Name days are a tradition celebrated in many cultures, marking the feast day of a saint after whom a person is named. These celebrations often involve personal festivities and are particularly prominent in Scandinavian and Catholic countries. The name Jo, a diminutive of several longer names, carries a history of adaptability and widespread use. Its origin lies in shortened forms of names across various languages, lending it a versatile character. The mood associated with Jo is one of approachable warmth and quiet strength, and in Norway, it observes a name day on August 29th.
in Norway.
In the USA, Jo is most often seen as a nickname for Josephine or Joanna, though it’s occasionally used as a standalone name, particularly for boys. Globally, Jo enjoys popularity in Scandinavian countries like Norway, often as a diminutive of Johan or Johannes for males. It also appears in Dutch-speaking regions as a short form of names like Jozef. While not consistently charting high on popularity lists, Jo maintains a consistent, understated presence in many cultures. Its simplicity and versatility contribute to its enduring appeal, crossing gender lines in some regions. The name’s usage often reflects regional naming traditions and preferences.
The name Jo doesn’t have a singular origin point, instead functioning as a shortened form of various longer names across different languages. It’s frequently derived from names containing the element ‘Jo-’, which itself has roots in Hebrew names meaning ‘God will increase’ or ‘God is gracious’. This element appears in names like Joachim, Joseph, and Johanna. The widespread use of these source names has led to Jo’s independent adoption in numerous cultures. Consequently, Jo’s development is tied to the evolution and popularity of its parent names.
Jo is a remarkably versatile name, exhibiting a strong tendency towards being unisex. Historically, it’s been predominantly masculine, particularly in Scandinavian countries where it’s a common short form of Johan or Johannes. However, in the United States and other English-speaking regions, it’s frequently used as a nickname for the feminine Josephine or Joanna. This dual usage means its perceived gender can vary significantly depending on location and cultural context. The name’s flexibility allows it to adapt to different preferences and traditions.
The name Jo evokes a sense of approachable warmth and understated strength. It feels friendly and down-to-earth, yet possesses a quiet confidence. There’s a playful energy to it, suggesting a personality that is both adaptable and resilient. Jo doesn’t scream for attention but rather radiates a comfortable, genuine presence. It’s a name that suggests someone who is reliable, kind, and possesses a subtle inner spark.
Your name is more than just a label - it holds a unique energy that influences your personality, destiny, and life path. Through numerology and astrology, we uncover the deeper meanings behind your name, revealing your strengths, challenges, and the energy you bring into the world.
Destiny number: 7 – The Seeker.
Keywords: Introspection, wisdom, spirituality, knowledge, analytical thinking.
Positive Traits: Deep thinker, philosophical, intuitive, intellectual, private.
Challenges: Can be aloof, secretive, or overly skeptical.
Life Path Meaning: A spiritual and intellectual journey of deep self-discovery.
First name number: 8 - The Achiever.
Traits: Ambitious, goal-oriented, authoritative, financially focused.
Strengths: Strong leadership, good at managing money, disciplined.
Challenges: Can be materialistic, dominant, or overly focused on success.
The name is linked to the planet that governs it, shaping the name's meaning and influencing the traits associated with it.
Planet: Neptune - Spirituality, Dreams, Creativity.
Neptune is the planet of mysticism, dreams, and intuition. Names ruled by Neptune tend to belong to highly imaginative, artistic, and spiritually attuned individuals. These names reflect deep emotional sensitivity, creativity, and an affinity for the unseen or mystical. People with Neptune-ruled names are often drawn to artistic and spiritual pursuits.
This list shows name days in different countries where the name is written in the same form. The dates are based on traditional calendars and cultural name celebrations. If your name matches exactly, you can see when it is honored in various parts of the world.
