| Celebration | Name | Saint | Birth | Death |
|---|---|---|---|---|
| 2 of January | Telesforo | Saint Telesforo papa | 136 Italy | |
| 2 of January | Teodoro | Saint Teodoro obispo of Marsella | 594 France | |
| 3 of January | Teógeno | Saint Teógeno mártir | 320 Turkey | |
| 3 of January | Teopempo | Saint Teopempo | 304 Turkey | |
| 3 of January | Teonas | Saint Teonas | 304 Turkey | |
| 4 of January | Thomas | Blessed Thomas Plumtree | 1570 United kingdom | |
| 7 of January | Tilón | Saint Tilón | 702 France | |
| 9 of January | Teresa | Saint Teresa Kim | Korea, republic of | 1840 Korea, republic of |
| 11 of January | Tomás | Saint Thomas of Cori Placidi | 1729 | |
| 11 of January | Tipaso | Saint Tipaso | 298 Algeria | |
| 11 of January | Teodosio | Saint Teodosio cenobiarca | 529 Israel | |
| 12 of January | Tigrio | Saint Tigrio | 406 Turkey | |
| 12 of January | Tigrio | Saint Eutropio | 406 Turkey | |
| 15 of January | Tarsicia | Saint Tarsicia | France | |
| 16 of January | Triverio | Saint Triverio | 550 France | |
| 16 of January | Tiziano | Saint Tiziano | Italy | |
| 24 of January | Timothy | Blessed Timothy Giaccardo | 1948 Italy | |
| 26 of January | Tito | Saint Tito | ||
| 26 of January | Timoteo | Saint Timothy | ||
| 26 of January | Teógenes | Saint Teógenes, mártir | 257 Algeria | |
| 28 of January | Tomás | Saint Thomas Aquinas | 1225 Italy | 1274 Italy |
| 30 of January | Tomás | Saint Tomás Khuong | 1860 Viet nam | |
| 30 of January | Teófilo | Saint Teófilo, el Joven, mártir | 792 Cyprus | |
| 1 of February | Trifón | Saint Trifón, mártir | Turkey | |
| 2 of February | Teófano | Saint Teófano Vénard | France | 1861 Viet nam |
| 3 of February | Tigrido | Saint Tigrido | ||
| 7 of February | Thomas | Blessed Thomas Sherwood | 1578 United kingdom | |
| 7 of February | Teodoro | Saint Teodoro of Heraclea | ||
| 9 of February | Teliavo | Saint Teliavo | 560 Italy | |
| 10 of February | Troyano | Saint Troyano, obispo | 550 France | |
| 11 of February | Tobías | Blessed Tobías Borras Romeu | 1861 Spain | 1937 Spain |
| 17 of February | Teodoro | Saint Teodoro of Bizancius | 306 Turkey | |
| 18 of February | Tarasio | Saint Tarasio | 806 Turkey | |
| 18 of February | Teotonio | Saint Teotonio | 1162 Portugal | |
| 20 of February | Tiranión | Saint Tiranión | 311 Syrian arab republic | |
| 21 of February | Thomas | Blessed Thomas Portmort | 1592 United kingdom | |
| 24 of February | Thomas | Blessed Thomas Maria Fusco | 1831 Italy | 1891 Italy |
| 28 of February | Timothy | Blessed Timothy Trojanowski | Poland | |
| 2 of March | Troadio | Saint Troadio | 250 Italy | |
| 3 of March | Teresa | Saint Teresa Eustoquio Verzeri | 1852 Italy | |
| 3 of March | Ticiano | Saint Ticiano, obispo | 526 Italy | |
| 5 of March | Teófilo | Saint Teófilo of Cesarea | 195 Israel | |
| 7 of March | Teresa | Saint Teresa Margarita Redi | 1770 Italy | |
| 8 of March | Teofilacto | Saint Teofilacto | 840 Turkey | |
| 11 of March | Thomas | Blessed Thomas Atkinson | 1616 United kingdom | |
| 12 of March | Teófanes | Saint Teófanes Cronista | 817 Turkey | |
| 21 of March | Thomas | Blessed Thomas Pilchard | 1591 United kingdom | |
| 23 of March | Toribio | Saint Toribio de Mogrovejo | 1538 Spain | 1606 Peru |
| 25 of March | Thomas | Blessed Thomas of Costacciaro | 1337 Italy | |
| 27 of March | Teoprepides | Saint Teoprepides | ||
