| Celebration | Name | Saint | Birth | Death |
|---|---|---|---|---|
| 9 of January | Lucrecia | Saint Lucrecia of Córdoba | 859 Spain | |
| 16 of September | Ludmila | Saint Ludmila of Bohemia | 921 Czech republic | |
| 29 of March | Ludolfo | Saint Ludolfo of Ratzeburg | Germany | 1250 Germany |
| 13 of November | Luis | Saint Luis Versiglia | 1873 Italy | 1930 China |
| 22 of October | Lupencio | Saint Lupencio of Chalons | 684 France | |
| 30 of October | Lupercio | Saint Lupercio of León | 304 Spain | |
| 23 of August | Lupo | Saint Lupo of Nove | Italy | |
| 14 of October | Lúpulo | Saint Lúpulo of Capua | Italy | |
| 21 of August | Luxorio | Saint Luxorio of Cerdeña | France | |
| 8 of December | Macario | Saint Macario | Egypt | 250 Egypt |
| 20 of December | Macario | Saint Macario sacerdote y mártir | ||
| 15 of October | Magdalena | Saint Magdalena of Nagasaki | 1634 Japan | |
| 19 of August | Magín | Saint Magín of Tarragona | Spain | |
| 3 of December | Magina | Saint Magina | ||
| 16 of April | Magno | Saint Magno of las Órcadas | 1116 United kingdom | |
| 19 of August | Magno | Saint Magno of Aviñón | France | 660 Italy |
| 17 of August | Mamas | Saint Mamante of Cesárea | Turkey | |
| 5 of October | Mamlaca | Saint Mamlaca | 343 | |
| 21 of May | Mancio | Saint Mancio | Portugal | |
| 28 of November | Mansueto | Saint Mansueto of Uruci | ||
| 17 of September | Manuel | Saint Manuel Nguyen Van Trieu | 1798 Viet nam | |
| 19 of April | Mapálico | Saint Mapálico | 250 Tunisia | |
| 2 of June | Marcelino | Saint Marcellinus and Saint Peter | ||
| 18 of June | Marcelino | Saint Marcellian of Rome | 286 Italy | |
| 13 of September | Marcelino | Saint Marcelino of Cartago | 413 | |
| 7 of October | Marcelo | Saint Marcelo of Capua | Italy | |
| 30 of October | Marcelo | Saint Marcellus of Tangier | Spain | 298 Mauritania |
| 14 of August | Marcelo | Saint Marcelo of Apamea | 390 Syrian arab republic | |
| 4 of September | Marcelo | Saint Marcelo of Chalons-sur-Saone | France | |
| 2 of July | Marcia | Saint Marcia mártir | 285 Italy | |
| 11 of July | Marciana | Saint Marciana of Mauritania | 303 Mauritania | |
| 11 of July | Marciano | Saint Marciano of Iconio | Turkey | |
| 6 of March | Marciano | Saint Marciano of Tortona | Italy | |
| 18 of June | Marcos | Saint Mark of Rome | 286 Italy | |
| 3 of July | Marcos | Saint Marcos of Mesia | Italy | |
| 7 of July | Marcos | Saint Marcos Ji Tianxiang | 1900 China | |
| 25 of April | Marcos | Saint Mark Evangelist | Israel | 68 Israel |
| 25 of November | Márculo | Saint Márculo | Tunisia | 347 Tunisia |
| 13 of December | Mardario | Saint Mardario | ||
| 25 of March | Margarita | Saint Margarita Clitherow | 1586 United kingdom | |
| 12 of November | Margarito | Saint Margarito Flores | 1899 Mexico | 1927 Mexico |
| 20 of July | María | Saint María Fu Guilin | 1900 China | |
| 28 of June | María | Saint María Du Zhaozhi | 1900 China | |
| 6 of July | María | Saint Mary Goretti | 1890 Italy | 1902 Italy |
| 7 of July | María | Saint María Guo Lizhi y compañeros | 1900 China | |
| 24 of November | María | Saint Mary of Cordoba | Spain | 856 Spain |
| 11 of November | Marina | Saint Marina of Omura | 1634 Japan | |
| 21 of November | Marino | Saint Marino of Porec | Croatia (Hrvatska) | |
| 3 of March | Marino | Saint Marino of Cesarea | 260 Israel | |
