| Celebration | Name | Saint | Birth | Death |
|---|---|---|---|---|
| 2 of January | Lorenzo | Blessed Laurent Batard | France | |
| 3 of January | Luciano | Saint Luciano | Italy | |
| 7 of January | Luciano | Saint Luciano Mártir | 312 Turkey | |
| 8 of January | Lorenzo | Saint Lorenzo Giustiniani | 1456 Italy | |
| 9 of January | Lucrecia | Saint Lucrecia of Córdoba | 859 Spain | |
| 11 of January | Leucio | Saint Leucio | Italy | |
| 15 of January | Luis | Blessed Louis Variara | 1875 Italy | 1923 Colombia |
| 16 of January | Leobato | Saint Leobato | France | |
| 19 of January | Launomaro | Saint Launomaro | 593 France | |
| 22 of January | Laura | Blessed Laura Vicuna | 1891 Chile | 1904 Argentina |
| 22 of January | Ladislao | Blessed Laszlo Batthyány-Strattmann | 1870 Hungary | 1931 Austria |
| 31 of January | Ludovica | Blessed Ludovica Albertoni | 1533 Italy | |
| 2 of February | Lorenzo | Saint Lorenzo of Canterbury | 619 United kingdom | |
| 3 of February | Lupicino | Saint Lupicino of Lyon | France | |
| 3 of February | Leonio | Saint Leonio of Poitiers | France | |
| 5 of February | Lucas | Saint Lucas, abad | 995 Italy | |
| 7 of February | Lucas | Saint Lucas el Joven | 955 Italy | |
| 7 of February | Lorenzo | Saint Lorenzo of Siponte | 545 Italy | |
| 8 of February | Lacuto | Saint Lacuto | France | |
| 10 of February | Luis | Blessed Aloysius Stepinac | 1960 Croatia (Hrvatska) | |
| 11 of February | Lourdes | Our Lady of Lourdes | ||
| 12 of February | Ludano | Saint Ludano, peregrino | United kingdom | 1202 France |
| 17 of February | Lucas | Blessed Luca Belludi | 1286 Italy | |
| 19 of February | Lucía | Saint Lucía Yi Zhenmei | China | 1862 China |
| 20 of February | León | Saint León of Catania | 787 Italy | |
| 27 of February | Lucas | Saint Lucas of Mesina | 1149 Italy | |
| 28 of February | Leandro | Saint Leander of Seville | 534 Spain | 601 Spain |
| 1 of March | León | Saint León of Vasconia | Spain | |
| 1 of March | León | Saint León Lucas | 900 Italy | |
| 2 of March | Lucas | Saint Lucas Casali of Nicosia | Italy | |
| 3 of March | Liberato | Blessed Liberato Weiss | 1716 Ethiopia | |
| 5 of March | Lucio | Saint Lucio, papa | 254 Italy | |
| 7 of March | Leónidas | Saint Leónidas Fëdorov | 1934 Russian federation | |
| 8 of March | Litifredo | Saint Litifredo | 874 Italy | |
| 12 of March | Luis | Saint Luis Orione | Italy | |
| 14 of March | Leobino | Saint Leobino of Chartres | 557 France | |
| 14 of March | Lázaro | Saint Lázaro of Milán | Italy | |
| 15 of March | Leocricia | Saint Leocricia | 859 Spain | |
| 15 of March | Luisa | Saint Luisa of Marillac | 1660 France | |
| 18 of March | Leobardo | Saint Leobardo | 593 France | |
| 22 of March | Lea | Saint Lea of Roma | Italy | 383 Italy |
| 25 of March | Lucía | Saint Lucía Filippini | 1732 Italy | |
| 26 of March | Ludgero | Saint Ludgero | Germany | Germany |
| 29 of March | Ludolfo | Saint Ludolfo of Ratzeburg | Germany | 1250 Germany |
| 30 of March | Luis | Blessed Luigi of Casaurea (Archangel) Palmentieri | 1885 Italy | |
| 30 of March | Leonardo | Saint Leonardo Murialdo | 1900 Italy | |
| 1 of April | Luis | Blessed Luigi Pavoni | 1784 Italy | 1848 Italy |
| 2 of April | Leopoldo | Blessed Leopold of Gaiche | 1815 Italy | |
| 3 of April | Luis | Saint Luis Scrosoppi | 1884 Italy | |
| 9 of April | Liborio | Saint Liborio | France | |
