| Country | Day | Month | Names |
 Hungary | 4 | January | Titusz, Leona, Angel |
 Spain | 5 | January | Amada, Simón, Simona, Emiliana |
| Hungary | 7 | January | Attila, Ramóna |
 Lithuania | 9 | January | Algis, Bazile, Gabija, Marcijona |
| Lithuania | 10 | January | Agatonas, Ginvilas, Ginvile, Palemonas, Vilhelmas |
| Lithuania | 11 | January | Audrius, Marcijonas, Stefanija, Vilne |
 Bulgaria | 17 | January | Andon, Anton, Antonia, Dona, Doncho, Donka |
 Czechia | 20 | January | Ilona |
| Lithuania | 20 | January | Daugvydas, Fabijonas, Sebastijonas |
 Finland | 21 | January | Aune, Oona, Auni, Netta |
 USA | 23 | January | Emerald, Esmeralda, Rachael, Rachel, Rachelle, Rae, Ramon, Ramona, Raquel, Ray, Raymond, Raymundo |
| Finland | 26 | January | Joonatan |
| USA | 26 | January | Aubrey, Conan, Coner, Conner, Connor, Conor, Gonzalo, Paola, Paula, Paulette, Paulina, Pauline |
| Lithuania | 27 | January | Ilona, Jogundas, Jogunde, Natalis, Vytenis |
 Poland | 27 | January | Angelika, Ilona, Jan Chryzostom, Julian, Przybysław |
| USA | 31 | January | Cyrus, Kira, Kyra, Lona, Loni, Lonnie, Scarlett, Zane |
| Bulgaria | 3 | February | Simeon, Mona, Moncho |
| Lithuania | 5 | February | Agota, Birute, Gaudvinas, Ilona |
| USA | 6 | February | Amanda, Dolly, Dora, Doreen, Dorothea, Dorothy, Dorthy, Dottie, Manda, Mandi, Mandy, Ron, Rona, Ronald, Ronalda, Ronaldo, Ronnie, Titus |
 Austria | 7 | February | Ava, Richard, Ronan |
 Latvia | 8 | February | Aldona, Anatols, Blazma |
| Lithuania | 8 | February | Daugvile, Dromantas, Honorata, Saliamonas |
| Latvia | 9 | February | Apollonija, Apolonija, Gaisma, Simona |
| Spain | 9 | February | Donato, Sabino, Reinaldo, Apolonia |
| Spain | 12 | February | Modesto, Eulalia de Barcelona |
| Poland | 14 | February | Adolf, Adolfa, Adolfina, Alf, Cyryl, Dobiesława, Dobisława, Józef, Józefa, Konrad, Konrada, Krystyna, Lilian, Liliana, Mikołaj, Niemir, Niemira, Walenty, Zenon, Zenona |
| Lithuania | 16 | February | Julijona, Julijonas, Tautvyde |
 Croatia | 17 | February | Donat |
| Hungary | 17 | February | Donát |
| Latvia | 17 | February | Auce, Donats, Konstance |
| Lithuania | 17 | February | Donata, Donatas, Vaisvilas, Vilte |
| Poland | 17 | February | Donat, Donata, Franciszek, Izydor, Julian, Konstanty, Łukasz, Niegomir, Sylwin, Zbigniew, Zbyszko |
| Lithuania | 18 | February | Bernadeta, Gendre, Lengvenis, Simeonas |
| Austria | 20 | February | Corona, Falko, Jacinta |
| Lithuania | 20 | February | Eitvyde, Leonas, Visgintas |
 Italy | 23 | February | Margherita da Cortona |
| Croatia | 26 | February | Gabriel, Donat |
| Poland | 27 | February | Aleksander, Anastazja, Auksencjusz, Gabriel, Gabriela, Honoryna, Leander, Leonard, Sierosława |
 France | 1 | March | Albin, Aubin, Jonathan |
