Day | Saints | Country | Year |
| April 21 |
| Saint Apollonio di Roma, layperson |  Italy | 185 |
| Saint Beuno, abbot |  Wales | 640 |
| Saint Anselm of Canterbury, archbishop |  England | 1109 |
| Blessed Giovanni Saziari, layperson | Italy | 1372 |
| Blessed Bartolomeo Cerveri, priest | Italy | 1466 |
| Saint Konrad von Parzham, religious |  Germany | 1894 |
| Saint Román Adame Rosales, priest |  Mexico | 1927 |
| April 22 |
| Saint Caius, pope |  Croatia | 296 |
| Saint Agapetus I, pope | Italy | 536 |
| Saint Opportune de Montreuil, abbess |  France | 770 |
| Saint Senhorinha de Basto, abbess |  Portugal | 982 |
| Saint Bertwald, bishop | England | 1045 |
| Blessed Francesco Venimbeni, priest | Italy | 1322 |
| Blessed Bernard Perrin, layperson | France | 1945 |
| Blessed Ndoc Suma, priest |  Albania | 1958 |
| April 23 |
| Saint George, layperson |  Turkiye | 303 |
| Saint Eulogius of Edessa, archbishop | Turkiye | 386 |
| Saint Gérard de Toul, bishop | France | 994 |
| Saint Adalbert (Vojtech), bishop |  Czechia | 997 |
| Saint Giorgio, bishop | Italy | 1117 |
| Saint Jón Ögmundsson, bishop |  Iceland | 1121 |
| Blessed Egidio d’Assisi, religious | Italy | 1262 |
| Blessed Antonio da Monticiano (Antonio Patrizi), priest | Italy | 1311 |
| Blessed Elena Valentinis, religious | Italy | 1458 |
| Blessed José Torres Padilla, priest |  Spain | 1878 |
| Blessed Teresa Maria della Croce (Teresa Adelaide Manetti), religious | Italy | 1910 |
| Blessed Maria Gabriella Sagheddu, religious | Italy | 1939 |
| April 24 |
| Saint Mellitus of Canterbury, archbishop | England | 624 |
| Saint Fidelis (Markus Roy von Sigmaringen), priest |  Switzerland | 1622 |
| Saint Marie-Euphrasie (Rose Virginie Pelletier), religious | France | 1868 |
| Saint Benedict Menni (Benedetto / Angelo Ercole Menni Figini), priest | France | 1914 |
| Blessed Jean Chavet, layperson | France | 1945 |
| Saint Maria Elizabeth Hesselblad, religious | Italy | 1957 |
| April 25 |
| Saint Franca di Piacenza, abbess | Italy | 1218 |
| Blessed Bonifacio di Valperga, bishop | Italy | 1243 |
| Blessed Robert Anderton, priest | England | 1586 |
| Blessed William Marsden, priest | England | 1586 |
| Saint Pedro de San José de Betancur, religious |  Guatemala | 1667 |
| Blessed Ioannes Won Gyeong-do (원경도 요한 / 元景道), layperson |  South Korea | 1801 |
| Blessed Marcellinus Choe Chang-ju (최창주 마르첼리노 / 崔昌周), layperson | South Korea | 1801 |
| Blessed Martinus Yi Jung-bae (이중배 마르티노 / 李中培), layperson | South Korea | 1801 |
| Saint Giovanni Battista Piamarta, priest | Italy | 1913 |
| Blessed Andrés Solá Molist, priest | Mexico | 1927 |
| Blessed Antonio Pérez Lários, layperson | Mexico | 1927 |
| Blessed José Trinidad Rangél Montaño, priest | Mexico | 1927 |
| Blessed Henri Euzenat, layperson | France | 1945 |
| Blessed Mario Borzaga, priest |  Laos | 1960 |
| Blessed Paul Thoj Xyooj Paj Lug, layperson | Laos | 1960 |
| April 26 |
| Saint Riquier de Centule, priest | France | 645 |
| Saint Guglielmo, religious | Italy | 1146 |
| Saint Pellegrino, religious | Italy | 1146 |
| Blessed Julio Junyer Padern, priest | Spain | 1938 |
| Saint Rafael Arnáiz Barón, religious | Spain | 1938 |
