| Celebration | Name | Saint | Birth | Death |
|---|---|---|---|---|
| 1 of December | Hildeberto | Saint Hildeberto | ||
| 17 of June | Hipacio | Saint Hipacio of Bitinia | 446 Turkey | |
| 27 of February | Hipólito | Saint Hipólito | 0 | 770 France |
| 23 of May | Honorato | Saint Honorato of Subiaco | Italy | |
| 20 of October | Honorio | Saint Honoratus Abbot | Spain | Spain |
| 9 of April | Hugo | Saint Hugo | 730 France | |
| 29 of April | Hugo | Saint Hugh Abbot | 1109 France | |
| 17 of November | Hugo | Saint Hugo of Noaria | 1172 Italy | |
| 23 of January | Ildefonso | Saint Ildephonse | 667 Spain | |
| 6 of November | Iltuto | Saint Iltuto of Gales | 511 United kingdom | |
| 13 of May | Inés | Saint Inés of Poitiers | France | 588 France |
| 1 of June | Iñigo | Saint Íñigo of Oña | Spain | 1057 Spain |
| 24 of December | Irmina | Saint Irmina of Tréveris | France | 710 France |
| 18 of June | Isabel | Saint Isabel of Schönau | 1126 Germany | 1164 Germany |
| 24 of September | Isarno | Saint Isarno of Marsella | 1043 Italy | |
| 22 of July | Jerónimo | Saint Jerónimo of Pavía | Italy | |
| 1 of August | Jonato | Saint Jonato of Marchiennes | 690 Belgium | |
| 20 of June | Juan | Saint Juan of Matera | 1139 | |
| 12 of July | Juan | Saint John Gualbert | 985 Italy | 1073 Italy |
| 23 of July | Juan | Saint Juan Casiano | 435 France | |
| 10 of October | Juan | Saint Juan of Bridlington | 1379 United kingdom | |
| 28 of January | Juan | Saint Juan of Réome | 554 France | |
| 16 of March | Juan | Saint Juan Sordi | 1181 Italy | |
| 19 of March | Juan | Saint Juan of Parrano | Italy | Italy |
| 21 of March | Juan | Saint Juan of Valence | 1145 France | |
| 30 of March | Juan | Saint Juan Clímaco | Israel | 649 Israel |
| 27 of April | Juan | Saint Juan of Afusia | ||
| 22 of May | Juan | Saint Juan of Parma | Italy | |
| 13 of January | Kentigerno | Saint Kentigerno | 612 United kingdom | |
| 3 of June | Kevin | Saint Kevin of Glendalough | 498 Ireland | 618 Ireland |
| 9 of September | Kieran | Saint Kieran the younger | 516 Ireland | 556 Ireland |
| 5 of March | Kierano | Saint Kierano | 530 Ireland | |
| 8 of February | Lacuto | Saint Lacuto | France | |
| 14 of April | Lamberto | Saint Lamberto of Lyon | 688 France | |
| 19 of January | Launomaro | Saint Launomaro | 593 France | |
| 16 of January | Leobato | Saint Leobato | France | |
| 1 of March | León | Saint León Lucas | 900 Italy | |
| 25 of May | León | Saint León of Troyes | ||
| 12 of July | León | Saint León I abad | 1079 Italy | |
| 27 of November | Leonardo | Saint Leonardo | ||
| 13 of November | Leoniano | Saint Leoniano of Vienne | 518 France | |
| 21 of June | Leufredo | Saint Leufredo | 738 France | |
| 2 of July | Liberato | Saint Liberato abad y compañeros | 484 Tunisia | |
| 2 of July | Lídano | Saint Lídano of Sezze | 1118 Italy | |
| 5 of February | Lucas | Saint Lucas, abad | 995 Italy | |
| 27 of February | Lucas | Saint Lucas of Mesina | 1149 Italy | |
| 22 of October | Lupencio | Saint Lupencio of Chalons | 684 France | |
| 18 of August | Macario | Saint Macario of Bitinia | 850 Turkey | |
| 16 of December | Macario | Saint Macario of Collesano | Italy | 1005 Italy |
| 19 of January | Macario | Saint Macario el Grande | 390 Egypt | |