| Finland | 2 | March | Virva, Virve, Fanni, Fiona |
| Lithuania | 3 | March | Kunigunda, Nona, Nonita, Tule, Uosis |
| Spain | 15 | March | César, Luis, Raimundo, Madrona |
| Latvia | 18 | March | Adelina, Ilona, Razna, Sartite |
| USA | 19 | March | Donahue, Donavan, Donovan, Dorian, Joe, Joey, Jose, Josef, Joseph, Wyatt |
| Czechia | 22 | March | Leona |
| Czechia | 23 | March | Ivona |
| Lithuania | 24 | March | Daumantas, Donardas, Gabrielius, Ganvile, Liucija |
| Czechia | 28 | March | Soňa |
 Slovakia | 28 | March | Soňa |
| Croatia | 29 | March | Gluha, Jona, Bertold |
 Denmark | 29 | March | Jonas |
 Estonia | 29 | March | Joonas, Joakim, Kimmo |
| Finland | 29 | March | Jouni, Joni, Joonas, Joona, Jonne, Jonni |
 Norway | 29 | March | Jonas, Jonatan |
| Spain | 29 | March | Jonas, Segundo |
 Sweden | 29 | March | Jens, Jonas |
| Lithuania | 30 | March | Ferdinandas, Gvidonas, Meda, Rusne, Virmantas |
| Lithuania | 2 | April | Elona, Jostautas, Jostaute, Pranas, Pranciskus |
| Lithuania | 3 | April | Kristijonas, Ricardas, Rimtaute, Vytenis |
| Lithuania | 5 | April | Irena, Rimvydas, Zenius, Zenonas, Zyginte |
| Lithuania | 7 | April | Donata, Hermanas, Kantaute, Minvydas |
| Poland | 7 | April | Donat, Donata, Epifaniusz, Hegezyp, Herman, Przecław, Rufin |
| Spain | 7 | April | Donato, Juan Bautista de la Salle |
| Lithuania | 11 | April | Daugaile, Leonas, Vykintas |
| USA | 11 | April | Alger, Algernon, Ari, Ariel, Arielle, Arion, Leo, Leon, Leonel, Leona, Leontine, Lionel |
| Lithuania | 12 | April | Damijonas, Galmantas, Julius, Jurate |
| Poland | 12 | April | Andrzej, Iwan, Juliusz, Siemiodrog, Wiktor, Wiktoriusz, Zenon, Zenona |
| Lithuania | 14 | April | Justinas, Vaisvyde, Vaiva, Valerijonas, Visvaldas |
| Lithuania | 19 | April | Aiste, Eirimas, Leonas, Leontina, Simonas |
| Lithuania | 20 | April | Agne, Eisvyde, Gostautas, Marcijonas |
| Lithuania | 22 | April | Leonas, Leonidas, Norvaide, Visgailas |
| USA | 23 | April | Brayan, Breana, Breanna, Breanne, Brian, Briana, Brianna, Brianne, Brielle, Brien, Briona, Bryan, Bryana, Bryanna, Bryant, Brynn, Bryon, Shirlee, Shirleen, Shirley |
| Lithuania | 30 | April | Marijonas, Sofija, Venta, Virbutas |
 Greece | 2 | May | Avgerinos, Matrona |
| Lithuania | 4 | May | Dargailas, Florijonas, Mintaute, Monika |
| Norway | 4 | May | Mona, Monika |
| Sweden | 4 | May | Mona, Monika |
| USA | 4 | May | Mona, Monica, Monika, Monique, Monita, Web, Webb, Webster |
| Bulgaria | 10 | May | Simona |
 Germany | 14 | May | Corona |
| Spain | 14 | May | Matías, Corona, Cora, Henedina, Alba, Gemma |
| Sweden | 16 | May | Ronald, Ronny |
