Irja: Name day
Name Day List: Irja
Name Day List - similar names (Irja)
| Country | Day | Month | Names |
 Estonia | 1 | February | Birgitta, Birgit, Pireta, Piret, Pirja, Pirje, Gita |
 Austria | 2 | April | Franz, Mirjam, Sandra |
 Latvia | 5 | April | Mirjama, Vidaga, Vija, Virdzinija |
| Estonia | 30 | April | Mirjam, Mirja, Mirje, Miia |
 Finland | 30 | April | Mirja, Miia, Mira, Mirva, Mirella, Mirjami, Mirka, Mirkka |
 Sweden | 1 | July | Aron, Mirjam |
 Norway | 5 | July | Mina, Mirjam |
 Croatia | 24 | July | Kristina Bols., Mirjana |
 Hungary | 22 | August | Menyhért, Mirjam |
| Finland | 30 | September | Sirja, Sorja, Siru |
| Estonia | 16 | October | Sirje, Sirja, Siret |