| Celebration | Name | Saint | Birth | Death |
|---|---|---|---|---|
| 5 of June | Boniface | Saint Boniface of Crediton | 672 United kingdom | 754 Netherlands |
| 6 of December | Boniface | Saint Boniface Sibidense | 484 | |
| 21 of August | Bonose | Saint Bonose of Antioch | 308 Syrian arab republic | |
| 28 of July | Botvid | Saint Botvid of Sweden | Sweden | 1120 Sweden |
| 9 of March | Bruno | Saint Bruno, bishop and martyr companions | 1009 | |
| 1 of November | Caesarius | Saint Caesarius of Tarracina | Italy | |
| 4 of January | Caius | Saint Caius martyr | Italy | Romania |
| 10 of May | Calepodius | Saint Calepodius presbyterian | ||
| 8 of June | Calíopa | Saint Calíopa mártir | ||
| 14 of October | Calixto | Saint Callixtus I Pope | 155 Italy | 222 Italy |
| 29 of July | Callinicus | Saint Callinicus of Gangra | Turkey | |
| 7 of April | Calliope | Saint Calliope | Greece | |
| 26 of September | Callistratus | Saint Callistratus martyr | ||
| 13 of November | Callistus | Saint Callistus Caravario | 1903 Italy | 1930 China |
| 1 of December | Cándida | Saint Cándida | ||
| 3 of October | Cándida | Saint Cándida of Roma | Italy | |
| 25 of May | Canius | Saint Canius of Atella | Italy | |
| 19 of October | Canute | Saint Canute of Denmark | Denmark | 1086 Denmark |
| 7 of January | Canute | Saint Canute Lavard | 1131 Denmark | |
| 20 of October | Caprasius | Saint Caprasius of Agen | 303 Germany | |
| 28 of April | Caralippus | Saint Caralippus martyr | ||
| 28 of May | Caraunus | Saint Caraunus of Chartres | France | |
| 5 of October | Caritina | Saint Caritina of Corico | Italy | |
| 3 of June | Carlos | Saint Charles Lwanga and companions | 1865 Uganda | 1886 Uganda |
| 14 of October | Carponius | Saint Carponius martyr | Italy | Italy |
| 2 of November | Carterius | Saint Carterius of Sebaste y compañeros | 320 Armenia | |
| 13 of August | Cassian | Saint Cassian of Imola | Italy | |
| 3 of December | Cassian | Saint Cassian of Tangier | Mauritania | 300 Mauritania |
| 28 of March | Castor | Saint Castor of Tarsus | Turkey | |
| 11 of February | Castrensis | Saint Castrensis | Italy | |
| 26 of March | Castulus | Saint Castulus, martyr | Italy | Italy |
| 25 of November | Catalina | Saint Catherine of Alexandria | Egypt | Egypt |
| 15 of July | Catulinus | Saint Catulinus and companions | 303 | |
| 23 of November | Cecilia | Saint Cecilia Yu So-sa | Korea, republic of | 1839 Korea, republic of |
| 22 of November | Cecilia | Saint Cecilia of Rome | Italy | 180 Italy |
| 1 of February | Cecilio | Saint Cecilio of Granada | Spain | |
| 3 of March | Celedonius | Saint Celedonius of Calahorra | Spain | |
| 3 of February | Celerinus | Saint Celerinus of Cartaghe | Tunisia | |
| 2 of August | Centolla | Saint Centolla mártir | Spain | |
| 4 of July | Cesidio | Saint Cesidio Giacomantonio | 1900 China | |
| 13 of June | Cetteus | Saint Cetteus of Amiterno | Italy | |
| 19 of October | Charles | Saint Charles Garnier | Canada | 1649 Canada |
| 19 of September | Charles | Saint Charles Hyon Song-mun | 1846 Korea, republic of | |
| 3 of April | Chrestus | Saint Chrestus of Tomis | Romania | |
| 11 of November | Christian | Saint Christian, monk and martyr | ||
| 20 of August | Christopher | Saint Christopher of Córdoba | 852 Spain | |
| 20 of April | Christophorus | Saint Christophorus | ||
| 3 of September | Chrodegang | Saint Chrodegang of Sées | France | |
| 25 of October | Chrysanthus | Saint Chrysanthus of Rome | 253 Italy | |
