew Zorard + Benedict | Hungary | d c1010 | 16/07, 17/07 |
| Andrew | Bishop of Trier/Treves | d c235 | 13/01 |
| Andrew, Peter, Nichomachus, Dionysia + comps | Martyrs, Mysia | d251 | 15/05 |
| Andrew/Andre Bessett(e) | 1845-1936 | 06/01 | |
| Andronicus + Athanasia | Egypt | C5th | 09/10 |
| Andronicus, Tarachus + Probus | 11/10 | ||
| Anectus/Anicetus | Caesarea | d303 | 27/06 |
| Aneirin Gwawdrydd | Wales | C7th | 26/10 |
| Angadresima/Angadresma | Abbess of Beauvais | 615-95 | 14/10 (Translation 27/03) |
| Angela (Guardian Angels) | 02/10 | ||
| Angela Merici/Mend | of Brescia | 1470-1540 | 27/01 (01/06, 31/05) |
| Angela, Blessed | of Foligno, Blessed | 1248-1309 | 04/01 (28/02, 28/01) |
| Angelelmus | Bishop of Sts Gervase and Protase, Auxerre | d828 | 07/07 |
| Angelico, Beato/Fra (Guido di Pietro Giovanni da Fiesole) | d1455 | 18/03, 18/02 | |
| Angelina | 15/07 | ||
| Angelo | 12/04 | ||
| Angelo/Angel(us) | Sicily | d1220, | 05/05 |
| Angelus, Blessed | of Acri | 1669-1739 | 30/10 |
| Angelus Orsucci, Blessed | b Lucca Japan | d1622 | 10/09 |
| Angilbert | Abbot of Saint-Riquier | d814 | 18/02 |
| Anglinus | 10th Abbot of Stovelot-Malmedy, Liege | d768 | 28/10 |
| Anianus | Bishop of Besançon | 05/09 | |
| Anianus | Bishop of Chartres | 07/12, 10/06 | |
| Anianus | Bishop of Orléans | d c453 | 17/11 (16/11, 14/06) |
| Anianus/Ananias | Bishop of Alexandria | C1st | 15/04 |
| Anicetus + Photinus | 02/09 | ||
| Anicetus | Pope | C2nd | 17/04 |
| Aninus | hermit in Syria | 16/03 | |
| Ann/Anne | 28/07, 07/06, 09/06 | ||
| Ann | of Kennet | d1002 | 19/08 |
| Anna Maria/Anne Mary Taigi, Blessed | Rome | 1769-1837 | 09/06 (20/05) |
| Anna | the Prophetess, Bible | 01/09 | |
| Anne (Euphemianus) | Constantinople | d820 | 28/10 |
| Anne Jahouvey, Blessed | France/Guyana | 1798-1851 | 5/07 |
| Anne Line | Tyburn | d1601 | 27/02 |
| Anne | Mother of virgin Mary | 26/07 (09/12, 16/08 Translation 30/01, Orth 03/02) | |
| Anne/Susanna | Constantinople | d918 | 23/07 |
| Annemund(us)/Delphinus/Chamond | Bishop of Lyons | d658 | 28/09 |
| Anno, Catholdus + Diethardus | 29/09 | ||
| Anno/Hanno | Archbishop of Cologne | d1075 | 05/12 |
| Ansanus | the Baptizer, Siena | d304 | 01/12 |
| Ansaricus | Bishop of Soissons | 05/09 | |
| Ansbald | Abbot of Prum | d886 | 12/07 |
| Ansbert | Bishop of Rouen | d c695 | 09/02 |
| Ansegisus (Emperor Arnulf) | d833 | 20/07 | |
| Anselm | the Younger, Bishop of Lucca | 1036-86 | 18/03 |
| Anselm | a Lombard, Bishop of Canterbury | 1033-1107/9 | 21/04 |
| Anselm | Abbot in Lerins | d c750 | 18/11 |
| Anselm/Anthelm | of Nonantola | d803 | 03/03 |
| Ansfrid | Bishop of Utrecht | d1010 | 03/05 |