Here you’ll find name days for names that are similar in spelling, pronunciation, or origin. Many cultures group related names together, even if they are not identical. If your name has a close variation, you may find relevant name day dates in this section.
| Country | Month | Day | Name days |
 Austria | January | 5 | Emilia, Johann |
 Bulgaria | January | 6 | Bogdan, Bogdana, Bogomil, Borislav, Borislava, Bozhidar, Bozhidara, Jordan, Nayden, Teodosii, Yordan, Yordanka |
 Greece | January | 6 | Fani, Fannoula, Fotini, Fotis, Jordan, Ourania, Theofania, Theofanis |
| Greece | January | 7 | Gianna, Giannis, Ioannis, Ivana, Jeannette, John, Prodromos |
 Estonia | January | 9 | Veigo, Veiko, Veli, Veljo, Vello, Velvo, Venda, Vendo, Venno, Väiko |
 Finland | January | 9 | Veijo, Veikka, Veikko, Veli |
 Lithuania | January | 9 | Algis, Bazile, Gabija, Marcijona |
| Lithuania | January | 11 | Audrius, Marcijonas, Stefanija, Vilne |
 Croatia | January | 15 | Franjo |
| Lithuania | January | 18 | Gedgaudas, Jogaile, Jolita, Liberta |
| Lithuania | January | 20 | Daugvydas, Fabijonas, Sebastijonas |
| Croatia | January | 24 | Bogoslav, Franjo |
 Norway | January | 24 | Jarl, Jarle, Joar |
| Lithuania | January | 25 | Jaunutis, Jomantas, Povilas, Viltenis, Ziede |
| Finland | January | 26 | Joonatan |
| Finland | January | 27 | Viljo |
| Lithuania | January | 27 | Ilona, Jogundas, Jogunde, Natalis, Vytenis |
| Lithuania | January | 28 | Gedautas, Leonidas, Nijole |
| Austria | January | 29 | Gerd, Gerhard, Josef, Valerius |
| Austria | January | 31 | Johannes, Marcella |
 Sweden | January | 31 | Ivar, Joar |
| Norway | February | 2 | Jomar, Jostein |
 Poland | February | 2 | Joanna, Korneliusz, Maria, Miłosława |
| Sweden | February | 3 | Disa, Hjördis |
| Lithuania | February | 4 | Andrius, Arvile, Gustas, Joana, Vydmantas |
| Poland | February | 4 | Andrzej, Gilbert, Jan, Joanna, Józef, Mariusz, Weronika, Witosława |
| Lithuania | February | 7 | Jomante, Ricardas, Romualdas, Vildaugas |
| Austria | February | 8 | Hieronimus, Josefina, Josefine |
| Lithuania | February | 9 | Alge, Apolonija, Erikas, Joviltas |
| Croatia | February | 13 | Božica, Božidar, Jordan |
| Poland | February | 13 | Benigna, Grzegorz, Jordan, Kastor, Katarzyna, Klemens, Toligniew |
| Estonia | February | 14 | Valentin, Valjo, Valju, Valle, Vallo, Vallot, Vallut |
| Poland | February | 14 | Adolf, Adolfa, Adolfina, Alf, Cyryl, Dobiesława, Dobisława, Józef, Józefa, Konrad, Konrada, Krystyna, Lilian, Liliana, Mikołaj, Niemir, Niemira, Walenty, Zenon, Zenona |
 France | February | 15 | Claude, Georgina, Jordan |
| Lithuania | February | 15 | Girdene, Girdenis, Jovita, Jurgita, Vytis |
| Poland | February | 15 | Faustyn, Georgia, Georgina, Jordan, Jowita, Józef, Klaudiusz, Przybyrad, Sewer |
 USA | February | 15 | Georgette, Georgia, Georgina, Jovan, Jovita, Siegfried, Sigrid, Sue, Susan, Susana, Susanna, Susie, Suzanne |