| Blessed Stanisław Kubista, priest | Germany | 1940 |
| Blessed Louis (Joseph Paraire), religious | France | 1945 |
| April 27 |
| Saint Eusebius, bishop | Croatia | 258 |
| Saint Polyon, layperson | Croatia | 304 |
| Saint Liberale d’Altino, religious | Italy | 437 |
| Saint John of Catari, abbot | Turkiye | 835 |
| Saint Liutbert, bishop | Germany | 871 |
| Saint Zita di Lucca, layperson | Italy | 1278 |
| Saint Pedro Armengol, religious | Spain | 1304 |
| Blessed Jakov Zadranin, religious | Italy | 1496 |
| Blessed Ozana Kotorska (Caterina Kosić), layperson |  Montenegro | 1565 |
| Blessed Nicolas Roland, priest | France | 1678 |
| Blessed Iacobus Yun Yu-o (윤유오 야고보 / 尹有五), layperson | South Korea | 1801 |
| Saint Laurensô Nguyễn Văn Hưởng, priest |  Vietnam | 1856 |
| Blessed María Antonia Bandrés y Elósegui, religious | Spain | 1919 |
| Blessed Jean Préhu, layperson | France | 1945 |
| Blessed Joseph Outhay Phongphumi, layperson | Laos | 1961 |
| Blessed Noël Tenaud, priest | Laos | 1961 |
| April 28 |
| Saint Adaldago, archbishop | Germany | 988 |
| Saint Hugues de Cluny, abbot | France | 1109 |
| Saint Cyril of Turov, layperson |  Belarus | 1182 |
| Blessed Lucchese Modestini da Poggibonsi, religious | Italy | 1260 |
| Saint Louis-Marie Grignion de Montfort, priest | France | 1716 |
| Blessed Marie-Louise Trichet, religious | France | 1759 |
| Saint Gioan Baotixita Ðinh Văn Thành, layperson | Vietnam | 1840 |
| Saint Phaolô Phạm Khắc Khoan, priest | Vietnam | 1840 |
| Saint Phêrô Nguyễn Văn Hiếu, layperson | Vietnam | 1840 |
| Saint Pierre Louis Marie Chanel, priest |  Wallis and Futuna | 1841 |
| Blessed Józef Cebula, priest |  Austria | 1941 |
| Blessed María Felicia de Jesús Sacramentado (María Guggiari Echeverría), religious |  Paraguay | 1959 |
| Saint Gianna Beretta Molla, layperson | Italy | 1962 |
| April 29 |
| Saint Aimé de Sens, archbishop | France | 690 |
| Saint Wilfrid, bishop | England | 745 |
| Blessed Humbert of Savoy, bishop | France | 1220 |
| Saint Catherine of Siena (Caterina di Jacopo di Benincasa), religious | Italy | 1380 |
| Saint Antonius Kim Sŏng-u (김성우 안토니오 / 金星禹), layperson | South Korea | 1841 |
| Blessed René Boitier, layperson | France | 1945 |
| Blessed Maria della Trinità (Itala Mela), layperson | Italy | 1957 |
| Blessed Hanna Chrzanowska, layperson |  Poland | 1973 |
| April 30 |
| Blessed Pietro Levita, deacon | Italy | 605 |
| Saint Amador de Tucci, priest | Spain | 855 |
| Saint Luis de Córdoba, layperson | Spain | 855 |
| Saint Pedro de Córdoba, religious | Spain | 855 |
| Saint Forannan de Waulsort, bishop |  Belgium | 982 |
| Saint Gualfardo di Verona (Wolfhard von Augsburg), religious | Italy | 1127 |
| Saint Adjutor de Vernon, religious | France | 1131 |
| Blessed Miles Gerard, priest | England | 1590 |
| Blessed William Southerne, priest | England | 1618 |
| Blessed Benedetto da Urbino (Marco Passionei), priest | Italy | 1625 |
| Saint Marie de l’Incarnation (Marie Guyart), religious |  Canada | 1672 |
| Saint Giuseppe Benedetto Cottolengo, priest | Italy | 1842 |
| Saint Giuse Tuân, priest | Vietnam | 1861 |
| Blessed Paulina Von Mallinckrodt, religious | Germany | 1881 |
| Blessed Dedë Plani, priest | Albania | 1948 |