| Ansillo/Ansilio | of Lagny | C7th | 11/10 |
| Anskar/Ansgar/Anscharius | Bishop, Hamburg + Bremen | C9th | 03/02 (Trans/Elev 09/09) |
| Ansovinus | Bishop of Camerino | d840 | 13/03 (21/03) |
| Anstrudis/Astrude | Abbess of Laon | d668 | 17/10 |
| Ansueris/Ansuerus + 28 monks | Abbot of St. Georgenberg, nr Ratzburg, Denmark | d c1066 | 17/07 18/07 |
| Ansuinus | comp of Ageranus, Bleze, Cote d'Or | d888 | 21/05 |
| Ansurius/Isauri | Bishop of Orense, Galicia | d925 | 26/02 |
| Anthelm | Bishop of Bellay/Belley | 1107-78 | 26/06 |
| Antheros/Antherus | Pope | C3rd | 02/01, 03/01 |
| Anthimus | priest-martyr, Rome | d303 | 11/05 (+ comps, 27/04) |
| Anthony | 12/12, 14/04, 19/04, 26/04 | ||
| Anthony Baldinucci, Blessed | 1665-1717 | 07/11 | |
| Anthony Cauleas/Kauleas | Bishop of Constantinople | 829-901 | 12/02 |
| Anthony Dainan | Japan 1584-97 | 06/02 | |
| Anthony Daniel | French Jesuit killed by Iroquois | 1601-48 | 19/10 |
| Anthony della Chiesa, Blessed | comp of Bernardino of Siena | 1394-1459 | 28/07 |
| Anthony Fantosat | Hangchow, China | d1900, | 04/07 |
| Anthony Francisco, Blessed, Rudolf Acquaviva + 3 comps | Jesuit martyrs, India | d1583 | 15/07 |
| Anthony Grass | 13/12 | ||
| Anthony Ishida + comps | Japan | d1632 | 03/09 |
| Anthony Kimura, Blessed | Japan | 1595-1619 | 27/11 |
| Anthony Kiun, Blessed | (of Korea) Japan | d1622 | 10/09 |
| Anthony Manz(on)i, Blessed | 'the Pilgrim' | d1267 | 01/02 |
| Anthony Mary (Eustace) Pucci | Viareggia | 1819-92 | 12/01 |
| Anthony Mary Gianelli | Bishop of Bobbio | 1812-36 | 07/06 |
| Anthony Mary/ Antoine Marie Claret | Archbishop of Santiago de Cuba | 1807-70 | 24/10 |
| Anthony Mary/Antonio Maria Zaccaria | Barnabite co-founder | 1502-1539 | 05/07 |
| Anthony Middleton, Blessed | d1590 | 06/05 | |
| Anthony Nam-Quynh | Vietnam | d1840 | 24/11 |
| Anthony Neyrot, Blessed | Piedmont, d Tunisia | d1460 | 10/04 |
| Anthony | of Amandola | 28/1 | |
| Anthony | of Florenze | 02/05 | |
| Anthony | of Lerins/the Hermit | b c468 | 28/12 |
| Anthony | of Padua, bPortugal | 1195-1231 | 13/06 (Translation 15/02) |
| Anthony + comps (Gregory of Tragurio, Nicholas of Hungary, Thomas of Foligno, Ladislas of Hungary) | of Saxony, d Widdin | d1369 | 12/02 |
| Anthony, Blessed | of Tuy/of St Bonaventure, b Spain, martyred Japan | 1588-1628 | 08/09 |
| Anthony Pechersky | 'of the Caves', Kiev | 983-1073 | 10/07 |
| Anthony Peter Dich | Vietnam | d1838 | 12/08 |
| Anthony Primaldi + comps | Ottranto | d1480 | 14/08 |
| Anthony Sanga, Blessed | Japan | d1622 | 10/09 |
| Anthony | the Abbot/the Great/of Egypt | 251-356 | 17/01 |