| Lithuania | February | 16 | Julijona, Julijonas, Tautvyde |
| USA | February | 17 | Jordan, Jordana, Jordanne, Jorden, Jordon, Jordyn, Leroy, Reggie, Reginald, Regis, Rex, Rexanna, Rexford, Rexine, Roy, Royce |
| Finland | February | 21 | Alva, Keijo |
| USA | February | 22 | Bella, Belle, George, Georgio, Isabel, Isabela, Isabella, Isabelle, Izabella, Jorge, Miracle |
| Lithuania | February | 26 | Aleksandras, Aurime, Izabele, Jogintas |
| Poland | February | 28 | Chwalibóg, Józef, Makary, Nadbor, Roman |
| France | March | 1 | Albin, Aubin, Jonathan |
| Poland | March | 1 | Albin, Antoni, Antonina, Budzisz, Budzisław, Eudokia, Eudoksja, Ewdokia, Feliks, Herakles, Herkules, Jewdocha, Joanna, Józef, Nikifor, Piotr |
| Poland | March | 3 | Asteriusz, Hieronim, Kunegunda, Lucjola, Maryna, Wierzchosława |
 Spain | March | 5 | Juan José de la Cruz |
| Poland | March | 6 | Eugenia, Felicyta, Frydolin, Jordan, Klaudian, Koleta, Róża, Wiktor, Wiktoriusz, Wojsław |
| Austria | March | 8 | Gerhard, Johannes |
| Sweden | March | 9 | Torbjörn, Torleif |
| Austria | March | 10 | Emil, Gustav, John |
| Lithuania | March | 11 | Gedimtas, Konstantinas, Vijole |
| Finland | March | 12 | Reijo, Reko |
| Poland | March | 12 | Bernard, Blizbor, Grzegorz, Józefina, Wasyl |
| Spain | March | 12 | Fina, Josefina, Maximiliano |
| Austria | March | 19 | Josef, Josefa, Josefine |
| Croatia | March | 19 | Joso, Joško |
 Czechia | March | 19 | Josef |
 Denmark | March | 19 | Joseph |
| Estonia | March | 19 | Joosep, Joosu |
| Finland | March | 19 | Joose, Joosef, Jooseppi, Jose, Josefiina, Juuso |
| France | March | 19 | Joseph |
 Germany | March | 19 | Gero, Joseph |
 Hungary | March | 19 | Bánk, József |
| Norway | March | 19 | Josef, Josefine |
| Poland | March | 19 | Bogdan, Józef |
 Slovakia | March | 19 | Jozef |
| Spain | March | 19 | Josefa, José, Marcos |
| Sweden | March | 19 | Josef, Josefina |
| USA | March | 19 | Donahue, Donavan, Donovan, Dorian, Joe, Joey, Jose, Josef, Joseph, Wyatt |
| Finland | March | 20 | Aki, Jaakkima, Joakim, Jooa, Kim, Kimi |
| Norway | March | 20 | Joakim, Kim |
| Sweden | March | 20 | Joakim, Kim |
| Spain | March | 23 | Fidel, José Oriol, Oriol, Toribio, Victoriano |
 Italy | March | 24 | Turibio de Mongrovejo |
| Estonia | March | 25 | Maari, Maarika, Maarja, Manni, Mari, Maria, Marie, Marika, Marili, Marja, Marje, Marjo, Marju |
| Hungary | March | 28 | Gedeon, Johanna |
| Croatia | March | 29 | Bertold, Gluha, Jona |
| Denmark | March | 29 | Jonas |
| Estonia | March | 29 | Joakim, Joonas, Kimmo |
| Finland | March | 29 | Joni, Jonne, Jonni, Joona, Joonas, Jouni |
| Norway | March | 29 | Jonas, Jonatan |
| Spain | March | 29 | Jonas, Segundo |
| Sweden | March | 29 | Jens, Jonas |
| Croatia | April | 2 | Dragoljub, Franjo |
