Ivar: Name day
Name Day List: Ivar
| Country | Day | Month | Names |
 Norway | 31 | January | Idun, Ivar |
 Sweden | 31 | January | Ivar, Joar |
 USA | 19 | May | Dumont, Duncan, Dunstan, Indigo, Ivar, Ives, Wright, Yves |
 Estonia | 22 | August | Iivo, Ivo, Ivar, Ivari, Ivalo |
Name Day List - similar names (Ivar)
| Country | Day | Month | Names |
 Latvia | 29 | January | Aivars, Valerijs |
 Lithuania | 29 | January | Aivaras, Girkantas, Valerijus, Zibute |
| Latvia | 1 | March | Ikars, Ilgvars, Ilvars, Ivars |
| Estonia | 11 | May | Liivar, Liivo, Leevo |
 Finland | 22 | August | Iivari, Iivo |
| Estonia | 12 | December | Aivar, Aiver, Aivo |