| 24 of November | Chrysogonus | Saint Chrysogonus of Aquileia | 304 Italy | |
| 22 of April | Chrysotelus | Saint Chrysotelus | ||
| 11 of July | Cindeus | Saint Cindeus of Pamphylia | ||
| 5 of July | Ciprila | Saint Ciprila of Cirene | Libyan arab jamahiriya | |
| 1 of November | Cirenia | Saint Cirenia mártir | ||
| 6 of July | Ciriaca | Saint Ciriaca of Nicomedia | Turkey | |
| 18 of May | Claudia | Saint Claudia, virgin and martyr | 303 Turkey | |
| 23 of August | Claudius | Saint Claudius of Egea | 303 Turkey | |
| 30 of October | Claudius | Saint Claudius of Leon | 304 Spain | |
| 3 of December | Claudius tribune | Saint Claudius tribune | ||
| 23 of November | Clement | Saint Clement I pope | Greece | 97 Greece |
| 23 of January | Clement | Saint Clement bishop and martyr | Turkey | |
| 12 of July | Clemente | Saint Clement Ignatius Delgado Cebrián | 1761 Spain | 1838 Viet nam |
| 3 of March | Cleonicus | Saint Cleonicus | Italy | |
| 26 of April | Cleto | Saint Cletus pope | 88 Italy | |
| 8 of February | Cointa | Saint Cointa | 249 Egypt | |
| 8 of July | Coloman | Saint Coloman of Turingia | 689 Germany | |
| 31 of December | Columba | Saint Columba virgen y mártir | France | |
| 17 of September | Columba | Saint Columba of Córdoba | 853 Spain | |
| 5 of March | Conon | Saint Conon | 250 Greece | |
| 19 of September | Constancia | Saint Constancia mártir | ||
| 11 of March | Constantine | Saint Constantine of Scotland | United kingdom | |
| 22 of October | Córdula | Saint Córdula mártir | ||
| 16 of September | Cornelio | Saint Cornelius Pope | 252 Italy | |
| 12 of September | Coronatus | Saint Coronatus bishop | ||
| 26 of September | Cosme | Saint Cosmas | Saudi arabia | Turkey |
| 5 of May | Crescenciana | Saint Crescenciana mártir | ||
| 2 of July | Crescenciano | Saint Cresceniano mártir | 285 Italy | |
| 24 of November | Crescentian | Saint Crescentian martyr | ||
| 15 of April | Crescentius | Saint Crescentius | Italy | |
| 3 of December | Crispin | Saint Crispin martyr | ||
| 5 of December | Crispin | Saint Crispin | ||
| 25 of October | Crispin | Saint Crispin of Soissons | Italy | 285 France |
| 5 of December | Crispina | Saint Crispina Tagorense | 304 | |
| 25 of October | Crispinian | Saint Crispinian of Soissons | Italy | 285 France |
| 27 of October | Cristeta | Saint Cristeta of Talavera | Spain | 304 Spain |
| 24 of July | Cristina | Saint Christina of Bolsena | Italy | 300 Italy |
| 13 of March | Cristina | Saint Christina | 559 | |
| 21 of May | Cristóbal | Saint Christopher Magallanes and companions | 1869 Mexico | 1927 Mexico |
| 10 of July | Cristóbal | Saint Christopher of Lycia | Israel | 251 Turkey |
| 25 of September | Cristopher | Saint Cristopher of La Guardia | 1490 Spain | |
| 27 of July | Cucufate | Saint Cucuphas | 270 Tunisia | 304 Spain |
| 30 of November | Cuthbert | Saint Cuthbert Mayne | United kingdom | 1577 United kingdom |
| 11 of July | Cyprian | Saint Cyprian of Brescia | Italy | |
| 2 of May | Cyriacus | Saint Cyriacus of Atalia | Turkey | |
| 4 of May | Cyriacus | Saint Cyriacus presbyter and martyr | ||
| 12 of May | Cyril | Saint Cyril of Mesia and martyr companions | Bulgaria | Bulgaria |
| 28 of March | Cyril | Saint Cyril of Heliopolos | 362 Lebanon | |
| 26 of September | Damián | Saint Damian | Saudi arabia | Turkey |
| 16 of January | Danacto | Saint Danacto | Albania | |
| 3 of January | Daniel | Saint Daniel deacon and martyr | 304 Italy |