Igor: Name day
Name Day List: Igor
| Country | Day | Month | Names |
 Slovakia | 10 | April | Igor |
 France | 5 | June | Igor |
 Spain | 5 | June | Eloisa, Marcia, Igor, Valeria, Nicanor, Doroteo, Bonifacio |
 Austria | 19 | September | Igor, Januarius |
 Czechia | 1 | October | Igor |
 Poland | 1 | October | Benigna, Cieszysław, Dan, Danisz, Danuta, Igor, Jan, Remigiusz |
| Poland | 5 | October | Apolinary, Częstogniew, Donat, Donata, Faust, Fides, Flawia, Igor, Justyn, Konstancjusz, Konstans, Placyd |
 Croatia | 17 | November | Elizabeta Ugarska, Igor, Grgur |
Name Day List - similar names (Igor)
Bulgaria 
Greece 
Latvia