The summary confirms that Ivó's name day is celebrated in Hungary on May 19.
Ivó is a traditionally masculine name primarily utilized across Central European countries, notably Hungary and Czechia, while remaining uncommon in the USA. The name traces its origin to ancient Germanic elements, fundamentally meaning "yew wood" or "bow," suggesting themes of resilience and strength. Historically, it has been used on the European continent since the medieval period, often associated with educated or noble lineages. Ivó carries a mood that is both strong and elegant, projecting a classic European sophistication. Its concise structure lends it a timeless quality, ensuring its continued use within its primary linguistic regions.
| Country | Day | Month | Names |
 Latvia | 2 | January | Abels, Indulis, Ivo, Orests |
 Bulgaria | 7 | January | Ivan, Ivaylo, Ivanka, Vanio, Vania, Encho, Enio, Zhan, Zhana, Ivayla, Ivelin, Ivelina, Ivet, Ivo, Yoan, Ioan, Ioana, Yonka, Yonko, Yoncho, Yoto, Kaloyan, Kaloian |
 Estonia | 9 | March | Edvin, Heido, Heivo |
 Czechia | 23 | March | Ivona |
| Bulgaria | 2 | May | Boriana, Boris, Borislav, Borislava, Boryana, Zhivko, Zhivka, Zhivodan |
| Estonia | 11 | May | Liivar, Liivo, Leevo |
| Estonia | 17 | May | Taimo, Taimar, Taidur, Taido, Taivo |
 Austria | 19 | May | Ivo, Kuno, Yvonne |
| Czechia | 19 | May | Ivo |
 Germany | 19 | May | Ivo |
| Estonia | 22 | May | Oliver, Leivo |
 Lithuania | 23 | May | Gertautas, Ivona, Tautvyde |
| Latvia | 29 | May | Daris, Maksine, Maksis, Raivis, Raivo |
| Estonia | 4 | June | Toivo, Tõivo, Tõivu, Tõivot, Tõivotu |
 Finland | 4 | June | Toivo |
 Sweden | 8 | June | Eivor, Majvor |
| Estonia | 30 | June | Päivo, Päivu, Helend |
| Czechia | 30 | July | Bořivoj |
| Estonia | 22 | August | Iivo, Ivo, Ivar, Ivari, Ivalo |
| Finland | 22 | August | Iivari, Iivo |
| Latvia | 25 | August | Ivonna, Ludis, Ludvigs |
 Greece | 6 | September | Vivos, Vivi |
| Latvia | 29 | September | Ivonna, Mihails, Mikelis, Mikus |
 Norway | 24 | October | Eilif, Eivor |
| Estonia | 25 | October | Raivo, Riivo, Viivo, Veevo |
| Estonia | 3 | November | Kaido, Kaidu, Kairo, Kaivo, Kaimo, Kaimar |
| Bulgaria | 8 | November | Angel, Angelina, Arhangel, Gavrail, Gavril, Emil, Emilia, Emiliana, Mihaela, Mihail, Ognyan, Ognyana, Plamen, Plamena, Rada, Radka, Radko, Rafail, Raia, Raika, Raina, Rangel, Emiliya, Emiliyana, Emiliyan, Lina, Mila, Milen, Milyo, Mihaela, Mihail, Radivoy, Radoslav, Radoslava, Radostin, Radostina, Raiko, Raycho, Rangel, Rafail, Raya, Rusi |
 Croatia | 23 | November | Klement R., Milivoj |
| Estonia | 12 | December | Aivar, Aiver, Aivo |
| Croatia | 26 | December | Ivan ev., Ivo, Janko |
Hungary