| Celebration | Name | Saint | Birth | Death |
|---|---|---|---|---|
| 2 of July | Sinforosa | Saint Sinforosa mártir | 285 Italy | |
| 2 of July | Swithun | Saint Suituno of Winchester | 862 United kingdom | |
| 5 of July | Stephen | Saint Stephen of Nicea | Italy | |
| 6 of July | Sísoes | Saint Sísoes of Egipto | 429 Egypt | |
| 6 of July | Susana | Blessed Susanne Agatha and companions | 1794 France | |
| 11 of July | Sabino | Saint Sabino of Brescia | Italy | |
| 11 of July | Sidronio | Saint Sidronio of Sens | ||
| 11 of July | Sigisberto | Saint Sigisberto of Disentis | Switzerland | |
| 13 of July | Sara | Saint Sara, abadesa | Libyan arab jamahiriya | Libyan arab jamahiriya |
| 13 of July | Silas | Saint Silas | ||
| 16 of July | Simon | Blessed Simon da Costa | 1570 France | |
| 16 of July | Sisenando | Saint Sisenando of Córdoba | 651 Spain | |
| 18 of July | Sinforosa | Saint Symphorosa and sons | 120 Italy | |
| 18 of July | Simeon | Blessed Simeon of Lipnica | 1482 Poland | |
| 19 of July | Stilla | Blessed Stilla of Marienburg | 1140 Germany | |
| 19 of July | Símaco | Saint Símaco of Roma papa | 514 Italy | |
| 22 of July | Síntiques | Saint Síntiques of Filipos | Macedonia, the former yugoslav republic of | |
| 23 of July | Severo | Saint Severo of Bizia | 304 Turkey | |
| 24 of July | Sarbelio | Saint Sarbelio Makhluf | 1898 | |
| 24 of July | Sigolena | Saint Sigolena of Albi | France | |
| 25 of July | Santiago | James the Greater, Apostle | Israel | 44 Israel |
| 26 of July | Simeón | Saint Simeón of Mantua | 1016 Italy | |
| 27 of July | Simeón | Saint Simeon Stylites | 459 Syrian arab republic | |
| 27 of July | Semproniana | Saint Semproniana of Iluro | Spain | |
| 28 of July | Sansón | Saint Saintsón of Dol | 565 France | |
| 29 of July | Serafina | Saint Serafina of Galicia | Spain | |
| 30 of July | Senén | Saint Senén of Roma | Italy | |
| 30 of July | Sergio | Blessed Sergio Cid Pazo | 1884 Spain | 1936 Spain |
| 31 of July | Sidonia | Blessed Zdenka Schelingova | 1955 Slovakia (slovak republic) | |
| 1 of August | Severo | Saint Severo of Aquitania | France | |
| 1 of August | Secundino | Saint Secundino mártir | Italy | |
| 2 of August | Stephen | Saint Stephen I Pope | 257 Italy | |
| 2 of August | Sereno | Saint Sereno of Marsella | 601 France | |
| 3 of August | Salvador | Blessed Salvador Ferrandis Segui | 1880 Spain | 1936 Spain |
| 7 of August | Sixto | Saint Sixtus II Pope | 258 Italy | |
| 8 of August | Severo | Saint Severo of Vienne | France | |
| 11 of August | Susana | Saint Susana of Roma | Italy | |
| 14 of August | Sante | Blessed Sante of Urbino Brancoisini | 1390 Italy | |
| 15 of August | Simpliciano | Saint Simpliciano of Milán | 401 Italy | |
| 16 of August | Serena | Saint Serena of Roma | Italy | |
| 16 of August | Stephen | Saint Stephen of Hungary | Hungary | 1038 Hungary |
| 16 of August | Simon | Blessed Simon Bokusai Kiota y compañeros | Japan | 1620 Japan |
| 19 of August | Sebaldo | Saint Sebaldo of Nüremberg | Germany | |
| 19 of August | Sixto | Saint Sixto III papa | 440 Italy | |
| 20 of August | Samuel | Saint Samuel prophet | Israel | Israel |
| 21 of August | Salvador | Blessed Salvador Estrugo Solves | 1862 Spain | 1936 Spain |
| 21 of August | Sidonio | Saint Sidonio Apolinar | 479 France | |
| 22 of August | Simeon | Blessed Simeon Lukac | 1964 Ukraine | |
| 22 of August | Simfoniano | Saint Simfoniano | France | |
| 24 of August | Saint Bartholomew Apostle | Saint Bartolomé apóstol | Israel | India |