| Anthony Turner, Blessed | Tyburn | d1679 | 20/06 |
| Anthony Vom, Blessed | Japan | d1622 | 08/09 |
| Anthony | Abbot at Tours | 04/05 | |
| Anthony | Bishop of Carpentras | 16/07 13/09 | |
| Anthony, Blessed | martyr of Japan | d1632 | 19/08 |
| Anthony, Merulus + John | 17/01 | ||
| Anthony | monk at Froidement | C10th | 09/03 |
| Anth(o)usa | Abbess near Constantinople | C8th | 27/07 (Orth 12/04) |
| Anthousa | the Younger, Persian martyr | 27/08 | |
| Anthymos | the Athonite | d1867 | (Orth) 09/12 |
| Antidius/Tude | Bishop of Besançon | d c265 | 17/06 |
| Antilnus | Abbot of Brandome | C8th | 28/01 |
| Antioch(us)/Andeol | Bishop of Lyons | C4th/5th | 15/10 |
| Antipas | Bishop of Pergamos/Pergamum | d c90 | 11/04 |
| Antoinette | 24/07 31/10 | ||
| Antoinette Roussel | one of 16 Carmelite Nuns (Blessed Martyrs of Compiegne) | d1794 | 17/07 |
| Antolianus/Antholian, Cassius, Maximus, Liminius + Victorinus | Auvergne | d c265 | 06/02 |
| Antonia | 01/03, 04/05, 12/06 | ||
| Antonia | of Brescia | 27/10 | |
| Antonia | of Florence | 28/02 | |
| Antoninus | Rome | d186 | 22/08 |
| Antoninus | of Florence | 1389-1459 | 10/05 |
| Antoninus | Archbishop of Milan | d661 | |
| Antoninus | Bishop of Marseilles | 15/10 | |
| Antoninus | Bishop of Meaux | 30/09 | |
| Antoninus | stonemason, Syria | C4th | 02/09 |
| Anysia | Salonica | d c304 | 30/12 |
| Anysius | Bishop of Salonica | d407/10 | 30/12 |
| Aodh | Ireland | 04/01 | |
| Aodh | Ireland | 25/01 | |
| Aodh | Ireland | 07/02 | |
| Aodh | Ireland | 16/02 | |
| Aodh/Aidus | Ireland | 28/02 | |
| Aodh | Ireland | 07/04 | |
| Aodh | Ireland | 04/05 | |
| Aodh | Ireland | 10/05 | |
| Aodh | Ireland | 27/06 | |
| Aodh | Ireland | 10/07 | |
| Aodh | Ireland | 15/08 | |
| Aodh | Ireland | 31/08 | |
| Aodh | Ireland | 22/09 | |
| Aodh | Ireland | 06/10 | |
| Aodh | Ireland | 29/10 | |
| Aodh | Ireland | 01/11 | |
| Aodh/Aedh mac Breic/Aod MacBricc | Bishop of Rahugh, Westmeath | d 589 | 10/11 (+ 11/04) |
| Aodhamair | of Clogher | 18/02 | |
| Aodhan | Ireland | 01/01 | |
| Aodhan | Ireland | 12/02 | |
| Aodhan | Ireland | 16/03 | |
| Aodhan | Ireland | 20/03 | |
| Aodhan | Ireland | 29/03 | |
| Aodhan | Ireland | 01/04 | |
| Aodhan | Ireland | 08/04 | |
| Aodhan | Ireland | 02/06 | |
| Aodhan | Ireland | 17/06 | |
| Aodhan | Ireland | 19/07 | |
| Aodhan | Ireland | 03/08 | |
| Aodhan | Ireland | 07/08 | |
| Aodhan | Ireland | 04/09 | |
| Aodhan | Ireland | 20/09 | |
| Aodhan | Ireland | 09/10 | |
| Aodhan | Ireland | 12/10 | |
| Aodhan | Ireland | 06/11 | |
| Aodhan | Ireland | 21/11 | |
| Aodhan | Ireland | 25/12 | |
| Aodhan/Aidan of Mayo | Bishop of Meaux | 20/10 | |
