Oľga: Name day
Name Day List: Oľga
Name Day List - similar names (Oľga)
| Country | Day | Month | Names |
 Norway | 30 | March | Holger, Olga |
 Estonia | 31 | May | Helga, Helge, Helgi, Helja, Helje, Heljo, Helju, Elga, Olga, Olli |
 Austria | 11 | July | Benedikt, Olga, Oliver |
 Bulgaria | 11 | July | Oleg, Olga, Olia, Olya |
 Croatia | 11 | July | Benedikt opat, Olga, Oliver |
 Czechia | 11 | July | Olga |
 France | 11 | July | Benoit, Olga, Yolande |
 Greece | 11 | July | Efima, Olga |
 Poland | 11 | July | Benedykt, Cyprian, Kalina, Kallina, Kir, Olga, Pelagia, Pelagiusz, Pius, Placyd, Sawin, Wyszesława |
 Spain | 11 | July | Benito, Olga, Abundio, Sabino |
 USA | 11 | July | Alivia, Helga, Livia, Olga, Olive, Ollie, Oliver, Olivia, Quentin, Quincy, Quinn, Quintina, Quinton |
 Finland | 23 | July | Oili, Olga |
| Poland | 24 | July | Antoni, Kinga, Krystyna, Kunegunda, Olga, Wojciecha |
 Russia | 24 | July | Elena, Olga |
 Hungary | 27 | July | Olga, Liliána |
 Latvia | 11 | August | Liega, Olga, Zita |
| Bulgaria | 20 | September | Olga, Oleg |
 Sweden | 21 | November | Helga, Olga |
Slovakia