| Bulgaria | 21 | May | Elena, Konstantin, Kosta, Kostadin, Kostadinka, Lenko, Dicho, Lenko, Dinko, Elenko, Eli, Elin, Elka, Ilona, Kojcho, Kostadina, Kostadinko, Kuncho, Stamen, Stanimir, Stanimira, Stanka, Stoil, Stoyan, Stoian, Stoyanka, Trayko, Dinko |
| Poland | 21 | May | Donat, Donata, Jan, Kryspin, Przecława, Pudens, Tymoteusz, Walenty, Wiktor, Wiktoriusz |
| Lithuania | 22 | May | Aldona, Eimantas, Elena, Julija, Rita |
| Lithuania | 23 | May | Gertautas, Ivona, Tautvyde |
| Poland | 23 | May | Budziwoj, Dezyderiusz, Dezydery, Emilia, Iwona, Jan, Leontyna, Michał, Symeon |
| France | 24 | May | Donatien |
| Lithuania | 25 | May | Almantas, Danute, Urbonas |
| Lithuania | 27 | May | Augustinas, Brunonas, Leonora, Virgaudas, Zymante |
| Italy | 29 | May | Massimo di Verona |
| France | 1 | June | Justin, Ronan |
| Austria | 4 | June | Christa, Iona, Klothilde |
| Lithuania | 11 | June | Aluona, Flora, Ramintas, Tvirmantas |
| Lithuania | 12 | June | Anupras, Dove, Kristijonas, Kristis, Ramunas |
| Finland | 15 | June | Viena, Vieno, Mona, Vieno |
| Poland | 15 | June | Abraham, Angelina, Bernard, Jolanta, Leona, Leonida, Nikifor, Wit, Witold, Witołd, Witolda, Witosław, Wodzisław |
| Lithuania | 23 | June | Arvydas, Vaida, Vanda, Zenonas |
| Poland | 23 | June | Agrypina, Albin, Bazyli, Józef, Piotr, Prosper, Wanda, Zenon, Zenona |
| Lithuania | 24 | June | Eiviltas, Eivilte, Jonas |
| Lithuania | 2 | July | Gantaute, Jotvingas, Marijonas |
| Austria | 3 | July | Günther, Ramon, Ramona, Thomas |
| Lithuania | 9 | July | Algirdas, Algirde, Leonardas, Veronika |
| Poland | 9 | July | Anatolia, Heloiza, Hieronim, Łucja, Lucja, Ludwika, Lukrecja, Mikołaj, Patrycjusz, Weronika, Wszebąd, Zenon, Zenona |
| Lithuania | 11 | July | Kipras, Kiprijonas, Pijus, Sarune, Vilmantas |
| Denmark | 14 | July | Bonaventura |
| Poland | 14 | July | Bonawentura, Damian, Dobrogost, Franciszek, Izabela, Kosma, Marceli, Marcelin, Marcelina, Stella, Ulrych, Ulryk, Ulryka |
| Austria | 15 | July | Bonaventura, Egon, Waldemar |
| Croatia | 15 | July | Bonaventura |
| France | 15 | July | Donald, Vladimir |
| Italy | 15 | July | Bonaventura da Bagnoregio |
| USA | 15 | July | Baldwin, Don, Donald, Donalda, Donna, Donnell, Donnie, Dunn, Dunne, Uriel |
| Estonia | 16 | July | Reinhold, Rinaldo, Rein, Reino, Reinu, Reinut, Ronald |
| Austria | 17 | July | Charlotte, Donata, Gabriella |
| Latvia | 20 | July | Namejs, Ramona, Ritma |
| Latvia | 27 | July | Dita, Mariona, Marta |
| Lithuania | 30 | July | Abdonas, Donatile, Nortautas, Radvile |
| Lithuania | 3 | August | Auguste, Lengvine, Mangirdas, Steponas |
 Ukraine | 4 | August | Nona |
| Greece | 5 | August | Nona |
| Lithuania | 5 | August | Mintare, Nona, Osvaldas, Rimtas |
| Croatia | 7 | August | Siksto II. p., Kajetan, Albert, Donat b. |
| Denmark | 7 | August | Donatus |
