Zeno's name day is April 12 in Austria and October 30 in the USA.
Zeno is a name with ancient Greek origins, meaning "gift of Zeus." It carries a distinguished and somewhat philosophical mood, evoking intellect and a sense of grounded strength. Historically, it's associated with notable thinkers, hinting at wisdom and contemplation. The name Zeno is predominantly masculine. Its uncommon yet familiar sound gives it an elegant and timeless quality.
| Country | Day | Month | Names |
 Ukraine | 30 | January | Gregory, Zenon, Zenonia, Zenia |
 Poland | 14 | February | Adolf, Adolfa, Adolfina, Alf, Cyryl, Dobiesława, Dobisława, Józef, Józefa, Konrad, Konrada, Krystyna, Lilian, Liliana, Mikołaj, Niemir, Niemira, Walenty, Zenon, Zenona |
 Lithuania | 5 | April | Irena, Rimvydas, Zenius, Zenonas, Zyginte |
 Italy | 12 | April | Zenone |
| Poland | 12 | April | Andrzej, Iwan, Juliusz, Siemiodrog, Wiktor, Wiktoriusz, Zenon, Zenona |
 Spain | 12 | April | Andrés, Damián, Julio, Zenón |
| Lithuania | 23 | June | Arvydas, Vaida, Vanda, Zenonas |
| Poland | 23 | June | Agrypina, Albin, Bazyli, Józef, Piotr, Prosper, Wanda, Zenon, Zenona |
| Poland | 9 | July | Anatolia, Heloiza, Hieronim, Łucja, Lucja, Ludwika, Lukrecja, Mikołaj, Patrycjusz, Weronika, Wszebąd, Zenon, Zenona |
| Poland | 3 | September | Antoni, Bartłomiej, Bazylissa, Bronisław, Bronisz, Erazma, Eufemia, Eufrozyna, Izabela, Jan, Joachim, Joachima, Manswet, Mojmir, Szymon, Wincenty, Zenon, Zenona |
| Poland | 30 | October | Alfons, Alfonsyna, Angel, Angelus, Edmund, Klaudiusz, Przemysław, Sądosław, Zenobia |
| Lithuania | 8 | December | Gedminte, Guntilda, Vaidginas, Zenonas |
 Croatia | 21 | December | Honorat, Caslav, Zenon |
 Hungary | 22 | December | Zénó |
| Lithuania | 22 | December | Dobile, Gedvydas, Ksavera, Zenonas |
| Poland | 22 | December | Beata, Drogomir, Flawian, Franciszka, Gryzelda, Honorata, Ksawera, Ksaweryna, Zenon, Zenona |
| Poland | 24 | December | Ada, Adam, Adamina, Adela, Ewa, Ewelin, Ewelina, Godzisława, Grzegorz, Grzymisława, Hermina, Herminia, Irma, Irmina, Zenobiusz |
Austria 
USA