| Celebration | Name | Saint | Birth | Death |
|---|---|---|---|---|
| Rocío | Our Lady of el Rocío | |||
| 4 of January | Rigoberto | Saint Rigoberto obispo | 743 France | |
| 4 of January | Rigomerio | Saint Rigomerio | France | |
| 5 of January | Roger | Blessed Roger | 1237 Italy | |
| 6 of January | Rafaela | Saint Rafaela María del Sagrado Corazón | 1925 Italy | |
| 7 of January | Raimundo | Saint Raymond of Peñafort | 1175 Spain | 1275 Spain |
| 13 of January | Remigio | Saint Remigio of Reims | 530 France | |
| 15 of January | Raquel | Saint Rachel | ||
| 15 of January | Romedius | Blessed Romedius | Italy | |
| 17 of January | Roselina | Saint Roselina | 1329 France | |
| 18 of January | Regina | Blessed Regina Protmann | 1613 Germany | |
| 19 of January | Remigio | Saint Remigio of Rouen | 762 France | |
| 1 of February | Raúl | Saint Raúl of Cambray | France | |
| 1 of February | Reginald | Blessed Reginald of Orleans | 1220 France | |
| 4 of February | Remberto | Saint Remberto obispo | ||
| 4 of February | Rabano | Saint Rabano "Mauro" | 856 Germany | |
| 6 of February | Renula | Saint Renula | France | |
| 7 of February | Ricardo | Saint Richard King | United kingdom | 720 Italy |
| 7 of February | Rosalía | Blessed Rosalie Rendu | 1856 France | |
| 7 of February | Ricerio | Blessed Ricerio of Muccia | 1200 Italy | 1236 Italy |
| 9 of February | Rainaldo | Saint Rainaldo | 1222 Italy | |
| 21 of February | Roberto | Saint Roberto Southwell | 1595 United kingdom | |
| 25 of February | Robert | Blessed Robert of Arbrisel | 1116 France | |
| 26 of February | Robert | Blessed Robert Drury | 1607 United kingdom | |
| 1 of March | Román | Saint Román | 463 France | |
| 1 of March | Rosendo | Saint Rosendo of Celanova | 977 Spain | |
| 6 of March | Rosa | Blessed Rose of Viterbo | 1253 Italy | |
| 13 of March | Ramiro | Saint Ramiro y compañeros mártires | Spain | |
| 15 of March | Raimundo | Saint Raymond of Fitero | France | 1163 Spain |
| 23 of March | Rebeca | Saint Rebeca of Himlaya | 1832 Lebanon | 1914 Lebanon |
| 27 of March | Ruperto | Saint Rupert of Worms | Germany | 718 Austria |
| 28 of March | Renata | Blessed Renee Marie Feillatreau | France | 1794 France |
| 30 of March | Régulo | Saint Régulo of Senlis | France | |
| 31 of March | Renato | Saint Renatus of Merida | Spain | 633 Spain |
| 3 of April | Richard | Saint Richard of Wyche | United kingdom | 1235 United kingdom |
| 3 of April | Robert | Blessed Robert Middleton | 1601 United kingdom | |
| 7 of April | Ralph | Blessed Ralph Ashley | 1606 United kingdom | |
| 17 of April | Roberto | Saint Roberto of Chaise-Dieu | 1067 France | |
| 17 of April | Roberto | Saint Roberto of Molesmes | 1111 France | |
| 18 of April | Roman | Blessed Roman Archutowski | Poland | |
| 21 of April | Romás | Saint Romás Adame | 1927 Mexico | |
| 25 of April | Robert | Blessed Robert Anderton | 1586 United kingdom | |
| 26 of April | Ricario | Saint Ricario | 645 France | |
| 27 of April | Raphael | Saint Raphael Arnáiz | 1911 Spain | 1938 Spain |
| 1 of May | Ricardo | Saint Ricardo Pampuri | 1897 Italy | 1928 Italy |
| 7 of May | Rosa | Blessed Rose Venerini | 1656 Italy | 1728 Italy |
| 12 of May | Rictrudis | Saint Rictrudis of Marchiennes | 612 Spain | 688 Belgium |
| 15 of May | Reticio | Saint Reticio of Autún | France | |
| 15 of May | Ruperto | Saint Ruperto of Bingen | Germany | |
| 17 of May | Restituta | Saint Restituta | 304 | |
| 22 of May | Rita | Saint Rita of Cascia | 1381 Italy | 1457 Italy |