| Lithuania | April | 2 | Elona, Jostautas, Jostaute, Pranas, Pranciskus |
| Lithuania | April | 3 | Kristijonas, Ricardas, Rimtaute, Vytenis |
| Austria | April | 7 | Johann |
| USA | April | 8 | Gillian, Jill, Jillian, Jolyon, Julia, Julian, Juliana, Julianna, Julianne, Julie, Julien, Juliet, Juliette, Julio, Julissa, Julius |
| Lithuania | April | 12 | Damijonas, Galmantas, Julius, Jurate |
| Lithuania | April | 14 | Justinas, Vaisvyde, Vaiva, Valerijonas, Visvaldas |
| Estonia | April | 15 | Uljas, Uljo, Verner, Verni |
| Croatia | April | 16 | Bernardica, Josip Benedikt Labre |
| Poland | April | 17 | Anicet, Innocenta, Innocenty, Jakub, Józef, Klara, Radociech, Robert, Roberta, Rudolf, Rudolfa, Rudolfina, Stefan |
| Lithuania | April | 20 | Agne, Eisvyde, Gostautas, Marcijonas |
| Croatia | April | 22 | Kajo, Soter, Vojmil |
| Austria | April | 23 | Adalbert, Georg, Jörg, Jürgen |
| Estonia | April | 23 | Georg, Jürgen, Jürgo, Jüri, Jürjo, Jürnas, Jüts, Ürjo |
| Finland | April | 23 | Jiri, Jori, Jyri, Jyrki, Yrjänä, Yrjö |
 Latvia | April | 23 | Georgs, Jorens, Jurgis, Juris |
| Spain | April | 23 | Adalberto, Gorka, Jorge |
| Finland | April | 29 | Teijo |
| Croatia | April | 30 | Josip Cottolengo, Pio V. papa |
| Lithuania | April | 30 | Marijonas, Sofija, Venta, Virbutas |
| Austria | May | 1 | Josef |
| Croatia | May | 1 | Josip |
| Poland | May | 1 | Aniela, Filip, Jakub, Jeremi, Jeremiasz, Józef, Lubomir |
| Sweden | May | 3 | Jane, John |
| USA | May | 3 | Joletta, Trey, Troy, Viola, Violet, Violetta, Yolanda |
| Lithuania | May | 4 | Dargailas, Florijonas, Mintaute, Monika |
| USA | May | 5 | Jodi, Jodie, Jody, Judie, Judith, Judy, Terrell, Tyrell, Tyrese, Tyron, Tyrone, Tyrrell, Tyson |
| Denmark | May | 6 | Johannes ante portam |
| Poland | May | 9 | Beatus, Bożydar, Grzegorz, Job, Karolina, Mikołaj |
| Spain | May | 10 | Gordiano, Job, Solange |
| Sweden | May | 10 | Esbjörn, Styrbjörn |
| USA | May | 10 | Cormac, Cormick, Gordon, Job, Jobina, Joby, Max, Maximilian, Maximus, Maxine, Maxwell |
| Austria | May | 11 | Gangolf, Joachim, Mamertus |
| Poland | May | 12 | Domicela, Domicjan, Dominik, Epifani, Flawia, Jan, Jazon, Joanna, Pankracy, Wszemił |
| Austria | May | 16 | Adolf, Johann |
| Austria | May | 18 | Erich, Erika, Felix, Johannes |
| Austria | May | 21 | Christoph, Constantin, Josef, Julio |
| USA | May | 22 | Jolee, Joleen, Jolene, Jolie, Marshall |
| Poland | May | 24 | Cieszysława, Estera, Jan, Joanna, Maria, Mokij, Wincenty, Zula, Zuzanna |
| Lithuania | May | 28 | Jogirdas, Justas, Rima |
| Austria | May | 30 | Ferdinand, Johanna, Otto |
| Lithuania | May | 30 | Ferdinandas, Joana, Jomile, Vyliaudas, Zana |
| Poland | May | 30 | Andonik, Feliks, Ferdynand, Joanna, Sulimir |
| USA | May | 30 | Fawn, Ferdinand, Ferdinanda, Ferdinando, Fern, Fernanda, Fernando, Joan, Joani, Joann, Joanna, Joanne, Johanna |
