Iván's name day is celebrated on June 24 in Hungary and June 24 in Spain.
Iván is a classic masculine name derived from the Hebrew name Yochanan, which carries the meaning of “God is gracious,” and is equivalent to the English name John. It holds substantial popularity worldwide, particularly throughout Spanish-speaking countries and various Slavic regions like Russia and Bulgaria. The name maintains consistent usage in the USA, frequently appearing among the top choices for boys born there. Historically, Iván carries a strong, resonant mood, often suggesting tradition and steadfastness in character. It is universally classified as a male name, reflecting centuries of consistent use across diverse European cultures.
| Country | Day | Month | Names |
 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 |
 Greece | 7 | January | Ioannis, Giannis, Gianna, John, Jeannette, Ivana, Prodromos |
 Latvia | 8 | January | Erhads, Gatis, Gundabis, Ivanda |
 Croatia | 12 | January | Arkadije, Živana, Ernest |
 Norway | 22 | January | Ivan, Vanja |
| Croatia | 31 | January | Ivan, Marcela, Julije |
| Croatia | 8 | March | Pačista, Ivan |
| Croatia | 27 | March | Ivan Damašć., Rupert, Lidija, Lada |
 Czechia | 4 | April | Ivana |
| Croatia | 7 | April | Ivan de la Salle, Herman, Epifan |
| Croatia | 10 | May | Ivan Merz, Gospa Trsat |
| Croatia | 16 | May | Ivan Nepomuk, Andrija Bobola, Nenad |
| Croatia | 18 | May | Ivan I. papa, Venancije, Srecko |
 Sweden | 24 | May | Ivan, Vanja |
| Croatia | 30 | May | Ivana Arška |
| Croatia | 10 | June | Margareta, Dijana, Bl. Ivan Dominici |
| Croatia | 12 | June | Ivan Fakundo, Bosiljko, Nino |
| Croatia | 22 | June | Ivan Fisher, Toma More |
| Croatia | 24 | June | Rodenje Ivana Krstitelja |
 Ukraine | 24 | June | Bohuslav, Bohuslava, Boris, Boryslav, Boryslava, Slavko, Slavka, Ivan, John, Yvonna, Jean, Joan, Johanna |
 USA | 24 | June | Hans, Giovanna, Giovanni, Ian, Ivan, Jan, Jana, Jean, Jeanette, Jeannette, Johan, John, Johnnie, Johnny, Juan, Juana, Juanita, Sean, Shana, Shane, Shanna, Yancy |
| Czechia | 25 | June | Ivan |
| Croatia | 26 | June | Ivan, Pavao, Vigilije, Zoran |
 Slovakia | 8 | July | Ivan |
| Croatia | 23 | July | Brigita Švedska, Ivan Cassian, Slobodan |
| Croatia | 4 | August | Ivan M. Vianney, Ivica, Tertulijan |
| Croatia | 13 | August | Poncijan, Hipolit, Ivan Berchmans |
| Croatia | 19 | August | Ivan Eudes |
| Croatia | 29 | August | Glavosijek Ivana Krstitelja, Sabina R. |
| Croatia | 13 | September | Ivan Zlatousti, Ljubo |
| Croatia | 18 | September | Ivan Macias, J. Kupert., Irena |
| Latvia | 23 | September | Ivanda, Omula, Vanda, Veneranda |
| Croatia | 9 | October | Ljudevit Bertran, Dionizije, Ivan Leon |
| Croatia | 23 | October | Ivan Kapistran, Borislav, Severin |
| Croatia | 9 | November | Ivan Lateranski |
| USA | 9 | November | Orestes, Sullivan, Vaughan, Vaughn |
| Croatia | 14 | November | Nikola Tavelic, Ivan Trogirski |
| Croatia | 4 | December | Ivan Damašcanski, Barbara |
| Croatia | 11 | December | Ivana Franciska Ch. |
| Croatia | 13 | December | Ivan, Krševan |
| Croatia | 22 | December | Ivan Kentijski, Viktorija |
| Croatia | 26 | December | Ivan ev., Ivo, Janko |
| Slovakia | 28 | December | Ivana |
Hungary 
Spain