| Country | Day | Month | Names |
 Finland | 14 | January | Sakari, Saku, Sasu |
 Poland | 5 | February | Adelajda, Aga, Agata, Albin, Izydor, Jakub, Jan, Justynian, Paweł, Piotr, Strzeżysława |
| Poland | 14 | March | Bożeciecha, Jakub, Leon, Matylda, Mechtylda, Michał |
| Poland | 3 | April | Antoni, Cieszygor, Jakub, Pankracy, Ryszard |
| Poland | 17 | April | Anicet, Innocenta, Innocenty, Jakub, Józef, Klara, Radociech, Robert, Roberta, Rudolf, Rudolfa, Rudolfina, Stefan |
| Poland | 30 | April | Bartłomiej, Chwalisława, Eutropiusz, Jakub, Katarzyna, Lilla, Marian |
| Poland | 1 | May | Aniela, Filip, Jakub, Jeremi, Jeremiasz, Józef, Lubomir |
| Poland | 1 | June | Alfons, Alfonsyna, Bernard, Fortunat, Gracjana, Hortensjusz, Jakub, Konrad, Konrada, Magdalena, Nikodem, Świętopełk, Symeon |
 Croatia | 12 | June | Ivan Fakundo, Bosiljko, Nino |
| Poland | 5 | July | Antoni, Bartłomiej, Filomena, Jakub, Karolina, Michał, Przybywoj, Szarlota, Wilhelm |
 Bulgaria | 6 | July | Avakum, Valentin, Valentina, Valya, Valia |
| Poland | 13 | July | Ernest, Ernestyn, Eugeniusz, Irwin, Jakub, Justyna, Małgorzata, Radomiła |
 Czechia | 25 | July | Jakub |
| Poland | 25 | July | Jakub, Krzysztof, Nieznamir, Sławosz, Walentyna |
 Slovakia | 25 | July | Jakub |
| Poland | 6 | August | Felicysym, Jakub, January, Sława, Stefan, Sykstus, Wincenty |
| Poland | 28 | November | Gościrad, Grzegorz, Jakub, Lesław, Lesława, Rufin, Zdzisław |