| Lithuania | 7 | August | Drasutis, Jogile, Kajetonas, Klaudija, Sikstas |
| Poland | 7 | August | Albert, Alberta, Albertyna, Anna, Dobiemir, Donat, Donata, Doris, Dorota, Kajetan |
| USA | 7 | August | Claude, Claudette, Claudia, Claudine, Donata, Donato, Donica, Donzel, Gladys |
| Norway | 9 | August | Ronald, Ronny |
| Lithuania | 12 | August | Aiskute, Laima, Laimona, Laimonas |
| Lithuania | 15 | August | Napalys, Napoleonas, Sigita, Visvilas, Vydene |
| Slovakia | 16 | August | Leonard |
| Estonia | 18 | August | Heleene, Helene, Helena, Elina, Ilona, Helen, Hell, Hella, Helle, Hellen, Helli |
| Hungary | 18 | August | Ilona |
| Lithuania | 18 | August | Gendvile, Ilona, Mantautas, Sailenis, Saulene |
| Poland | 18 | August | Agapit, Bogusława, Bronisław, Bronisz, Helena, Ilona, Klara, Tworzysława |
| Austria | 20 | August | Bernhard, Bernd, Ronald |
| USA | 25 | August | Dorcas, Lanard, Lennie, Lenny, Leonard, Leonardo, Tabatha, Tabitha |
| Bulgaria | 1 | September | Simeon, Simona, Mona, Moncho |
| Lithuania | 2 | September | Ingrida, Protenis, Steponas, Vilgaude |
| Poland | 3 | September | Antoni, Bartłomiej, Bazylissa, Bronisław, Bronisz, Erazma, Eufemia, Eufrozyna, Izabela, Jan, Joachim, Joachima, Manswet, Mojmir, Szymon, Wincenty, Zenon, Zenona |
| Poland | 10 | September | Aldona, Łukasz, Mikołaj, Mścibor, Pulcheria |
| Austria | 21 | September | Deborah, Jonas, Matthäus |
| France | 21 | September | Déborah, Jonas, Matthieu, Mélissa |
| Greece | 21 | September | Jonas |
| Poland | 21 | September | Bożeciech, Bożydar, Hipolit, Hipolita, Ifigenia, Jonasz, Laurenty, Mateusz, Mira |
| Czechia | 27 | September | Jonáš |
| Latvia | 27 | September | Adolfs, Ilgonis, Ronalds |
| Lithuania | 27 | September | Adalbertas, Damijonas, Daugile, Kesgaile, Kovaldas |
| Lithuania | 28 | September | Salemonas, Tautvydas, Vaclovas, Vacys, Vientaute |
| Sweden | 28 | September | Lennart, Leonard |
| Lithuania | 5 | October | Donata, Edvinas, Gilda, Palemonas, Placidas |
| Poland | 5 | October | Apolinary, Częstogniew, Donat, Donata, Faust, Fides, Flawia, Igor, Justyn, Konstancjusz, Konstans, Placyd |
| Lithuania | 6 | October | Brunonas, Budvydas, Eismantas, Vytene |
| Finland | 9 | October | Ilona |
| Poland | 11 | October | Aldona, Brunon, Burchard, Dobromiła, Emil, Emilian, Emiliusz, Germanik, Maria, Marian, Placydia |
| Spain | 11 | October | Begona |
| Lithuania | 15 | October | Domante, Gailiminas, Leonardas, Terese |
| Lithuania | 17 | October | Gyte, Kintautas, Marijonas, Ritone |
| Latvia | 18 | October | Lukass, Rolands, Ronalds |
| Italy | 22 | October | Donato di Fiesole |
| Poland | 27 | October | Frumencjusz, Iwona, Sabina, Siestrzemił, Wincenty |
| Latvia | 28 | October | Antonina, Nina, Ninona, Zemgals |