| Aodhan/Aidan | Bishop of Lindisfarne | d651 | 31/08 (Trans 08/10) |
| Aodh« n/Aedhan/Aidan/Edan/MaodhÙ g/Maedoc/Modoc | Bishop of Ferns | d626/32 | 31/01 |
| Aodhnait/Aednat | Ireland | 09/11, 10/11 | |
| Aonghus | Ireland | 16/02 | |
| Aonghus | Ireland | 17/11 | |
| Aonghus | Ireland | 20/01 | |
| Aonghus/Angus/Oengus Mac Nisse | Bishop of Connor, Dalriada | d514 | 03/09 |
| Aonghus/Angus/Oengus/Aengus | the Culdee, Keld, Ireland | d824 | 11/03 |
| Apelles | 1st Bishop of Smyrna, Lucius + Clement | C1st | 22/04 (10/09) |
| Aper | 04/12 | ||
| Aper/Aprus | Bishop of Toul | 15/09 | |
| Aphraates | 'the Persian sage', Antioch | d c345 | 07/04 |
| Aphrodisius (+ Caralippus, Agapius + Eusebius) | Bishop of Belziers Languedoc | C1st | 28/04 |
| Aphrodisius | martyr, Alexandria | 30/04 | |
| Aphrodisius/Offradosse | 19/03 | ||
| Apollinaris, Appolinaris | 18/02, 12/09 | ||
| Apollinaris Franco | bSpain dJapan | d1622, | 10/09 |
| Apollinaris Sidonius | Bishop of Clermont/ Avernum | c423-80 | 21/08 |
| Apollinaris Syncletica (Dorotheus) | hermitess near Rome | 05/01 | |
| Apollinaris the Apologist | Bishop of Hierapolis, Phrygia | d c175 | 08/01 |
| Apollinaris | 1st Bishop of Ravenna | C1st | 23/07 |
| Apollinaris | Abbot of Monte Cassino | d828 | 27/11 |
| Apollinaris | Bishop of Valence/Vienne | d520 | 05/10 (Translation 17/06) |
| Apollinaris | martyr at Rheims | d c290 | 23/08 |
| Apollinarius | 07/04 | ||
| Apollinus | 20/04 | ||
| Apollo + comps (Isaac + Crotates) | Nicomedia | c302 | 21/04 |
| Apollo | hermit, Egypt | d c395 | 25/01 |
| Apollonia | Alexandria | d249 | 09/02 |
| Apollonius the Apologist | d186 | 18/04 | |
| Apollonius | Bishop of Benevento | d c326 08/07 | |
| Apollonius | Bishop of Brescia | 07/07 | |
| Apollonius, Philemon + comps | Egypt | c305 | 08/03 |
| Apollonius | Priest, Alexandria | d c205 | 10/04 |
| Apothemius | Bishop of Angers | 20/11 | |
| App(h)ian | Phoenicia | d306 | 02/02 |
| Appian | Italy/Dalmatia | d c800 | 04/03 |
| Appolin | 03/07 | ||
| Appollonius | 10/04 | ||
| Apra | 13/12 | ||
| Apronia/Evronie | sister of Aprus | C5/6th | 15/07 |
| Apronius | Rome/Ancona | d c304 | 02/02 |
| Aprunculus | 22/04 | ||
| Aprus/Aper/Epvre/Epre | Bishop of Toul | d507 | 15/09 |
| Apuleius, Marcellus, Sergius + Bacchus | followers of Simon Magus | C1st | 07/10 |
| Aquila + Priscilla | Bible, Acts | 08/07 | |
| Aquila | Egypt, martyr | d311 | 20/05 |
| Aquileia | 24/04 | ||
| Aquilina | virgin martyr, Byblos/Biblus | c293 | 13/06, 18/06 |
| Aquilinus | Bavaria, Milan | d650 | 29/01 |
| Aquilinus | Bishop of Evreux | c620-95 | 19/10 (Translation 15/02, 18/07) |
