Day | Saints | Country | Year |
| December 11 |
| Saint Damasus I, pope |  Portugal | 384 |
| Blessed David von Himmerod, religious |  Germany | 1179 |
| Blessed Franco Lippi, religious |  Italy | 1291 |
| Blessed Ugolino Magalotti, religious | Italy | 1373 |
| Blessed Martín de San Nicolás Lumbreras Peralta, priest |  Japan | 1632 |
| Blessed Melchor de San Agustín Sánchez Pérez, priest | Japan | 1632 |
| Blessed Francis (Arthur Bell), priest |  England | 1643 |
| Blessed María del Pilar Villalonga Villalba, layperson |  Spain | 1936 |
| Blessed Kazimierz Tomasz Sykulski, priest |  Poland | 1942 |
| Saint María de las Maravillas de Jesús (María Maravillas Pidal Chico de Guzmán), religious | Spain | 1974 |
| December 12 |
| Saint Spyridon of Trimitonte (Spiridione), bishop |  Cyprus | 348 |
| Saint Finnian of Clonard, bishop |  Ireland | 549 |
| Saint Valery de Leuconay, abbot |  France | 622 |
| Saint Vicelino, bishop | Germany | 1154 |
| Blessed Corrado da Offida, religious | Italy | 1306 |
| Blessed Bartolo da San Gimignano Buonpedoni, priest | Italy | 1310 |
| Blessed Thomas Holland, priest | England | 1642 |
| Saint Simon Phan Ðắc Hòa, layperson |  Vietnam | 1840 |
| Blessed Benito Quintano Díez, priest | Spain | 1936 |
| December 13 |
| Saint Josse (Judocus), priest | France | 669 |
| Blessed Giovanni (Francesco Marinoni), priest | Italy | 1562 |
| Saint Jane Frances de Chantal (Jeanne-Françoise Frémiot), religious | France | 1641 |
| Blessed Antonio (Vincenzo Grassi), priest | Italy | 1671 |
| Saint Bartholomaeus Chŏng Mun-ho (정문호 바르톨로메오 / 鄭基植), layperson |  South Korea | 1866 |
| Saint Iosephus Petrus Han Wŏn-sŏ (한재권 요셉 / 韓若瑟), layperson | South Korea | 1866 |
| Saint Petrus Cho Hwa-sŏ (조화서 베드로 / 趙伯多祿), layperson | South Korea | 1866 |
| Saint Petrus Chŏng Wŏn-ji (정원지 베드로 / 鄭伯多祿), layperson | South Korea | 1866 |
| Saint Petrus Son Sŏn-ji (손선지 베드로 / 孫善智), layperson | South Korea | 1866 |
| Saint Petrus Yi Myŏng-sŏ (이명서 베드로 / 李在德), layperson | South Korea | 1866 |
| Blessed Maria Maddalena della Passione (Costanza Starace), religious | Italy | 1921 |
| Blessed Pius (Ludwik Bartosik), priest | Poland | 1941 |
| December 14 |
| Saint Agnello di Napoli, abbot | Italy | 596 |
| Blessed Adalbéron de Metz, bishop | France | 1005 |
| Blessed Bonaventura da Pistoia (Bonaventura Bonaccorsi), priest | Italy | 1315 |
| Saint John of the Cross (Juan de la Cruz de Yepes Álvarez), priest | Spain | 1591 |
| Saint Nimatullah (Youssef Kassab Al-Hardini), priest |  Lebanon | 1858 |
| Blessed Maria Teresa Ledóchowska, religious | Germany | 1876 |
| Blessed Mary Frances Schervier, religious | Germany | 1876 |
| Blessed Isidro Alonso Peña, religious | Spain | 1936 |
| Blessed Protasi Cubells Minguell, religious | Spain | 1936 |
| December 15 |
| Blessed Marino, abbot | Italy | 1170 |
| Blessed Maria Vittoria De Fornari Strata, religious | Italy | 1617 |
| Saint Virginia Centurione Bracelli, layperson | Italy | 1651 |
| Saint Maria Crocifissa (Paola Francesca Di Rosa), religious | Italy | 1855 |
| Blessed Carlo Steeb, priest | Italy | 1856 |
| Blessed Pau Gracia Sánchez, religious | Spain | 1936 |
| Blessed Ramón Eirín Mayo, religious | Spain | 1936 |
| Blessed Marija Jula (Kata Ivanišević), religious |  Bosnia and Herzegovina | 1941 |
| Blessed János Brenner, priest |  Hungary | 1957 |
| December 16 |
| Saint Judicaël, religious | France | 647 |
| Saint Évrard de Frioul, layperson | France | 866 |
| Saint Adon de Vienne, archbishop | France | 875 |