| 21 of April | Maelrubo | Saint Maelrubo | Ireland | 722 United kingdom |
| 6 of September | Magno | Saint Magno of Füssen | Germany | |
| 1 of May | Marculfo | Saint Marculfo | France | 558 France |
| 7 of December | Martín | Saint Martín abad | France | France |
| 16 of September | Martín | Saint Martín el Sacerdote | 1213 Spain | |
| 24 of October | Martín | Saint Martín of Vertou | France | |
| 19 of November | Matilde | Saint Matilde of Hackeborn | Germany | 1299 Germany |
| 18 of November | Maudeto | Saint Maudeto abad | France | |
| 29 of September | Mauricio | Saint Mauricio of Carnoet | 1191 France | |
| 10 of June | Maurino | Saint Maurino abad | ||
| 15 of January | Mauro | Saint Mauro abad | France | |
| 25 of October | Mauro | Saint Mauro of Pécs | 1070 Hungary | |
| 5 of May | Mauronto | Saint Mauronto of Marchiennes | 702 Belgium | |
| 21 of October | Mauronto | Saint Mauronto of Marsella | 780 France | |
| 26 of June | Maxencio | Saint Maxencio of Poitiers | 515 France | |
| 15 of December | Maximino | Saint Maximino abad | France | France |
| 27 of November | Máximo | Saint Máximo | France | 469 France |
| 20 of August | Máximo | Saint Máximo of Chinon | France | |
| 11 of May | Mayolo | Saint Mayeul of Cluny | 906 France | 994 France |
| 29 of August | Mederico | Saint Mederico of Autun | France | |
| 7 of July | Mel | Saint Mel Ruain | Ireland | 789 Ireland |
| 24 of April | Melito | Saint Melito | 624 United kingdom | |
| 22 of July | Meneleo | Saint Meneleo of Menat | France | |
| 27 of April | Meruvina | Saint Meruvina, abadesa | ||
| 21 of June | Meveno | Saint Meveno of Gaël | United kingdom | France |
| 23 of February | Milburga | Saint Milburga | 722 United kingdom | |
| 22 of October | Moderano | Saint Moderano of Berceto | 720 France | |
| 4 of November | Modesta | Saint Modesta of Tréveris | 680 France | |
| 28 of August | Moisés | Saint Moisés Etíope | Egypt | Egypt |
| 18 of April | Molasio | Saint Molasio | 638 Ireland | |
| 6 of July | Monena | Saint Monena | 517 Ireland | |
| 8 of August | Mummolo | Saint Mummolo of Burdeos | 678 France | |
| 9 of August | Nateo | Saint Nateo of Achad | Ireland | |
| 3 of April | Nicetas | Saint Nicetas of Medicio | 824 Turkey | |
| 26 of September | Nilo | Saint Nilo el Joven | Greece | 1004 Italy |
| 12 of November | Nilo | Saint Nilo of Ancira | 340 Turkey | |
| 2 of September | Nonoso | Saint Nonoso | 570 Italy | |
| 1 of January | Odilón | Saint Odilón of Cluny | 1049 France | |
| 18 of November | Odón | Saint Odo of Cluny | France | 942 France |
| 22 of April | Oportuna | Saint Oportuna | 770 France | |
| 15 of April | Ortario | Saint Ortario of Landelles | France | |
| 30 of March | Osburga | Saint Osburga | 1018 United kingdom | |
| 13 of December | Otilia | Saint Otilia | France | France |
| 16 of November | Otmaro | Saint Otmaro of Suiza | Switzerland | 759 Germany |
| 7 of March | Pablo | Saint Pablo el Simple | Egypt | |
| 9 of May | Pacomio | Saint Pacomio of Tebaida | Egypt | 348 Egypt |
| 10 of April | Paladio | Saint Paladio of Auxerre | 658 France | |
| 6 of October | Pardulfo | Saint Pardulfo of Guéret | 737 France | |
| 10 of July | Pascario | Saint Pascario of Nantes | France | |
| 26 of April | Pascasio | Saint Pascasio Radberto | 865 France |