| 27 of May | Ranulfo | Saint Ranulfo of Arras | ||
| 27 of May | Restituto | Saint Restituto mártir | Italy | |
| 29 of May | Richard | Blessed Richard Thirkeld | United kingdom | 1583 United kingdom |
| 1 of June | Ronan | Saint Ronan of Quimper | Ireland | France |
| 4 of June | Ruth | Saint Ruth | ||
| 6 of June | Rafael | Saint Rafael Guizar y Valencia | 1878 Mexico | 1938 Mexico |
| 7 of June | Roberto | Saint Roberto of Newminster | 1100 United kingdom | 1159 United kingdom |
| 9 of June | Ricardo | Saint Ricardo of Andria | 1196 Italy | |
| 11 of June | Remberto | Saint Remberto of Bremen | 888 Germany | |
| 11 of June | Rosa | Saint Rosa Francisca María of los Dolores | 1815 Spain | 1876 Spain |
| 14 of June | Rufino | Saint Rufino of Soissons | Belgium | |
| 16 of June | Robert | Blessed Robert Salt | United kingdom | 1537 United kingdom |
| 17 of June | Rainero | Saint Raniero of Pisa | 1160 Italy | |
| 19 of June | Romualdo | Saint Romuald | Italy | 1027 Italy |
| 21 of June | Radulfo | Saint Radulfo of Bourges | 866 France | |
| 21 of June | Raimundo | Saint Raimundo of Barbastro | France | 1126 Spain |
| 24 of June | Rumoldo | Saint Rumoldo of Malinas | 775 Netherlands | |
| 26 of June | Raymond | Blessed Raymond Petiniaud of Jourgnac | 1794 France | |
| 3 of July | Raimundo | Saint Raimundo Gayrard | 1118 France | |
| 6 of July | Rómulo | Saint Rómulo of Fiésole | Italy | |
| 8 of July | Rufina | Saint Rufina | Italy | 257 Italy |
| 14 of July | Richard | Blessed Richard Langhorne | 1679 United kingdom | |
| 18 of July | Rufilo | Saint Rufilo of Forlimpopoli | Italy | |
| 27 of July | Raymond | Blessed Raymond the Palmer | 1200 Italy | |
| 2 of August | Rutilio | Saint Rutilio mártir | 212 | |
| 4 of August | Rubén | Saint Ruben | ||
| 4 of August | Rainero | Saint Rainero of Split | 1180 Croatia (Hrvatska) | |
| 9 of August | Richard | Blessed Richard Bere and companions | 1537 United kingdom | |
| 9 of August | Rubén | Blessed Rubén of Jesús López Aguilar and his six companions | 1936 Spain | |
| 11 of August | Rufino | Saint Rufino of Asís | Italy | |
| 11 of August | Rustícola | Saint Rustícola of Arlés | 632 France | |
| 11 of August | Rafael | Blessed Rafael Alonso Gutiérrez | 1890 Spain | 1936 Spain |
| 13 of August | Radegunda | Saint Radegunda of Poitiers | 587 France | |
| 16 of August | Roque | Saint Roch | France | 1379 Italy |
| 16 of August | Ralph | Blessed Ralph of Fusteia | 1129 France | |
| 16 of August | Rosa | Saint Rosa Fan Hui | China | 1900 China |
| 18 of August | Raynald | Blessed Raynald of Concoregio | 1321 Italy | |
| 21 of August | Raimundo | Blessed Raimundo Peiró Victorí | 1891 Spain | 1936 Spain |
| 22 of August | Reina | Saint Mary Queen | ||
| 23 of August | Rosa | Saint Rose of Lima | 1586 Peru | 1617 Peru |
| 27 of August | Raimundo | Blessed Raimundo Martí Soriano | Spain | 1936 Spain |
| 27 of August | Roger | Blessed Rogerio Cadwalador | 1568 United kingdom | 1610 United kingdom |
| 27 of August | Rufo | Saint Rufo of Capua | Italy | |
| 28 of August | Restituto | Saint Restituto of Cartago | 360 Tunisia | |
| 29 of August | Richard | Blessed Richard Herst | 1618 United kingdom | |
| 31 of August | Ramón | Saint Ramon Nonato | 1200 Spain | 1240 Spain |
| 3 of September | Rimagilo | Saint Rimagilo of Stavelot | 679 France | |
| 4 of September | Rosalía | Saint Rosalía of Palermo | Italy | |
| 7 of September | Regina | Saint Regina of Autun | 286 France |