| Saint Adélaïde de Bourgogne (Adelheid von Burgund), layperson | France | 999 |
| Saint Macario di Collesano, religious | Italy | 1000 |
| Blessed Maria degli Angeli (Marianna Fontanella), religious | Italy | 1717 |
| Blessed Stephanus Kim Won-jung (김원중 스테파노), layperson | South Korea | 1866 |
| Blessed Clemente Marchisio, priest | Italy | 1903 |
| Blessed Honorat (Florentyn Wacław Koźmiński), priest | Poland | 1916 |
| Blessed Lamberto Carlos (Jaime Mases Boncompte), religious | Spain | 1936 |
| Blessed Filip Siphong Onphithakt (ฟิลิป สีฟอง อ่อนพิทักษ์), layperson |  Thailand | 1940 |
| Blessed Jean Wauthier, priest |  Laos | 1967 |
| December 17 |
| Saint Begge d’Andenne, abbess |  Belgium | 693 |
| Saint Sturmius, abbot | Germany | 779 |
| Saint Wivine de Grand-Bigard, abbess | Belgium | 1170 |
| Saint Jean de Matha, priest | France | 1213 |
| Saint Josep Manyanet i Vives, priest | Spain | 1901 |
| Blessed Matilde del Sagrado Corazón (Matilde Téllez Robles), religious | Spain | 1902 |
| Blessed Hyacinthe-Marie Cormier, priest | Italy | 1916 |
| Blessed José Mariano de los Ángeles (Mariano Alarcón Ruiz), priest | Spain | 1936 |
| December 18 |
| Saint Victoria, layperson | Italy | 253 |
| Saint Winibald (Wunibald), abbot | Germany | 761 |
| Saint Phaolô Nguyễn Văn Mỹ, layperson | Vietnam | 1838 |
| Saint Phêrô Trương Văn Ðường, layperson | Vietnam | 1838 |
| Saint Phêrô Vũ Văn Truật, layperson | Vietnam | 1838 |
| Blessed Nemesia (Giulia Valle), religious | Italy | 1916 |
| Blessed Eugenio Cernuda Febrero, priest | Spain | 1936 |
| Blessed Miguel Sanrromán Fernández, priest | Spain | 1936 |
| Blessed Michał Piaszczyński, priest | Germany | 1940 |
| December 19 |
| Saint Anastasius I, pope | Italy | 401 |
| Saint Berardo di Pagliara, bishop | Italy | 1122 |
| Blessed Urban V, pope | France | 1370 |
| Blessed Andreas Kim Jong-han (김종한 안드레아 / 金宗漢), layperson | South Korea | 1816 |
| Blessed Anna Yi Sim-i (이시임 안나 / 李時壬), layperson | South Korea | 1816 |
| Blessed Barbara Ku Seong-yeol (구성열 바르바라 / 具性悅), layperson | South Korea | 1816 |
| Blessed Franciscus Kim Hui-seong (김희성 프란치스코 / 金稀成), layperson | South Korea | 1816 |
| Blessed Iacobus Kim Hwa-chun (김화춘 야고보 / 金若古排), layperson | South Korea | 1816 |
| Blessed Iosephus Ko Seong-un (고성운 요셉 / 高聖云), layperson | South Korea | 1816 |
| Blessed Petrus Ko Seong-dae (고성대 베드로 / 高聖大), layperson | South Korea | 1816 |
| Saint Augustinô Nguyễn Văn Mới, layperson | Vietnam | 1839 |
| Saint Ðaminh Bùi Văn Úy, layperson | Vietnam | 1839 |
| Saint Phanxicô Xaviê Hà Trọng Mậu, layperson | Vietnam | 1839 |
| Saint Stêphanô Nguyễn Văn Vinh, layperson | Vietnam | 1839 |
| Saint Tôma Nguyễn Văn Ðệ, layperson | Vietnam | 1839 |
| Blessed Doroteu de Vilalba dels Arcs (Jordi Sampé Tarragó), priest | Spain | 1936 |
| Blessed Félix José (José Trilla Lastra), religious | Spain | 1936 |
| Blessed Fulgencio (Josep Albareda Ramoneda), priest | Spain | 1936 |
| Blessed Martí de Barcelona (Jaume Boguñá Casanova), priest | Spain | 1936 |
| Blessed Maria Ewa od Opatrzności (Bogumiła Noiszewska), religious |  Belarus | 1942 |
| Blessed Maria Marta od Jezusa (Kazimiera Wołowska), religious | Belarus | 1942 |
| Blessed René Dubroux, priest | Laos | 1959 |
| December 20 |
| Saint Gatien de Tours (Gatianus), bishop | France | 301 |
| Saint Domingo de Silos, abbot | Spain | 1073 |
| Saint Vincenzo Romano, priest | Italy | 1831 |
| Blessed Gabriel Olivares Roda, priest | Spain | 1936 |