| Aquilinus, Geminus, Eugene, Marcian, Quintus, Theodotus + Tryphon | killed by Vandals | c484 | 04/02 |
| Aquill(in)us | Bishop | 14/05 | |
| Arator | 4th Bishop of Verdun | d460 | 06/09 |
| Arator, Fortunatus, Felix, Silvius + Vitalis | Alexandria | 21/04 | |
| Arbogast/Arascach | Bishop of Strasbourg | d c678 | 21/07 |
| Arcadius | martyr, Mauretania | 12/01 | |
| Arcadius, Paulillus, Paschasius + Probus | Spaniards, Africa | d437 | 13/11 |
| Arcadius/Archadius | Bishop of Bourges | d c549 | 01/08 |
| Archangela (Eleanor) Girlani, Blessed | Carmelite prioress | 1460-94 | 13/02 |
| Archelais, Thecla + Susanna | virgin martyrs, Salerno | 293 | 18/01 |
| Archelaus | 23/08 | ||
| Archelaus | Bishop in Kashkar | d278 | 26/12 |
| Archippus | Bishop (of Colossne) comp of St Paul | C1st | 20/03 (Orth 19/02) |
| Arcontius | Bishop of Viviers, martyr | C8th/9th | 19/01 |
| Ardalion | martyr | c300 | 14/04 |
| Ardanus/Ardaing/Ardan/Ardagne | Abbot of Tournus/Autun | d1048 | 11/02 |
| Ardo (Smaragdus) | from Languedoc, Abbot of Aachen | d843 | 07/03 |
| Arduinus | priest, Rimini | d1009 | 15/08 |
| Arduinus/Ardwyne/Ardoin | English pilgrim, Trepino | C7th | 28/07 |
| Aredius | See Yrieix | 25/08 | |
| Aredius | Archbishop of Lyons | d614 | 10/08 |
| Aresius + comps, incl Rogatus | early martyrs, Africa | 10/06 | |
| Aretas + 504 comps | early martyrs, Rome | 01/10 | |
| Aretius + Dacian | Roman martyrs | 04/06 | |
| Argariarga | of Ireland + Brittany | d c650 | 09/09 |
| Argeus, Narcissus + Marcellinus | Tomi in Pontus | d320 | 02/01 |
| Argymirus | martyr Cabra, Spain | d858 | 28/06 |
| Argyre | the Neomartyr (Orth) | 30/04 | |
| Ariadne | of Phrygia | d130 | 17/09 |
| Arialdus/o | Milan | d1066 | 27/06 |
| Arian, Theoticus + 2 comps | Alexandria | d311 | 08/03 |
| Arigius | Bishop of Gap | d604 | 01/05 |
| Arigius | Bishop of Lyon | 10/08 | |
| Arilda | Wales | C6th | 19/07 |
| Arilda | virgin martyr, Gloucestershire | 30/10 (20/07) | |
| Arimalis | 09/10 | ||
| Aristarchos, Poudes + Trophimus | (Orth) 14/04 | ||
| Aristarchus | Bishop of Thessalonika, comp of St Paul | C1st | 04/08 |
| Aristides/Aristedes | Athens | C2nd | 31/08 |
| Aristion | disciple, martyr | C1st | 22/02 |
| Aristobulus/Aristovoulos | disciple & martyr (Bishop in Britain) | C1st | 15/03 |
| Ariston, Crescentian, Futychian, Urban, Vitalis, Justus, Felicissimus, Felix, Marcia + Symphorosa | Campania | c 284 | 03/07 |
| Armagillus/Armagil/Armael/Armel/Ermel/Ervan | Welsh missionary to Brittany | d c570 | 16/08 |
| Armand/Amand | Bishop of Maastricht | 584-676 | 06/02 |
| Armand/Amandus | Bishop of Bordeaux | d c431 | 18/06 |
