Roni's name day is September 5 in Finland.
Roni is a globally recognized name that, while not extremely common in the USA, holds significant popularity in regions like Scandinavia and Israel. Its background is varied, often serving as a short form for names such as Veronica or Ronit, but also having distinct meanings like 'my joy' in Hebrew. The name is notably unisex, though its gender association varies by country, being more masculine in some areas and feminine in others. Roni often projects a friendly, approachable, and subtly strong mood, blending a playful tone with modern sophistication.
| Country | Day | Month | Names |
 Hungary | 13 | January | Veronika |
 Lithuania | 13 | January | Dargaudas, Gilvyde, Iveta, Veronika |
 Poland | 13 | January | Bogumił, Bogusąd, Bogusława, Godfryd, Gotfryd, Leoncjusz, Melania, Weronika |
 Spain | 13 | January | Verónica, Gumersindo, Milagros |
 USA | 13 | January | Ivette, Veronica, Vonnie, Vonny, Yvette, Yvonne |
 Austria | 4 | February | Andreas, Rabanus, Veronika |
 Croatia | 4 | February | Katarina, Andrija, Veronika |
 Denmark | 4 | February | Veronica |
 France | 4 | February | Véronique |
 Germany | 4 | February | Veronika |
 Latvia | 4 | February | Daila, Veronika |
 Norway | 4 | February | Vera, Veronika |
| Poland | 4 | February | Andrzej, Gilbert, Jan, Joanna, Józef, Mariusz, Weronika, Witosława |
 Slovakia | 4 | February | Veronika |
| Spain | 4 | February | Gilberto, Isidro, Verónica, Juana de Valois |
 Italy | 5 | February | Gilberto Sempronio |
 Czechia | 7 | February | Veronika |
| Austria | 8 | February | Hieronimus, Josefina, Josefine |
| Croatia | 8 | February | Jeronim, Jerko |
| Spain | 8 | February | Jerónimo, Lucio, Elisanda |
 Greece | 23 | February | Polykarpos, Polychronis |
| Poland | 29 | February | Dobronieg, Roman |
| Poland | 3 | March | Asteriusz, Hieronim, Kunegunda, Lucjola, Maryna, Wierzchosława |
| Poland | 11 | March | Benedykt, Drogosława, Edwin, Kandyd, Konstanty, Konstantyn, Prokop, Rozyna, Sofroniusz |
 Romania | 11 | March | Sofronie |
| Poland | 24 | March | Dziersława, Dzierżysława, Gabor, Gabriel, Marek, Sewer, Sofroniusz, Szymon |
| Latvia | 8 | May | Aiga, Ceronis, Inita, Stanislavs, Stefanija |
| Greece | 17 | May | Andronikos |
| Poland | 17 | May | Bruno, Herakliusz, Paschalis, Sławomir, Torpet, Weronika, Wiktor, Wiktoriusz |
| Romania | 17 | May | Andronic |
| Poland | 20 | May | Anastazy, Asteriusz, Bazyli, Bazylid, Bazylis, Bernardyn, Bernardyna, Bronimir, Iwo, Sawa, Teodor, Wiktoria |
 Sweden | 30 | May | Vera, Veronika |
| France | 31 | May | Pétronille |
| Poland | 31 | May | Aniela, Bożysława, Ernesta, Ernestyna, Feliks, Petronela, Petronia, Petroniusz, Teodor |
| Spain | 31 | May | Visitación, Petronila, Amelia, Avelina |
| Latvia | 19 | June | Nils, Vaironis, Viktors |
| Poland | 22 | June | Achacjusz, Achacy, Agenor, Alban, Broniwoj, Flawiusz, Innocenta, Innocenty, Kirył, Paulina |
| Romania | 25 | June | Fevronia |
| Italy | 9 | July | Veronica Giuliani |
| Lithuania | 9 | July | Algirdas, Algirde, Leonardas, Veronika |
| Poland | 9 | July | Anatolia, Heloiza, Hieronim, Łucja, Lucja, Ludwika, Lukrecja, Mikołaj, Patrycjusz, Weronika, Wszebąd, Zenon, Zenona |
| Spain | 9 | July | Milagros, Verónica |
| Greece | 12 | July | Veronica |
| Poland | 12 | July | Andrzej, Euzebiusz, Feliks, Henryk, Jan Gwalbert, Paweł, Piotr, Tolimir, Weronika |
| Romania | 12 | July | Ilarie, Paisie, Proclu, Prodromita, Veronica |
 Ukraine | 12 | July | Hilary, Ilary, Larry, Veronica |
| Lithuania | 20 | July | Alvydas, Ceslovas, Jeronimas, Vismante |
| Poland | 20 | July | Czech, Czechasz, Czechoń, Czesław, Eliasz, Heliasz, Hieronim, Leon, Małgorzata, Paweł, Sewera |
| Greece | 30 | July | Adronikos |
| Romania | 30 | July | Andronic, Crescent, Epenetos, Sila, Silvan, Valentin |
 Estonia | 4 | August | Veera, Veroonika, Veronika |
| Poland | 4 | August | Alfred, Arystarch, Dominik, Maria, Mironieg, Protazy |
| Poland | 18 | August | Agapit, Bogusława, Bronisław, Bronisz, Helena, Ilona, Klara, Tworzysława |
| Latvia | 26 | August | Bronislava, Bronislavs, Glauda, Natalija, Nate |
| Poland | 26 | August | Dobroniega, Joanna, Konstanty, Maksym, Maria, Wiktorian, Zefir, Zefiryn, Zefiryna |
| Poland | 28 | August | Adelina, Aleksander, Aleksy, Augustyn, Patrycja, Sobiesław, Stronisław |
| Poland | 1 | September | Bronisław, Bronisława, Bronisz, Idzi |
| Czechia | 3 | September | Bronislav |
| Lithuania | 3 | September | Bronislova, Bronislovas, Mirga, Sirtautas |
| Poland | 3 | September | Antoni, Bartłomiej, Bazylissa, Bronisław, Bronisz, Erazma, Eufemia, Eufrozyna, Izabela, Jan, Joachim, Joachima, Manswet, Mojmir, Szymon, Wincenty, Zenon, Zenona |
| Poland | 5 | September | Dorota, Herakles, Herkulan, Herkules, Justyna, Laurencjusz, Stronisława, Wawrzyniec |
| Croatia | 30 | September | Jeronim, Jerko |
| Lithuania | 30 | September | Bytaute, Jeronimas, Sofija, Zymantas |
| Poland | 30 | September | Grzegorz, Hieronim, Honoriusz, Imisław, Leopard, Sofia, Wera, Wiera, Wiktor, Wiktoriusz, Zofia |
| Spain | 30 | September | Jerónimo |
| USA | 30 | September | Jerome, Jeronima, Gerome, Geromino |
| Poland | 6 | October | Artur, Artus, Bronisław, Bronisz, Brunon, Emil, Fryderyka, Roman |
| Greece | 7 | October | Polychronis, Sergios |
| Romania | 12 | October | Andronic, Prov, Tarah |
 Russia | 17 | October | Veronica |
| Poland | 19 | November | Elżbieta, Mironiega, Paweł, Seweryn, Seweryna |
| Poland | 4 | December | Barbara, Berno, Biernat, Chrystian, Hieronim, Krystian, Piotr |
Finland