| 2 of April | Teodora | Saint Teodora Mártir | Lebanon | 307 |
| 3 of April | Turstan | Blessed Turstan Hunt | 1601 United kingdom | |
| 4 of April | Teodulo | Saint Teódulo | Macedonia, the former yugoslav republic of | |
| 9 of April | Thomas | Blessed Thomas of Tolentino | 1321 India | |
| 14 of April | Tomáide | Saint Tomáide | 476 Egypt | |
| 15 of April | Telmo | Saint Telmo Confessor | 1185 Spain | 1246 Spain |
| 15 of April | Teodoro | Saint Teodoro | 117 Greece | |
| 16 of April | Toribio | Saint Toribio | Spain | |
| 20 of April | Teodoro | Saint Teodoro Triquino | ||
| 22 of April | Teodoro | Saint Teodoro of Siceone | 613 Turkey | |
| 23 of April | Teresa | Blessed Teresa Maria of the Cross Menetti | 1910 Italy | |
| 27 of April | Teodoro | Saint Teodoro of Tabennesi | Egypt | |
| 29 of April | Torpetes | Saint Torpetes | Italy | |
| 29 of April | Tíquico | Saint Tíquico | ||
| 29 of April | Tertulia | Saint Tertulia virgen y mártir | ||
| 1 of May | Torcuato | Saint Torcuato y compañeros | Spain | Spain |
| 1 of May | Teodardo | Saint Teodardo | France | 893 France |
| 2 of May | Teodulo | Saint Teódulo of Atalia | Turkey | |
| 3 of May | Timoteo | Saint Timoteo of Antinoe | Egypt | 286 Egypt |
| 3 of May | Teodosio | Saint Teodosio of Kiev | 1074 Ukraine | |
| 5 of May | Teodoro | Saint Teodoro obispo | ||
| 9 of May | Thomas | Blessed Thomas Pickering | 1621 United kingdom | 1679 United kingdom |
| 14 of May | Teodora | Blessed Theodore Guerin | 1798 France | 1856 United States |
| 14 of May | Tuton | Blessed Tuton of Regensburg | Germany | Germany |
| 15 of May | Torcuato | Saint Torcuato obispo | ||
| 19 of May | Teófilo | Saint Teófilo of Corte | 1740 Italy | |
| 20 of May | Talaleo | Saint Talaleo | Italy | |
| 20 of May | Teodoro | Saint Teodoro of Pavía | 785 Italy | |
| 21 of May | Teobaldo | Saint Teobaldo of Vienne | 1001 France | |
| 21 of May | Timoteo | Saint Timoteo of Mauritania | Mauritania | |
| 1 of June | Theobald | Blessed Theobald Roggeri | Italy | 1150 Italy |
| 10 of June | Trípodes | Saint Trípodes mártir | ||
| 10 of June | Thomas | Blessed Thomas Green | 1537 United kingdom | |
| 13 of June | Trifilio | Saint Trifilio | 370 Cyprus | |
| 15 of June | Thomas | Blessed Thomas Reding | 1537 United kingdom | |
| 15 of June | Thomas | Blessed Thomas Scryven | 1537 United kingdom | |
| 16 of June | Ticón | Saint Ticón | Cyprus | |
| 17 of June | Therese | Saint Therese of Portugal | 1176 Portugal | 1250 Portugal |
| 19 of June | Thomas | Blessed Thomas Woodhouse | United kingdom | 1573 United kingdom |
| 20 of June | Thomas | Blessed Thomas Whitbread and companions | 1679 United kingdom | |
| 21 of June | Thomas | Blessed Thomas Corsini | 1343 Italy | |
| 22 of June | Tomás | Saint Thomas More | 1477 United kingdom | 1535 United kingdom |
| 23 of June | Tomás | Saint Tomás Garnet | 1608 United kingdom | |
| 24 of June | Teodulfo | Saint Teodulfo of Lobbes | 776 France | |
| 24 of June | Teodgaro | Saint Teodgaro of Vestervig | 1065 Denmark | |
| 25 of June | Tigris | Saint Tigris of Maurienne | France | |
| 27 of June | Tomás | Saint Tomás Toán | 1840 Viet nam | |
| 30 of June | Teobaldo | Saint Teobaldo of Salánica | France | 1066 Italy |
| 1 of July | Teodorico | Saint Teodorico of Mont-d'Or | 533 France | |
| 1 of July | Thomas | Blessed Thomas Maxfield | 1616 United kingdom |