| 8 of August | Marino | Saint Marino of Anazarbe | 311 Turkey | |
| 27 of March | Marolas | Saint Marolas | ||
| 15 of April | Marón | Saint Marón of Piceno | Italy | |
| 19 of April | Marta | Saint Marta Mártir | 341 Turkey | |
| 2 of December | Martana | Saint Martana | ||
| 13 of April | Martín | Saint Martín I papa | Italy | 656 Italy |
| 30 of January | Martina | Saint Martina of Rome | Italy | Italy |
| 2 of July | Martiniano | Saint Martiniano mártir | ||
| 22 of April | Maryahb | Saint Maryahb | 341 Iraq | |
| 11 of May | Mateo | Saint Mateo Lê Van Gâm | Viet nam | 1847 Viet nam |
| 22 of January | Mateo | Saint Mateo Alonso of Leciana | 1745 Viet nam | |
| 6 of February | Mateo | Saint Mateo Correa | 1927 Mexico | |
| 21 of September | Mateo | Saint Matthew Apostle and Evangelist | Israel | 34 Turkey |
| 30 of May | Matías | Saint Matías Kalemba | Uganda | 1886 Uganda |
| 25 of March | Matrona | Saint Matrona of Tesalónica | Macedonia, the former yugoslav republic of | |
| 14 of May | Matthias | Saint Matthias apostle | 0 Israel | 80 Georgia |
| 30 of November | Maura | Saint Maura vírgen y mártir | ||
| 3 of May | Maura | Saint Maura of Antinoe | Egypt | |
| 25 of November | Maurino | Saint Maurino | France | France |
| 22 of November | Mauro | Saint Mauro Mártir | Italy | 284 Italy |
| 10 of December | Mauro | Saint Mauro | Italy | Italy |
| 13 of November | Maxelendis | Saint Maxelendis of Cambrai | 670 France | |
| 26 of March | Máxima | Saint Máxima | Hungary | 304 Hungary |
| 12 of March | Maximiliano | Saint Maximilian of Tebessa | 295 Algeria | |
| 26 of August | Maximiliano | Saint Maximiliano of Roma | Italy | |
| 14 of August | Maximiliano | Saint MaximilianKolbe | 1894 Poland | 1941 Poland |
| 14 of May | Máximo | Saint Máximo of Asia | 250 Turkey | |
| 30 of October | Máximo | Saint Máximo of Cuma | 303 Italy | |
| 19 of November | Máximo | Saint Máximo of Cesarea | 255 Turkey | |
| 6 of December | Mayórico | Saint Mayórico | 484 | |
| 11 of May | Mayulo | Saint Mayulo of Bizacena | Tunisia | |
| 28 of July | Melchor | Saint Melchor García Sampedro | 1858 Viet nam | |
| 3 of July | Memnón | Saint Memnón of Bizia | Turkey | |
| 7 of September | Memorio | Saints Memorio of Breuil y compañeros | France | |
| 11 of November | Menas | Saint Menas of Egipto | Egypt | 304 Egypt |
| 24 of July | Meneo | Saint Meneo of Licia | Italy | |
| 15 of March | Menigno | Saint Menigno | 250 Turkey | |
| 12 of December | Mercuria | Saint Mercuria | ||
| 25 of November | Mercurio | Saint Mercurio | Turkey | 250 Turkey |
| 20 of June | Metodio | Saint Metodio of Olimpo | Turkey | 312 |
| 31 of January | Metrano | Saint Metrano | 249 Egypt | |
| 24 of December | Metrobio | Saint Metrobio mártir | ||
| 7 of August | Miguel | Saint Miguel of la Mora | Mexico | |
| 22 of November | Miguel | Saint Miguel of Tver | Russian federation | 1318 Russian federation |
| 22 of May | Miguel | Saint Miguel Ho Dihn Hy | China | 1857 China |
| 22 of April | Miles | Saint Miles | ||
| 23 of August | Minervo | Saint Minervo mártir | ||
| 25 of October | Miniato | Saint Miniato of Florencia | Italy | |
| 17 of August | Mirón | Saint Mirón of Cizico | Greece | |
| 13 of July | Miropa | Saint Miropa of Chíos | Greece | |
| 11 of May | Mocio | Saint Mocio of Bizancio | Turkey |