| Estonia | May | 31 | Elga, Helga, Helge, Helgi, Helja, Helje, Heljo, Helju, Olga, Olli |
| Lithuania | June | 1 | Galinde, Jogaila, Juvencijus, Konradas |
| Estonia | June | 3 | Jolanta, Kanni, Kannike, Viola |
| Estonia | June | 5 | Vilimo, Viljar, Viljer, Viljo, Vilju |
| USA | June | 10 | Daisy, Greta, Gretchen, Madge, Maggie, Margaret, Margarita, Margot, Marguerite, Marjorie, Meagan, Meg, Megan, Meghan, Peggy, Rita |
| Lithuania | June | 12 | Anupras, Dove, Kristijonas, Kristis, Ramunas |
| Spain | June | 13 | Andoni, Antonia, Antonio de Padua, Joel |
| Hungary | June | 15 | Jolán, Vid |
| Poland | June | 15 | Abraham, Angelina, Bernard, Jolanta, Leona, Leonida, Nikifor, Wit, Witold, Witolda, Witosław, Witołd, Wodzisław |
| Croatia | June | 16 | Franjo Regis |
| Sweden | June | 18 | Bjarne, Björn |
| Hungary | June | 21 | Alajos, Leila |
| Croatia | June | 23 | Josip Caffasso, Sidonija, Zdenka |
| Poland | June | 23 | Agrypina, Albin, Bazyli, Józef, Piotr, Prosper, Wanda, Zenon, Zenona |
| USA | June | 23 | Audra, Audrey, Dashawn, Deshawn, Elton, Ethel, Josiah, Josias, Shaina, Shania, Shaun, Shauna, Shawn, Shawna, Shayna, Shayne, Shonda |
| Austria | June | 24 | Johannes, Reingard |
| Estonia | June | 24 | Annes, Ants, Hannes, Hans, Jaan, Jan, Janno, Johan, Johannes, Juhan, Juho, Jukk, Juss, Kanek |
| Finland | June | 24 | Jani, Janne, Johannes, Juha, Juhana, Juhani, Juho, Jukka, Jussi |
| Greece | June | 24 | Birth of John the Baptist |
| Lithuania | June | 24 | Eiviltas, Eivilte, Jonas |
| Norway | June | 24 | Hans, Johannes, Jon |
| Spain | June | 24 | Ivana, Iván, Jean, Joan, Jon, Juan, Juana |
 Ukraine | June | 24 | Bohuslav, Bohuslava, Boris, Boryslav, Boryslava, Ivan, Jean, Joan, Johanna, John, Slavka, Slavko, Yvonna |
| USA | June | 24 | Giovanna, Giovanni, Hans, Ian, Ivan, Jan, Jana, Jean, Jeanette, Jeannette, Johan, John, Johnnie, Johnny, Juan, Juana, Juanita, Sean, Shana, Shane, Shanna, Yancy |
| Norway | June | 25 | Jorunn, Jørund |
| Finland | June | 26 | Jarkko, Jarmo, Jarno, Jere, Jeremias, Jorma |
| Norway | June | 26 | Jenny, Jonny |
| Poland | June | 28 | Amos, Ireneusz, Józef, Leon, Paweł, Raissa, Zbrosław |
| Bulgaria | June | 29 | Apostol, Asen, Asen, Asya, Asya, Chavdar, Desislava, Desislava, Kamen, Kamen, Krum, Krym, Pavel, Pavel, Pavlin, Pavlina, Pavlina, Pejo, Pencho, Penka, Petar, Petar, Petrana, Petya, Petya, Petzo, Polina, Rumen, Rumyana |
| Croatia | June | 30 | Kajo, Rimski prvomucenici |
| Lithuania | July | 2 | Gantaute, Jotvingas, Marijonas |
| Poland | July | 4 | Ageusz, Alfred, Aurelian, Elżbieta, Innocenta, Innocenty, Julian, Józef, Malwin, Malwina, Odo, Teodor, Wielisław |
| Sweden | July | 9 | Jörgen, Örjan |
| Denmark | July | 11 | Josva |
| Lithuania | July | 11 | Kipras, Kiprijonas, Pijus, Sarune, Vilmantas |
| Finland | July | 13 | Ilari, Joel, Lari |
| France | July | 13 | Enzo, Eugène, Henri, Joël |