| Armentarius | Bishop of Antibes, Provence | d c711 | 30/02 |
| Armentarius | Bishop of Pavia | d c451 | 30/02 |
| Armogastes, Archinimus + Saturas | martyrs to Vandals | c455 | 29/03 |
| Arnold | 14/03 | ||
| Arnold Jansen, Blessed | Germany | 1837-1909 | 15/02 |
| Arnold | Greek confessor to Charlemagne | d c800 | 08/07 |
| Arnulf | 28/03 | ||
| Arnulf | Archbishop of Mainz, martyr | d1150 | 01/07 |
| Arnulf | Bishop of Soissons | d 1087 | 15/08 |
| Arnulf | Hermit of Eynesbury | C9th | 22/08 |
| Arnulf | Monk in Piedmont, martyr | 840 | 31/10 |
| Arnulf/Arnulph | Bishop of Gap | d1070 | 19/09 |
| Arnulf/Arnulph | Bishop of Toul | d871 | 15/11 (17/11) |
| Arnulph/Arnold/Arnoald | Bishop of Metz | d c640 | 09/10 (Translation 18/07) |
| Arsacius/Ursacius | Persia | d358 | 16/08 + 12/11 (Translation 17/06) |
| Arsenius | the Great/the Roman/the Deacon, Egypt | d449 | 19/07 |
| Arsenius | 1st Bishop of Corfu | d959 | 19/01 |
| Artaldus/Arthaud | Carthusian, Bishop of Belley | 07/10 | |
| Artemas | 25/01 | ||
| Artemas | disciple of Paul (Bishop of Lystra) | C1st | 30/10 |
| Artemius and family | 06/06 | ||
| Artemius | Bishop of Clermont/Auvergne | d396 | 24/1 |
| Artemius | Bishop of Sens | d609 | 28/04 |
| Artemius/Artemiun | martyr, Alexandria | 20/10 | |
| Artemon | Bishop of Seleucia-in-Pisidia | (Orth) 24/03 | |
| Arthelais | virgin, Benevento | C6th | 03/03 |
| Arthur Francis Bell | 11/12 | ||
| Arwald, two sons of | martyrs, Isle of Wight | d686 | 22/04 |
| Asaph/Asaf/Asa | Bishop, Llanelwy, Wales | c600 | 01/05 |
| Asclas | martyr in Egypt | d287 | 23/01 |
| Asclepiades | Bishop of Antioch, martyr | d217 | 18/10 |
| Asella | 'flower of the Lord', virgin hermitess, Rome | d c406 | 06/12 |
| Ashley, Ralph | martyr, Worcestor | d1606 | 06/04 |
| Asicus see Tassach | |||
| Aspasius | Bishop of Eauze, nr Auch | d560 | 02/01 |
| Aspren | Bishop of Naples | C1st | 03/08 |
| Asteria + Grata | virgin martyrs, Bergamo | d307 | 10/08 |
| Asteriolus | 18/08 | ||
| Asterius + comps | Cilicia | d303 | 23/08 |
| Asterius | of Ostia, martyr | c223 | 21/10 |
| Asterius | Bishop of Amasea | 30/10 | |
| Asterius | Bishop of Petra | d c365 | 10/06 |
| Astius + comps | Bishop of Dynhachium, Macedonia | d117 | 07/07 |
| Athan | Bishop, Wales | C6th | 26/12 |
| Athanasia | Abbess of Timia, Greece | d860 | 14/08 |
| Athanasius | 13/10 | ||
| Athanasius Badzekuketta | Martyr of Uganda | d1886 | 03/06 |
| Athanasius | the Athonite | d963 | 05/07 |
| Athanasius | the Fuller | C1st/2nd | 06/09 |
| Athanasius | Abbot near Nicomedia | d818 | 22/08 |
| Athanasius | Bishop (of Sorrento) | 26/01 | |
| Athanasius | Bishop of Alexandria, Doctor of the Church | c295-373 | 02/05 |