| 11 of April | Lanuino | Blessed Lanuinus | 1119 Italy | |
| 12 of April | Lorenzo | Blessed Laurent of Lisboa | Portugal | |
| 14 of April | Lidia | Saint Lidwina of Schiedam | 1380 Netherlands | 1433 Netherlands |
| 14 of April | Lamberto | Saint Lamberto of Lyon | 688 France | |
| 16 of April | Leónidas | Saint Leónidas compañeras mártires | ||
| 19 of April | León | Saint Leo IX pope | 1002 | 1054 |
| 22 of April | León | Saint León of Sens | France | |
| 22 of April | Leónidas | Saint Leónidas of Alejandría | 204 Egypt | |
| 27 of April | Liberal | Saint Liberal of Altino | ||
| 28 of April | Luis | Saint Louis Marie Grignon de Montfort | 1673 France | 1716 France |
| 28 of April | Luchesio | Blessed Luchesio | 1260 Italy | |
| 30 of April | Lorenzo | Saint Lorenzo of Novara | Italy | |
| 2 of May | Longinos | Saint Longinos | Mauritius | |
| 4 of May | Ladislao | Blessed Ladislas of Gielniow | 1505 Poland | |
| 5 of May | León | Saint León of Calabria | Italy | |
| 6 of May | Lucio | Saint Lucio of Cirene | Turkey | Turkey |
| 8 of May | Luján | Our Lady of Luján | ||
| 8 of May | Luis | Blessed Luigi Rabata | 1490 Italy | |
| 20 of May | Lucífero | Saint Lucífero of Cagliari | 370 France | |
| 20 of May | Lidia | Saint Lidia of Tiatira | ||
| 22 of May | Lupo | Saint Lupo of Limoges | 637 France | |
| 24 of May | Luis | Blessed Louis Zephirin Moreau | 1824 Canada | 1901 Canada |
| 25 of May | León | Saint León of Troyes | ||
| 26 of May | Lamberto | Saint Lamberto of Vence | 1154 Italy | |
| 28 of May | Lanfranco | Blessed Lanfranc of Canterbury | 1089 United kingdom | |
| 28 of May | Ladislao | Blessed Ladislaus Demski | 1884 Poland | 1940 Germany |
| 30 of May | Lucas | Saint Lucas Kirby | 1549 United kingdom | 1582 United kingdom |
| 1 of June | Luz | Our Lady of Light | ||
| 3 of June | Lifardo | Saint Lifardo | 550 France | |
| 6 of June | Lorenzo | Blessed Lawrence of Villamagna of Másculis | 1535 Italy | |
| 10 of June | Landerico | Saint Landerico of París | 657 France | |
| 12 of June | Luis | Blessed Alojzy Liguda | 1898 Poland | 1942 Germany |
| 12 of June | León | Saint León III papa | Italy | 816 Italy |
| 12 of June | Luis | Blessed Ludwik Mzyk | 1905 Poland | 1940 Poland |
| 15 of June | Luis | Blessed Luigi Maria Palazzolo | 1827 Italy | 1886 Italy |
| 15 of June | Lotario | Saint Lotario of Séez | 756 France | |
| 15 of June | Landelino | Saint Landelino | 686 France | |
| 16 of June | Lutgarda | Saint Lutgarda | 1246 Netherlands | |
| 18 of June | Leoncio | Saint Leoncio of Trípoli | Libyan arab jamahiriya | |
| 19 of June | Lamberto | Saint Lamberto of Zaragoza | Spain | |
| 21 of June | Luis | Saint Aloysius Gonzaga | 1568 Italy | 1591 Italy |
| 21 of June | Leufredo | Saint Leufredo | 738 France | |
| 23 of June | Lanfranco | Blessed Lanfranc of Pavía | 1194 Italy | |
| 27 of June | Luisa | Blessed Louise Therese Montaignac de Chauvance | 1820 France | 1885 France |
| 30 of June | Ladislaus | Saint Ladislaus of Hungary | 1040 Poland | 1095 Slovakia (slovak republic) |
| 30 of June | Lucina | Saint Lucina of Roma | Italy | |
| 2 of July | Lídano | Saint Lídano of Sezze | 1118 Italy | |
| 2 of July | Liberato | Saint Liberato abad y compañeros | 484 Tunisia | |
| 3 of July | León | Saint León II papa | 683 Italy | |
| 4 of July | Lauriano | Saint Lauriano of Vatan | France |