Day | Saints | Country | Year |
| March 1 |
| Saint David of Menevia, bishop |  Wales | 589 |
| Saint Suitbert of Kaiserswerth, bishop |  Germany | 713 |
| Saint Rosendo, bishop |  Spain | 977 |
| Blessed Giovanna Maria Bonomo, religious |  Italy | 1670 |
| Saint Agnes Cao Guiying (曹桂英．雅妮), layperson |  China | 1856 |
| Blessed Maria Sabina (Anna Thienel), religious |  Poland | 1945 |
| March 2 |
| Saint Chad of Mercia, bishop |  England | 672 |
| Blessed Charles the Good (Charles I de Flandre / Karl den Gode), layperson |  Hungary | 1127 |
| Saint Agnes of Bohemia (Anežka Česká / Prágai Ágnes), religious |  Czechia | 1282 |
| Saint Nicholas Owen, priest | England | 1606 |
| Saint Angela of the Cross (Ángela de la Cruz / María de los Ángeles Guerrero y González), religious | Spain | 1932 |
| Blessed Engelmar Unzeitig, priest | Germany | 1945 |
| March 3 |
| Saint Guénolé de Landévennec (Winwallus), abbot |  France | 532 |
| Saint Artelaide di Benevento, layperson | Italy | 567 |
| Saint Anselmo di Nonantola, abbot | Italy | 803 |
| Saint Cunigunde of Luxembourg (Kunigunde von Luxemburg), layperson | Germany | 1040 |
| Blessed Frederik van Hallum, abbot |  Netherlands | 1175 |
| Blessed Pietro Geremia, priest | Italy | 1452 |
| Blessed Giacomino de’ Canepacci, religious | Italy | 1508 |
| Blessed Liberat (Johannes Laurentius Weiss), priest |  Ethiopia | 1716 |
| Blessed Michele Pio Fasoli, priest | Ethiopia | 1716 |
| Blessed Samuele (Antonio Francesco Marzorati), priest | Ethiopia | 1716 |
| Blessed Pierre-René Rogue, priest | France | 1796 |
| Saint Teresa Eustochio (Ignazia Verzeri), religious | Italy | 1852 |
| Blessed Innocenzo da Berzo (Giovanni Scalvinoni), priest | Italy | 1890 |
| Blessed María Concepción “Conchita” Cabrera Arias de Armida, layperson |  Mexico | 1937 |
| Saint Katharine Drexel, religious |  USA | 1955 |
| March 4 |
| Saint Adrian of Nicomedia, layperson |  Turkiye | 306 |
| Saint Félix de Rhuys, abbot | France | 1038 |
| Saint Pietro Pappacarbone, bishop | Italy | 1123 |
| Blessed Humbert III de Savoie, layperson | France | 1189 |
| Saint Casimir (Kazimierz Jagiellończyk), layperson |  Belarus | 1484 |
| Blessed Alexander Blake, layperson | England | 1590 |
| Blessed Christopher Bales, priest | England | 1590 |
| Blessed Nicholas Horner, layperson | England | 1590 |
| Blessed Ana de Jesús (Ana de Lobera y Torres), religious |  Belgium | 1621 |
| Blessed Saint-Louis (Marie-Louise-Élisabeth de Lamoignon), religious | France | 1825 |
| Blessed Placide (Victoire Eulalie Viel), religious | France | 1877 |
| Saint Giovanni Antonio Farina, bishop | Italy | 1888 |
| Blessed Pedro Roca Toscas, religious | Spain | 1937 |
| Blessed Pedro Ruiz Ortega, religious | Spain | 1937 |
| Blessed Mieczysław Bohatkiewicz, priest | Belarus | 1942 |
| Blessed Stanisław Pyrtek, priest | Belarus | 1942 |
| Blessed Władysław Maćkowiak, priest | Belarus | 1942 |
| Blessed Daniel Dajani, priest |  Albania | 1946 |
| Blessed Gjelosh Lulashi, layperson | Albania | 1946 |
| Blessed Gjon Fausti, priest | Albania | 1946 |
| Blessed Gjon (Kolë Shllaku), priest | Albania | 1946 |
| Blessed Mark Çuni, layperson | Albania | 1946 |
| Blessed Qerim Sadiku, layperson | Albania | 1946 |
| Blessed Zoltán Lajos Meszlényi, bishop | Hungary | 1953 |
| March 5 |
| Saint Lucius I, pope | Italy | 254 |
| Saint Adrian of Batanea, layperson |  Israel | 308 |
| Saint Orante, layperson | Italy | 1431 |
| Blessed Cristoforo Macassoli, priest | Italy | 1485 |
