Franciszek has name days observed in Poland on February 17, March 2, April 2, May 11, June 4, June 17, June 20, July 14, August 21, September 16, September 17, September 25, September 29, October 4, October 10, October 29, November 24, and December 3.
Franciszek is a traditional, strongly masculine Polish name found primarily within Polish-American communities in the USA. Historically, its presence in the US documents immigration history, though it often appears Americanized to Frank. Originating from the Late Latin Franciscus, the name fundamentally means "Frenchman" or is interpreted as "free one." The name projects a distinguished, robust, and classical mood, reflecting deep Central European tradition. While uncommon globally, it functions as a strong ethnic marker. This robust identifier maintains its historical significance wherever Polish culture thrives.
| Country | Day | Month | Names |
 Poland | 17 | February | Donat, Donata, Franciszek, Izydor, Julian, Konstanty, Łukasz, Niegomir, Sylwin, Zbigniew, Zbyszko |
| Poland | 2 | March | Absalon, Franciszek, Halszka, Helena, Henryk, Januaria, Krzysztof, Lew, Michał, Paweł, Piotr, Radosław, Symplicjusz |
| Poland | 2 | April | Franciszek, Sądomir, Urban, Władysław, Władysława |
| Poland | 11 | May | Adalbert, Benedykt, Filip, Franciszek, Iga, Ignacja, Ignacy, Lew, Lutogniew, Mamert, Mira, Żegota |
| Poland | 4 | June | Bazyliusz, Dacjan, Franciszek, Gościmił, Karol, Karp |
| Poland | 17 | June | Adolf, Adolfa, Adolfina, Agnieszka, Alf, Drogomysł, Franciszek, Laura, Marcjan, Radomił, Rainer, Wolmar |
| Poland | 20 | June | Bogna, Bogumiła, Bożena, Florentyna, Franciszek, Michał, Rafaela, Rafał, Sylwery |
| Poland | 14 | July | Bonawentura, Damian, Dobrogost, Franciszek, Izabela, Kosma, Marceli, Marcelin, Marcelina, Stella, Ulrych, Ulryk, Ulryka |
| Poland | 21 | August | Adolf, Adolfa, Adolfina, Alf, Bernard, Emilian, Filipina, Franciszek, Joanna, Kazimiera, Męcimir |
| Poland | 16 | September | Antym, Cyprian, Edda, Edyta, Eufemia, Eugenia, Franciszek, Jakobina, Kamila, Kornel, Lucja, Łucja, Sebastiana, Sędzisław, Wiktor, Wiktoriusz |
| Poland | 17 | September | Ariadna, Dezyderiusz, Drogosław, Franciszek, Hildegarda, Justyn, Justyna, Lambert, Lamberta, Narcyz, Teodora |
| Poland | 25 | September | Aureli, Aurelia, Aurelian, Franciszek, Gaspar, Herkulan, Kamil, Kleofas, Kleopatra, Ładysław, Piotr, Rufus, Świętopełk, Wincenty, Władysław, Władysława, Włodzisław |
| Poland | 29 | September | Dadźbog, Franciszek, Michalina |
| Poland | 4 | October | Edwin, Franciszek, Konrad, Konrada, Manfred, Manfreda, Rozalia |
| Poland | 10 | October | Franciszek, German, Kalistrat, Lutomir, Paulin, Tomił |
| Poland | 29 | October | Euzebia, Franciszek, Longin, Longina, Lubogost, Narcyz, Teodor, Wioletta |
| Poland | 24 | November | Dobrosław, Emilia, Emma, Flora, Franciszek, Gerard, Gerarda, Gerhard, Jan, Mina, Pęcisław, Protazy |
| Poland | 3 | December | Franciszek, Kasjan, Ksawery, Lucjusz, Unimir |