| Lithuania | 28 | October | Almante, Gaudrimas, Simas, Simonas, Tadas |
| USA | 28 | October | Dayanara, Eunice, Jonah, Jonas, Jude, Liberty, Simeon, Simon, Simone, Thad, Thaddea, Thaddeus |
| Slovakia | 30 | October | Simona, Šimon |
| Ukraine | 1 | November | Kuzma, Leonard |
| Lithuania | 5 | November | Audangas, Elzbieta, Elze, Florijonas, Gedvyde |
| Croatia | 6 | November | Leonard pust., Vedran, Sever |
| France | 6 | November | Bertille, Léonard |
| Greece | 6 | November | Leonardo |
| Italy | 6 | November | Leonardo di Noblac |
| Latvia | 6 | November | Leo, Leonards, Leonhards, Leons, Linards |
| Lithuania | 6 | November | Asmantas, Leonardas, Vygaude |
| Norway | 6 | November | Lennart, Leonard |
| Poland | 6 | November | Feliks, Leonard, Trzebowit, Ziemowit |
| Spain | 6 | November | Leonardo |
| Lithuania | 10 | November | Andrius, Galvyde, Leonas, Vaisviltas |
| USA | 11 | November | Chandler, Dallas, Jalen, Johnathan, Johnathon, Jon, Jonatan, Jonathan, Jonathon, Jonte, Jorel, Jorrell, Lincoln |
| Hungary | 12 | November | Jónás, Renátó |
| Poland | 12 | November | Cibor, Czcibor, Izaak, Jonasz, Jozafat, Konradyn, Konradyna, Krystyn, Marcin, Renat, Renata, Witold, Witołd, Witolda |
| Lithuania | 18 | November | Ginvydas, Ginvyde, Otonas, Romanas, Salomeja |
| Ukraine | 18 | November | Roman, Romano, Romanna, Romona, Roma |
| Latvia | 21 | November | Andis, Jonass, Zeltite |
| Croatia | 26 | November | Konrad, Leonardo, Dubravko |
| Poland | 26 | November | Delfin, Dobiemiest, Jan, Konrad, Konrada, Lechosław, Lechosława, Leonard, Sylwester |
| Poland | 27 | November | Damazy, Dominik, Leonard, Maksymilian, Oda, Stojgniew, Walery, Wirgiliusz |
| Ukraine | 29 | November | Philemona |
| Lithuania | 8 | December | Gedminte, Guntilda, Vaidginas, Zenonas |
| Czechia | 12 | December | Simona |
| USA | 12 | December | Finley, Finn, Fiona, Guadalupe, Lupe, Lupita, Mekhi |
| Lithuania | 15 | December | Gaudene, Gaudenis, Kristijona |
| Latvia | 19 | December | Jordisa, Lelde, Minjona, Sarmis |
| Latvia | 20 | December | Abrams, Argods, Arta, Minjona |
| Latvia | 22 | December | Donalds, Donis, Saulvedis |
| Lithuania | 22 | December | Dobile, Gedvydas, Ksavera, Zenonas |
| Poland | 22 | December | Beata, Drogomir, Flawian, Franciszka, Gryzelda, Honorata, Ksawera, Ksaweryna, Zenon, Zenona |
| Sweden | 22 | December | Jonatan, Natanael |
| Lithuania | 23 | December | Mina, Veliuona, Viktorija, Vilbutas |
| Lithuania | 26 | December | Gaudilas, Gindvile, Steponas |
| Latvia | 28 | December | Inga, Ivita, Jonatans, Mierins |
| Austria | 29 | December | David, Jonathan, Thomas |
| Latvia | 29 | December | Ileana, Ilgona, Ilgone, Solveiga |
| Poland | 29 | December | Domawit, Dominik, Gosław, Jonatan, Marcin, Tomasz, Trofim |
