NameDays in Poland for December reveal a rich blend of traditional and internationally recognized names, with each day offering a diverse selection for celebration. The list frequently features both male and female names, reflecting a broad historical and cultural spectrum. Dionizy is the most recurring name, appearing on December 6th, 26th, and 30th. Significant days include Mikołaj on December 6th, marking Saint Nicholas Day, and prominent names like Adam and Ewa on Christmas Eve. The month concludes with Sylwester on December 31st, a name strongly associated with New Year's Eve festivities, alongside other distinctive choices.
| Country | Day | Month | Names |
 Poland | 1 | December | Długosz, Edmund, Eliga, Eligiusz, Iwa, Natalia, Natalis, Platon, Sobiesława |
| Poland | 2 | December | Adria, Aurelia, Balbina, Bibianna, Paulina, Sulisław, Wiktoryn, Zbylut |
| Poland | 3 | December | Franciszek, Kasjan, Ksawery, Lucjusz, Unimir |
| Poland | 4 | December | Barbara, Berno, Biernat, Chrystian, Hieronim, Krystian, Piotr |
| Poland | 5 | December | Anastazy, Gerald, Geraldyna, Kryspina, Krystyna, Pęcisława, Saba |
| Poland | 6 | December | Dionizja, Emilian, Jarema, Jarogniew, Mikołaj |
| Poland | 7 | December | Agaton, Ambroży, Marcin, Ninomysł |
| Poland | 8 | December | Boguwola, Klement, Maria, Światozar, Wirginiusz |
| Poland | 9 | December | Delfina, Joachim, Joachima, Leokadia, Loda, Waleria, Wielisława, Wiesław |
| Poland | 10 | December | Andrzej, Daniel, Judyta, Julia, Maria, Radzisława |
| Poland | 11 | December | Damazy, Daniela, Julia, Stefan, Waldemar, Wojmir |
| Poland | 12 | December | Adelajda, Aleksander, Dagmara, Paramon, Suliwoj |
| Poland | 13 | December | Łucja, Lucja, Otylia, Włodzisława |
| Poland | 14 | December | Alfred, Arseniusz, Izydor, Naum, Pompejusz, Sławobor, Spirydion |
| Poland | 15 | December | Celina, Fortunata, Iga, Ignacja, Ignacy, Krystiana, Nina, Walerian, Waleriana, Wolimir, Żegota |
| Poland | 16 | December | Adelajda, Ado, Albina, Alina, Ananiasz, Bean, Zdzisława |
| Poland | 17 | December | Florian, Jolanta, Łazarz, Olimpia, Warwara, Żyrosław |
| Poland | 18 | December | Bogusław, Gracjan, Gracjana, Laurencja, Wilibald, Wszemir |
| Poland | 19 | December | Abraham, Beniamin, Dariusz, Gabriela, Mścigniew, Nemezjusz, Tymoteusz, Urban |
| Poland | 20 | December | Amon, Bogumiła, Dominik, Liberat, Teofil |
| Poland | 21 | December | Balbin, Festus, Honorat, Tomasz, Tomisław |
| Poland | 22 | December | Beata, Drogomir, Flawian, Franciszka, Gryzelda, Honorata, Ksawera, Ksaweryna, Zenon, Zenona |
| Poland | 23 | December | Dagobert, Mina, Sławomir, Sławomira, Wiktoria |
| Poland | 24 | December | Ada, Adam, Adamina, Adela, Ewa, Ewelin, Ewelina, Godzisława, Grzegorz, Grzymisława, Hermina, Herminia, Irma, Irmina, Zenobiusz |
| Poland | 25 | December | Anastazja, Eugenia, Piotr, Spirydion |
| Poland | 26 | December | Dionizy, Szczepan, Wróciwoj |
| Poland | 27 | December | Cezary, Fabia, Fabiola, Jan, Radomysł |
| Poland | 28 | December | Antoni, Dobrowiest, Emma, Godzisław, Teofila |
| Poland | 29 | December | Domawit, Dominik, Gosław, Jonatan, Marcin, Tomasz, Trofim |
| Poland | 30 | December | Dawid, Dawida, Dionizy, Eugeniusz, Irmina, Katarzyna, Łazarz, Rainer, Sabin, Sewer, Uniedrog |
| Poland | 31 | December | Korneliusz, Mariusz, Melania, Sebastian, Sylwester, Tworzysław |