| 25 of August | Severo | Saint Severo of Agde | France | |
| 29 of August | Sebbo | Saint Sebbo of Inglaterra | 693 United kingdom | |
| 29 of August | Sabina | Saint Sabina of Roma | 432 Italy | |
| 29 of August | Sancha | Blessed Sancja Szymkowiak | 1910 Poland | 1942 Poland |
| 1 of September | Sixto | Saint Sixto | Belgium | |
| 2 of September | Siagrio | Saint Siagrio of Autun | France | |
| 3 of September | Sandalio | Saint Saintdalio of Córdoba | Spain | |
| 7 of September | Sozonte | Saint Sozonte of Cilicia | Turkey | |
| 7 of September | Stephen | Saint Stephen of Chatillon | 1208 France | |
| 8 of September | Serafina | Blessed Seraphina Sforza | 1478 Italy | |
| 8 of September | Sergio | Saint Sergio I papa | Syrian arab republic | 701 Italy |
| 8 of September | Salvador | Blessed Salvador Mollar Ventura | 1896 Spain | 1936 |
| 10 of September | Salvio | Saint Salvio of Albi | 584 France | |
| 10 of September | Sebastian | Blessed Sebastian Kimura and companions | 1622 Japan | |
| 11 of September | Sacerdote | Saint Sacerdote of Lyon | 552 France | |
| 14 of September | Salustia | Saint Salustia of Roma | 251 Italy | |
| 17 of September | Sátiro | Saint Sátiro of Milán | 377 Italy | |
| 18 of September | Senario | Saint Senario of Avranches | France | |
| 19 of September | Secuano | Saint Secuano of Cestre | France | |
| 22 of September | Santino | Sainttino obispo | ||
| 22 of September | Salaberga | Saint Salaberga | 664 France | |
| 22 of September | Silvano | Saint Silvano of Levroux | France | |
| 23 of September | Sosso | Saint Sosso of Misena | 305 Italy | |
| 25 of September | Solemne | Saint Solemne of Chartres | 511 France | |
| 25 of September | Sergio | Saint Sergio of Radonez | 1314 Russian federation | 1392 Russian federation |
| 26 of September | Stephen | Saint Stephen of Rossano | 1001 Italy | |
| 26 of September | Senador | Saint Senador of Albano | Italy | |
| 26 of September | Sebastián | Saint Sebastián Nam I-gwan y compañeros | 1839 Korea, republic of | |
| 28 of September | Salonio | Saint Salonio of Ginebra | Switzerland | |
| 28 of September | Simón | Saint Simón of Rojas | 1552 Spain | 1624 Spain |
| 30 of September | Simón | Saint Simón of Crespy | 1082 Italy | |
| 30 of September | Sofía | Saint Sofía | ||
| 2 of October | Saturio | Saint Saturio of Numancia | 606 Spain | |
| 5 of October | Santos | Blessed Santos of Cora | 1392 Italy | |
| 6 of October | Ságar | Saint Ságar of Laodicea | 170 Turkey | |
| 7 of October | Sergio | Saint Sergio of Betsaloe | Syrian arab republic | |
| 9 of October | Sabino | Saint Sabino of Bigorre | France | |
| 11 of October | Santino | Saint Sainttino of Verdún | France | |
| 11 of October | Sármata | Saint Sármata of Tebaida | 357 | |
| 12 of October | Serafín | Saint Serafín of Monte Granario of Nicola | 1604 Italy | |
| 13 of October | Simberto | Saint Simberto of Augsburgo | 807 Germany | |
| 15 of October | Severo | Saint Severo of Tréveris | Belgium | |
| 20 of October | Sindulfo | Saint Sindulfo of Aussonce | France | |
| 21 of October | Severino | Saint Severino of Burdeos | France | |
| 23 of October | Severino | Saint Severino of Colonia | Germany | |
| 23 of October | Severino | Saint Severino Boecio | 524 Italy | |
| 24 of October | Senoco | Saint Senoco of Tours | 576 | |
| 26 of October | Sigebaldo | Saint Sigebaldo of Metz | 741 France | |
| 27 of October | Sabina | Saint Sabina of Talavera | Spain | 304 Spain |
| 28 of October | Simón | Saint Simon Apostle | Israel | Israel |