Idar: Name day
Name Day List: Idar
Name Day List - similar names (Idar)
| Country | Day | Month | Names |
 Bulgaria | 6 | January | Bogomil, Bogdan, Bogdana, Bozhidar, Bozhidara, Borislav, Borislava, Jordan, Yordan, Yordanka, Nayden, Teodosii |
 Croatia | 13 | February | Jordan, Božidar, Božica |
| Bulgaria | 7 | March | Bozhan, Bozhidar, Bozhidara, Bozhil, Bozhko, Emanuil, Manol, Mancho, Teodor, Teodora, Toto, Todor, Teodor, Todora, Dora, Bogdan, Bogdana |
 Sweden | 9 | May | Reidar, Reidun |
 Latvia | 28 | June | Kitija, Vidars, Viestarts, Viesturs |
 Norway | 28 | July | Reidar, Reidun |
 Slovakia | 1 | August | Božidara |
| Sweden | 31 | August | Arvid, Vidar |
| Croatia | 24 | December | Christmas (Božić), Hence Božidar, Božo, Natalija, Nataša |
| Norway | 29 | December | Vemund, Vidar |