| Blessed Jeremiah of Wallachia (Ieremia / Ioan Costişte), religious | Italy | 1625 |
| Saint Giovan Giuseppe della Croce (Carlo Gaetano Calosirto), priest | Italy | 1734 |
| Blessed Lazër Shantoja, priest | Albania | 1945 |
| March 6 |
| Saint Marziano, bishop | Italy | 120 |
| Saint Fridolin von Säckingen, abbot | Germany | 538 |
| Saint Julián, archbishop | Spain | 690 |
| Saint Eadberht, bishop | England | 698 |
| Saint Chrodegand de Metz, bishop | France | 766 |
| Blessed Olegario, archbishop | Spain | 1137 |
| Blessed Rosa da Viterbo, layperson | Italy | 1251 |
| Saint Colette de Corbie (Nicolette Boilet), abbess | Belgium | 1447 |
| March 7 |
| Saint Eubulus, layperson | Israel | 308 |
| Saint Aetherius, bishop |  Greece | 311 |
| Saint Agathodorus, bishop | Greece | 311 |
| Saint Basil, bishop | Greece | 311 |
| Saint Capiton, bishop | Greece | 311 |
| Saint Elpidius, bishop | Greece | 311 |
| Saint Ephraim, bishop | Greece | 311 |
| Saint Eugene, bishop | Greece | 311 |
| Saint Jean de Gorze, abbot | France | 974 |
| Saint Thomas Aquinas (Tommaso d’Aquino), priest | Italy | 1274 |
| Blessed German Gardiner, layperson | England | 1544 |
| Blessed John Ireland, priest | England | 1544 |
| Blessed John Larke, priest | England | 1544 |
| Saint Teresa Margherita (Anna Maria Redi), religious | Italy | 1770 |
| Saint María Antonia de San José (Antonia de Paz y Figueroa), religious |  Argentina | 1799 |
| Saint Bernard-Louis Beaulieu (볼리외 루도비코 / 徐沒禮), priest |  South Korea | 1866 |
| Saint Ioannes Baptista Nam Chong-sam (남종삼 요한 / 南鍾三), layperson | South Korea | 1866 |
| Saint Pierre-Henri Dorie (도리 헨리코 / 金神父), priest | South Korea | 1866 |
| Saint Siméon-François Berneux (베르뇌 시므온 / 張敬一), bishop | South Korea | 1866 |
| Saint Simon-Marie-Just Ranfer de Bretenières (랑페르 드 브르뜨니애르 유스토 / 白神父), priest | South Korea | 1866 |
| Blessed José Olallo Valdés, religious |  Cuba | 1889 |
| Blessed Leonid F’odorov (Леонід Фьодоров), priest |  Russia | 1935 |
| Blessed Manuel Vílchez Montalvo, priest | Spain | 1937 |
| Blessed Luc Sy, layperson |  Laos | 1970 |
| Blessed Maisam Pho Inpèng, layperson | Laos | 1970 |
| March 8 |
| Saint Senán mac Geirrcinn, bishop |  Ireland | 544 |
| Saint Felix of Burgundy, bishop | England | 647 |
| Saint Cataldo di Taranto, bishop | Italy | 685 |
| Saint Veremundo de Irache, abbot | Spain | 1092 |
| Saint Étienne d’Obazine, abbot | France | 1159 |
| Blessed Wincenty Kadłubek, bishop | Poland | 1223 |
| Saint Duthac of Ross, bishop |  Scotland | 1249 |
| Saint John of God (Juan de Dios), religious | Spain | 1550 |
| Blessed Ioachim Kurōemon (ジョアキム 九郎衛門), layperson |  Japan | 1624 |
| Saint Faustino de la Encarnación (Manuel Míguez González), priest | Spain | 1925 |
| March 9 |
| Saint Bosa, bishop | England | 705 |
| Saint Vitale di Castronovo, religious | Italy | 994 |
| Saint Frances of Rome (Francesca Romana / Francesca Ponziani), religious | Italy | 1440 |
| Saint Caterina da Bologna, religious | Italy | 1463 |
| Saint Dominic Savio (Domenico Savio), layperson | Italy | 1857 |
| Saint Ioannes Baptista Chŏn Chang-un (전장운 요한 / 全長雲), layperson | South Korea | 1866 |
| Saint Petrus Ch’oe Hyŏng (최형 베드로 / 崔炯), layperson | South Korea | 1866 |
| March 10 |
| Saint Simplicius, pope | Italy | 483 |
| Saint John Ogilvie, priest | Scotland | 1615 |
| Blessed Jean-Joseph (Alcide-Vital Lataste), priest | France | 1869 |
| Saint Marie-Eugénie de Jésus (Anne-Eugénie Milleret de Brou), religious | France | 1898 |
| Blessed Elias del Socorro (Mateo Elías Nieves Castillo), priest | Mexico | 1928 |
