Name Days in Poland throughout May present a rich daily selection, with Jan being the most frequently celebrated name, appearing on ten different days. Other popular choices include Wiktor, Teodor, Maria, Piotr, Filip, Grzegorz, Izydor, Michał, Feliks, and Joanna, each recognized three or more times across the month. The list features a blend of universally recognized names alongside distinctively Polish ones such as Strzeżywoj, Gościwit, and Świętosława. Many days honor multiple individuals, sometimes including both male and female variations like Aleksander and Aleksandra, or Robert and Roberta. Overall, the May calendar showcases a vibrant tradition of name day celebrations, reflecting a diverse cultural and historical heritage.
| Country | Day | Month | Names |
 Poland | 1 | May | Aniela, Filip, Jakub, Jeremi, Jeremiasz, Józef, Lubomir |
| Poland | 2 | May | Afanazy, Anatol, Atanazy, Longin, Longina, Walenty, Walter, Witomir, Zygmunt |
| Poland | 3 | May | Aleksander, Antonina, Maria, Mariola, Świętosława |
| Poland | 4 | May | Florian, Grzegorz, January, Michał, Monika, Paulin, Strzeżywoj |
| Poland | 5 | May | Irena, Ita, Pius, Teodor, Waldemar, Zdzibor |
| Poland | 6 | May | Benedykta, Benita, Dytrych, Gościwit, Jan, Judyta, Jurand |
| Poland | 7 | May | Benedykt, Bogumir, Domicela, Flawia, Florian, Gizela, Gustawa, Ludmiła, Ludomiła, Sawa, Wincenta |
| Poland | 8 | May | Dezyderia, Ilza, Marek, Michał, Piotr, Stanisław |
| Poland | 9 | May | Beatus, Bożydar, Grzegorz, Job, Karolina, Mikołaj |
| Poland | 10 | May | Antonin, Częstomir, Izydor, Jan, Symeon, Wiktoryna |
| Poland | 11 | May | Adalbert, Benedykt, Filip, Franciszek, Iga, Ignacja, Ignacy, Lew, Lutogniew, Mamert, Mira, Żegota |
| Poland | 12 | May | Domicela, Domicjan, Dominik, Epifani, Flawia, Jan, Jazon, Joanna, Pankracy, Wszemił |
| Poland | 13 | May | Andrzej, Aron, Ciechosław, Gloria, Magdalena, Piotr, Robert, Roberta, Serwacy |
| Poland | 14 | May | Bończa, Bonifacy, Dobiesław, Jeremi, Jeremiasz, Wiktor, Wiktoriusz |
| Poland | 15 | May | Afanazy, Atanazy, Berta, Cecyliusz, Czcibora, Dionizja, Izydor, Jan, Nadzieja, Ruprecht, Strzeżysław, Zofia |
| Poland | 16 | May | Andrzej, Honorat, Jan Nepomucen, Jędrzej, Szymon, Trzebomysł, Ubald, Wieńczysław, Wiktorian |
| Poland | 17 | May | Bruno, Herakliusz, Paschalis, Sławomir, Torpet, Weronika, Wiktor, Wiktoriusz |
| Poland | 18 | May | Aleksander, Aleksandra, Alicja, Edwin, Eryk, Eryka, Feliks, Irina, Liboriusz, Myślibor, Wenancjusz |
| Poland | 19 | May | Augustyn, Celestyn, Iwo, Mikołaj, Pękosław, Piotr, Potencjana |
| Poland | 20 | May | Anastazy, Asteriusz, Bazyli, Bazylid, Bazylis, Bernardyn, Bernardyna, Bronimir, Iwo, Sawa, Teodor, Wiktoria |
| Poland | 21 | May | Donat, Donata, Jan, Kryspin, Przecława, Pudens, Tymoteusz, Walenty, Wiktor, Wiktoriusz |
| Poland | 22 | May | Emil, Helena, Jan, Julia, Krzesisława, Rita, Wiesław, Wiesława, Wisława |
| Poland | 23 | May | Budziwoj, Dezyderiusz, Dezydery, Emilia, Iwona, Jan, Leontyna, Michał, Symeon |
| Poland | 24 | May | Cieszysława, Estera, Jan, Joanna, Maria, Mokij, Wincenty, Zula, Zuzanna |
| Poland | 25 | May | Epifan, Grzegorz, Imisława, Maria Magdalena, Urban |
| Poland | 26 | May | Beda, Filip, Marianna, Paulina, Więcemił, Wilhelmina |
| Poland | 27 | May | Beda, Izydor, Jan, Juliusz, Lucjan, Magdalena, Radowit |
| Poland | 28 | May | Augustyn, German, Jaromir, Priam, Wiktor, Wiktoriusz, Wilhelm, Wrócimir |
| Poland | 29 | May | Bogusława, Maksymilian, Maria Magdalena, Teodor, Teodozja |
| Poland | 30 | May | Andonik, Feliks, Ferdynand, Joanna, Sulimir |
| Poland | 31 | May | Aniela, Bożysława, Ernesta, Ernestyna, Feliks, Petronela, Petronia, Petroniusz, Teodor |
