| Country | Day | Month | Names |
 Lithuania | 6 | January | Arenas, Arene, Baltazaras, Kasparas, Merkelis |
 Spain | 21 | February | Irene, Pedro Damián |
 Poland | 25 | March | Dyzma, Ireneusz, Lucja, Łucja, Lutomysł, Maria, Mariola, Wieńczysław |
 Austria | 1 | April | Hugo, Irene, Irina |
 Italy | 1 | April | Irene |
 Germany | 3 | April | Irene |
 Denmark | 5 | April | Irene |
 Estonia | 5 | April | Irene, Ireene, Reene, Reena, Rena, Renate |
 Finland | 5 | April | Irene, Irina, Ira, Iro |
 France | 5 | April | Irène |
 Norway | 5 | April | Eiril, Eirin, Irene |
 Sweden | 5 | April | Irene, Irja |
 USA | 5 | April | Chandra, Ethelburga, Irene, Irina, Tyler, Tylor |
| Poland | 6 | April | Ada, Adam, Adamina, Celestyn, Celestyna, Diogenes, Ireneusz, Katarzyna, Świętobor, Sykstus, Wilhelm, Zachariasz |
 Ukraine | 16 | April | Irene, Oryna, Orysia |
 Greece | 26 | April | Glafyra, Irene |
| Greece | 5 | May | Eirinis, Irini, Irene, Efraim |
| Ukraine | 5 | May | Myroslav, Myroslava, Irene |
 Latvia | 13 | May | Ina, Ira, Iraida, Irena, Irene, Irina, Miervalda |
| Norway | 8 | June | Renate, René |
 Croatia | 28 | June | Irenej, Smiljan |
| France | 28 | June | Irénée |
| Italy | 28 | June | Ireneo |
| Poland | 28 | June | Amos, Ireneusz, Józef, Leon, Paweł, Raissa, Zbrosław |
| Greece | 28 | July | Afhentios, Timon, Irene |
| Austria | 2 | September | Ingrid, René, Salomon |
| Ukraine | 18 | September | Irene |
| Poland | 18 | October | Julian, Łukasz, René |
| France | 19 | October | Cléo, René |
| Italy | 20 | October | Irene del Portogallo |
| Spain | 20 | October | Academia, Irene |
 Slovakia | 7 | November | René |
 Czechia | 28 | November | René |
| Croatia | 14 | December | Irenej, Drinske mucenice |
| Lithuania | 21 | December | Girene, Honoratas, Norgaudas, Tomas |