| Spain | July | 13 | Eugenio, Joel, Sara |
| Sweden | July | 13 | Joel, Judit |
| USA | July | 13 | Ezra, Joel, Joelle, Mildred, Natalia, Natalie, Nataly, Natasha, Nathalie, Nathan, Nathanael, Nathania, Nathaniel, Tasha |
| Estonia | July | 14 | Joel, Joosua |
| Finland | July | 21 | Hanna, Hanne, Hannele, Jenna, Jenni, Joanna, Johanna, Jonna |
| Norway | July | 21 | Jane, Janne, Johanne |
| Sweden | July | 21 | Johanna |
| Lithuania | July | 25 | Ausrine, Jokubas, Kargaudas, Kristupas |
| Austria | July | 26 | Anna, Gloria, Joachim |
| Croatia | July | 26 | Ana, Joakim, Rod. BDM |
| France | July | 26 | Anne, Hannah, Joachin |
| Germany | July | 26 | Anna, Joachim |
| Spain | July | 26 | Ana, Joaquín |
| USA | July | 27 | Joy, Joyce, Lila, Lilac, Liliana, Lillian, Lillie, Lilly, Lily |
| Greece | July | 31 | Iosif, Joseph, Sifi |
| Estonia | August | 3 | Kaljo, Kalju |
| Austria | August | 4 | Johannes, Rainer |
| Slovakia | August | 6 | Jozefína |
| Estonia | August | 7 | Hiljar, Hiljo, Vaido, Vaigo, Vaiko |
| Lithuania | August | 7 | Drasutis, Jogile, Kajetonas, Klaudija, Sikstas |
| Estonia | August | 15 | Hanna, Jaana, Jaanika, Jana, Janika, Janne, Jenny, Johanna, Nanna |
| Finland | August | 15 | Jaana, Jatta, Marianna, Marianne, Marita, Maritta, Marja, Marjaana, Marjatta, Marjo, Marju, Marjukka, Marjut |
| Spain | August | 15 | Asunción, Estrella, José de Calasanz, María, Paloma |
| Lithuania | August | 16 | Alvita, Butvydas, Jokimas, Rokas |
| Poland | August | 16 | Alfons, Alfonsyna, Ambroży, Domarad, Domarat, Joachim, Joachima, Roch |
| Poland | August | 17 | Anastazja, Angelika, Anita, Bertram, Eliza, Jacek, Jaczewoj, Joanna, Julianna, Liberat, Miron, Zawisza, Żanna |
| Austria | August | 19 | Johann, Julius, Sebald |
| Czechia | August | 21 | Johana |
| Lithuania | August | 21 | Gaudvydas, Joana, Kaze, Kazimiera, Medeine |
| Poland | August | 21 | Adolf, Adolfa, Adolfina, Alf, Bernard, Emilian, Filipina, Franciszek, Joanna, Kazimiera, Męcimir |
| Sweden | August | 21 | Jon, Jonna |
| Lithuania | August | 22 | Ipolitas, Karijotas, Rimante, Sigitas, Zygfridas |
| Poland | August | 24 | Bartłomiej, Cieszymir, Jerzy, Joanna, Malina, Michalina |
| Austria | August | 25 | Elvira, Josef, Ludwig |
| Croatia | August | 25 | Josip Kalasancijski, Ljudevit IX., Patricija |
| Hungary | August | 25 | Lajos, Patrícia |
| Poland | August | 26 | Dobroniega, Joanna, Konstanty, Maksym, Maria, Wiktorian, Zefir, Zefiryn, Zefiryna |
| Latvia | August | 27 | Jorens, Ragnars, Valdmiers, Zanis |
| Poland | August | 27 | Angel, Angelus, Cezary, Gebhard, Józef, Kalasanty, Małgorzata, Przybymir, Rufus, Teodor |
| Austria | August | 29 | Johannes |
| Germany | August | 29 | Johannes, Sabine |
| Estonia | August | 30 | Emil, Meljo, Mello, Miljo |
| Latvia | August | 30 | Alija, Alvis, Jolanta |
| France | September | 1 | Gilles, Jossué |