| Athanasius | Bishop of Modon | d c885 | 31/01 |
| Athanasius | Bishop of Naples | c830-72 | 15/07 |
| Athanasius (+ Anthusa the elder, Charisius + Neophytus) | Bishop of Tarsus | d257 | 22/08 |
| Athanasius | Deacon of Jerusalem, martyr | d452 | 05/07 |
| Athelm | Archbishop of Canterbury | d923 | 08/01 |
| Athenodorus | Bishop in Pontus, bro of Greg. Thaumaturgus | d269 | 18/10 |
| Athenodorus | martyr in Mesopotamia | c304 | 11/11 |
| Athenogenes | martyr at Sebaste | c305 | 16/07 |
| Attala | Abbot of Taormina | d c800 | 03/04 |
| Attala/Attalia | Abbess in Salzburg | d741 | 03/12 |
| Attalus | Abbot of Bobbio | d627 | 10/03 |
| Atticus | Bishop of Constantinople | d425 | 08/01 |
| Atticus | martyr of Phrygia | 06/11 | |
| Attilanus | Bishop of Zamora | d1009 | 05/10 |
| Atto | Abbot of Tordino | d1010 | 19/11 |
| Atto | Bishop of OcaVapuesta, Spain | d1014 | 01/06 |
| Atto | Bishop of Pistoia | d1153 | 22/05 |
| Attracta/Athracht/Araght/Taraghta | Abbess of Drum, Ireland | C6th | 11/08 (09/02) |
| Au(t)bert | Bishop of Avranches | d c725 | 10/09 (18/06) |
| Au(t)bert | Bishop of Cambrai-Arras | d669 | 13/12 (Elevation 24/01) |
| Aubert | 22/05 | ||
| Auctor | Bishop of Trier | 20/08 | |
| Auctus + Taurion | martyrs, Amphipolis in Macedonia | 07/11 | |
| Aude | 18/11 | ||
| Audentius | 25/11 | ||
| Audoenus | Bishop of Rouen | (Translation) 05/05 14/05 | |
| Audomar | Bishop of Thérouanne | 08/06, 09/09, 16/08, (Invention 21/10) | |
| Auductua + Callisthene | 04/10 | ||
| Augulus (Aule) | bishop/martyr, London | d c303 | 07/02 |
| Augusta | virgin martyr, Trevino | C5th | 27/03 |
| Augustalus | Bishop ofGaul/Arles | d c450 | 07/09 |
| Augustine + Felicity | 17/11 | ||
| Augustine | 02/08 | ||
| Augustine Moi | Vietnam | d1839 | 19/12 |
| Augustine of Huy | Vietnam | d1839 | 13/06 |
| Augustine Ota, Blessed | Japan | d1622 | 25/09 |
| Augustine Webster | Tyburn | d1535 | 04/05 |
| Augustine | Bishop of Canterbury | d605 | 27/05, 26/05 (Conversion 05/05, Translation 06/09) |
| Augustine | Bishop of Hippo | 354-430 | 28/08 |
| Augustine/Augustinius | (Translation) 11/10 | ||
| Augustus Chapdelaine, Blessed | bFrance, dChina | 1814-56 | 27/02 |
| Augustus Schoffler | martyr in Indochina/Vietnam | 1822-51 | 01/03 |
| Augustus/Aout | Abbot of Bourges | C6th | 07/10 |
| Aura | 03/10 | ||
| Aurea | of Amiens, Abbess of Rouen | C8th | 06/10 |
| Aurea | Abbess of St Martial, Paris d667 | 04/10 | |
| Aurea | martyr (at Ostia) | d270 | 24/08 |
| Aurea | martyr at Cordoba | d856 | 19/07 |
| Aurea | nun near Villavelayo, Spain | 11/03 | |
| Aurelia | 25/09 | ||
