| Country | Day | Month | Names |
 Poland | 13 | March | Bożena, Ernest, Ernestyn, Kasjan, Krystyna, Marek, Roderyk, Rodryg, Rodryk, Trzebisław |
| Poland | 24 | March | Dziersława, Dzierżysława, Gabor, Gabriel, Marek, Sewer, Sofroniusz, Szymon |
| Poland | 11 | April | Filip, Herman, Jaromir, Leon, Marek |
 Czechia | 25 | April | Marek |
 Estonia | 25 | April | Markus, Margus, Margo, Marko, Marek, Mark |
| Poland | 25 | April | Jarosław, Marek, Wasyl |
 Slovakia | 25 | April | Marek |
| Poland | 8 | May | Dezyderia, Ilza, Marek, Michał, Piotr, Stanisław |
| Poland | 18 | June | Efrem, Elżbieta, Gerwazy, Leonia, Marek, Marina, Paula |
| Poland | 7 | September | Domasława, Domisława, Marek, Melchior, Regina, Rena, Ryszard |
| Poland | 28 | September | Jan, Laurencjusz, Luba, Lubosza, Marek, Nikita, Salomon, Sylwin, Wacław, Wacława, Wawrzyniec, Więcesław |
| Poland | 7 | October | Amalia, Justyna, Marek, Maria, Rościsława, Stefan, Tekla |
| Poland | 16 | November | Aureliusz, Dionizy, Edmund, Gertruda, Leon, Marek, Maria, Niedamir, Otomar, Paweł, Piotr |
| Poland | 22 | November | Cecylia, Marek, Maur, Wszemiła |
Latvia