| Greece | September | 1 | Antigoni, Aspasia, Athina, Clea, Joshua, Mando, Margaret, Ourania, Penelope, Simeon |
| USA | September | 1 | Debbie, Deborah, Debra, Edgar, Edgardo, Giles, Josh, Joshua, Josue, Ruth |
| Poland | September | 3 | Antoni, Bartłomiej, Bazylissa, Bronisz, Bronisław, Erazma, Eufemia, Eufrozyna, Izabela, Jan, Joachim, Joachima, Manswet, Mojmir, Szymon, Wincenty, Zenon, Zenona |
| USA | September | 8 | Adria, Adrian, Adriana, Adrianna, Adrien, Adrienne, Hadria, Hadrian, Hadrien, Joachim, Joakima, Joaquin, Joaquina |
| Ukraine | September | 9 | Joachim, Severyn |
| Norway | September | 12 | Jofrid, Jorid |
| Austria | September | 13 | Johann, Notburga, Tobias |
| Czechia | September | 15 | Jolana |
| Slovakia | September | 15 | Jolana |
| Lithuania | September | 16 | Edita, Joginte, Kamile, Rimgaudas |
| Poland | September | 18 | Dobrowit, Irena, Irma, Józef, Ryszarda, Stefania, Tytus, Zachariasz |
| Austria | September | 21 | Deborah, Jonas, Matthäus |
| France | September | 21 | Déborah, Jonas, Matthieu, Mélissa |
| Greece | September | 21 | Jonas |
| Poland | September | 21 | Bożeciech, Bożydar, Hipolit, Hipolita, Ifigenia, Jonasz, Laurenty, Mateusz, Mira |
| Poland | September | 22 | Joachim, Joachima, Maurycy, Prosimir, Tomasz |
| Czechia | September | 27 | Jonáš |
| Lithuania | September | 27 | Adalbertas, Damijonas, Daugile, Kesgaile, Kovaldas |
| Poland | October | 3 | Eustachiusz, Eustachy, Ewald, Gerard, Gerarda, Gerhard, Heliodor, Józefa, Kandyd, Sierosław, Teresa |
| Croatia | October | 4 | Franjo Asiški |
| Austria | October | 7 | Justina, Jörg, Rosa Maria |
| Finland | October | 7 | Birgitta, Pipsa, Pirita, Piritta, Pirjo, Pirkko |
| Austria | October | 9 | Dionys, Günter, Johannes, Sara |
| Croatia | October | 10 | Danijel, Danko, Franjo Borgija |
| Norway | October | 10 | Frida, Fridtjof, Frits |
| Lithuania | October | 17 | Gyte, Kintautas, Marijonas, Ritone |
| Austria | October | 19 | Isaak, Johannes, Paul |
| Italy | October | 19 | Isacco Jogues |
| Norway | October | 21 | Bergljot, Birger |
| Austria | October | 23 | Johannes, Severin, Uta |
| USA | October | 23 | Fifi, Josefina, Josepha, Josephina, Josephine, Josie, Pepita |
| USA | October | 28 | Dayanara, Eunice, Jonah, Jonas, Jude, Liberty, Simeon, Simon, Simone, Thad, Thaddea, Thaddeus |
| Spain | November | 2 | Gorka, Jorge |
| Lithuania | November | 5 | Audangas, Elzbieta, Elze, Florijonas, Gedvyde |
| USA | November | 10 | Flora, Florence, Florian, Jocelina, Joceline, Jocelyn, Jocelyne, Jocelynn, Joselyn, Joslyn, Justice, Justin, Justina, Justine, Justus |
| USA | November | 11 | Chandler, Dallas, Jalen, Johnathan, Johnathon, Jon, Jonatan, Jonathan, Jonathon, Jonte, Jorel, Jorrell, Lincoln |
| Austria | November | 12 | Emil, Josaphat, Kunibert |
| Croatia | November | 12 | Jozafat K., Milan, Renato |