| Aurelia | of Strassburg or Salzburg | d1027 | 15/10 |
| Aurelian(us) | Bishop of Arles | d551 | 16/06 |
| Aurelian | Archbishop of Lyons | d895 | 04/07 |
| Aurelian | Bishop of Limoges | C1st or 3rd | 10/05 |
| Aurelius | 13/09 | ||
| Aurelius | Bishop of Carthage | d429 | 20/07 |
| Aurelius | husband of Natalia | 27/07 | |
| Aureus + his sister, Justina + comps | Bishop of Mainz, martyred by Huns | 16/06 | |
| Ausonius | 1st Bishop of Angouleme | C1st or C3rd | 22/05 |
| Auspicius | 02/08 | ||
| Auspicius | Bishop of Trier (& Toul) | d c130 | 08/07 |
| Austell (Hoystill) | of Cornwall (dau Brychan) | C6th | 28/06 |
| Austindus | Archbishop of Auch | d1068 | 25/09 |
| Austreberta/Austroberta | 20/10 | ||
| Austreberta/Eustreberta | Abbess of Abbeville, Port-sur-Somme | 630-704 | 10/02, (07/02) |
| Austregisil/Outril/Vandrille | Bishop of Bourges | d624 | 20/05, 21/05 (Ordination 15/02) |
| Austremonius/Stremoine | Bishop of Clermont | C3rd | 01/11 (03/11) |
| Austriclianus | 15/10 | ||
| Autbodus | Irish missionary in France/ Belgium | d690 | 20/11 |
| Authaire | patron of La-Feste-sur-Jouarre | C7th | 22/04 |
| Autonomous | Italian bishop, Bithinia | d300 | 12/09 |
| Autor/Adinctor/Auteur/Auctor | Bishop of Metz | C5th | 09/08 |
| Auxanus/Ansano | Bishop of Milan | d568 | 03/09 |
| Auxentius | Roman soldier, Bishop of Mopsuestia, Cilicia | d321 | 18/12 |
| Auxentius/Auxentios | of the Mountain, hermit at Mt Skopa | d473 | 14/02 |
| Auxibius | Bishop of Soil, Cyprus | C1st | 19/02 |
| Auxilius, Isserninus + Secundius | Bishops in Ireland | 06/12 | |
| Ava | Abbess of Denain/Dinart (niece/dau of Pepin) | C9th | 29/04 |
| Ava/Avoy | Brittany | C3rd | 06/05 |
| Aventanus | Carmelite pilgrim | d1380 | 25/02 |
| Aventinus | Bishop of Chartres, bro of Solemnis | d520 | 04/02 |
| Aventinus/Avertin | deacon,Tours/Touraine | d1180 | 05/05 |
| Avia | virgin martyr | 21/10 | |
| Avitus (Aubrey) | martyr of Africa | 27/01 | |
| Avitus | 19/12, 23/06 | ||
| Avitus I | 18th Bishop of Clermont | d c600 | 21/08 |
| Avitus II | Bishop of Clermont | d689 | 21/02 |
| Avitus | Bishop of Auvergne | 21/08 | |
| Avitus | Bishop of Vienne son + successor of Isychius | d520 | 05/02 |
| Avitus | monk in Auvergne & nr Maine | d c530 | 17/06 |
| Aya | Belgium | C7th | 18/04 |
| Ayle | of Ireland, Missionary to Bavaria | d 650 | 30/08 |
| Aylwin | 03/05 | ||
| Aymard, Blessed | Abbot of Cluny | d965 | 05/10 |
| Azardes, Tharba + comps | 22/04 | ||
| Azas + c150 comps | Isauria | c304 | 19/11 |
| Azas | the Deacon | (Orth) 10/04 |
This collection of names was compiled by Kate Monk and is ©1997, Kate Monk.
Copies may be made for personal use only.