| Hungary | November | 12 | Jónás, Renátó |
| Poland | November | 12 | Cibor, Czcibor, Izaak, Jonasz, Jozafat, Konradyn, Konradyna, Krystyn, Marcin, Renat, Renata, Witold, Witolda, Witołd |
| Poland | November | 14 | Aga, Agata, Damian, Elżbieta, Emil, Emiliusz, Jozafat, Judyta, Józef, Kosma, Laurenty, Lewin, Serafin, Wszerad, Ścibor, Ścibora |
| Finland | November | 18 | Jousia, Max, Tenho |
| Hungary | November | 20 | Jolán |
| Lithuania | November | 20 | Feliksas, Jovydas, Vaidvile |
| Latvia | November | 21 | Andis, Jonass, Zeltite |
| Poland | November | 25 | Erazm, Jozafat, Katarzyna, Tęgomir |
| Lithuania | November | 29 | Butvyde, Daujotas, Saturninas |
| Norway | December | 1 | Arnljot, Arnold, Arnt |
| Croatia | December | 3 | Franjo, Klaudije, Lucije |
| Latvia | December | 3 | Daile, Evija, Jogita, Raita |
| Austria | December | 4 | Adolf, Barbara, Johannes |
| Latvia | December | 9 | Joachims, Jukums, Sarmite, Tabita |
| Poland | December | 9 | Delfina, Joachim, Joachima, Leokadia, Loda, Waleria, Wielisława, Wiesław |
| Austria | December | 12 | Johanna |
| Germany | December | 12 | Johanna |
| Austria | December | 13 | Jodok, Lucia, Odilia |
| France | December | 13 | Jocelyn, Lucie |
| Austria | December | 14 | Berthold, Johannes |
| Finland | December | 14 | Jouko |
| Latvia | December | 15 | Jana, Johanna |
| Lithuania | December | 15 | Gaudene, Gaudenis, Kristijona |
| Croatia | December | 16 | Florijan, Izak, Jolanda, Lazar |
| Austria | December | 17 | Jolanda, Lazarus, Viviana |
| Lithuania | December | 17 | Drovyde, Jolanta, Mantgailas, Olimpija |
| Poland | December | 17 | Florian, Jolanta, Olimpia, Warwara, Łazarz, Żyrosław |
| Latvia | December | 18 | Jordisa, Klinta, Kristaps, Sarmis |
| Latvia | December | 19 | Jordisa, Lelde, Minjona, Sarmis |
| Latvia | December | 20 | Abrams, Argods, Arta, Minjona |
| Sweden | December | 22 | Jonatan, Natanael |
| Austria | December | 25 | Anastasia, Eugenia, Josefina, Therese |
| Ukraine | December | 26 | Joseph, Josephine |
| Lithuania | December | 27 | Dautaras, Fabijole, Gedvine |
| Sweden | December | 27 | Johan, Johannes |
| Latvia | December | 28 | Inga, Ivita, Jonatans, Mierins |
| Austria | December | 29 | David, Jonathan, Thomas |
| Poland | December | 29 | Domawit, Dominik, Gosław, Jonatan, Marcin, Tomasz, Trofim |
| Greece | December | 30 | Josef |
In conclusion, Jo is a name steeped in history as a shortened form of many traditional names, exhibiting a fascinating gender fluidity. Its popularity varies regionally, with strong masculine associations in Scandinavia and a more balanced usage elsewhere. The name’s mood is one of approachable warmth and understated confidence, making it a consistently appealing choice. The Norwegian name day of August 29th adds a cultural layer to this versatile and enduring name.
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