Marc's name day is recognized and celebrated on April 25th in multiple countries, specifically Bulgaria, France, and the USA.
Marc is the European variant highly recognizable within the USA, often peaking in popularity during the latter half of the 20th century. Historically, this name derives from a revered ancient Roman praenomen, linking it directly to the Roman god of war. Consequently, its inherent meaning centers on concepts of strength, defense, and martial prowess. The name conveys a sophisticated, strong, and decisively classic mood, benefitting from its clean, four-letter structure. Globally, Marc is strictly identified as a male given name, maintaining a clear masculine classification across various countries. This combination of powerful origin and elegant simplicity ensures its enduring appeal.
| Country | Day | Month | Names |
 Hungary | 9 | January | Marcell |
 Lithuania | 9 | January | Algis, Bazile, Gabija, Marcijona |
 Poland | 9 | January | Antoni, Bazylissa, Borzymir, Julian, Julianna, Marcelina, Marcjanna |
 Spain | 10 | January | Gonzalo, Marciano, Alda, Aldo, Vilma, Hortensia |
| Lithuania | 11 | January | Audrius, Marcijonas, Stefanija, Vilne |
| Spain | 15 | January | Mauro, Raquel, Marcelo |
 Austria | 16 | January | Dietwald, Marcellus, Tilman |
 Croatia | 16 | January | Marcel, Oton, Mislav |
 Denmark | 16 | January | Marcellus |
 France | 16 | January | Marcel |
| Lithuania | 16 | January | Marcelis, Norgailas, Norgaile |
| Poland | 16 | January | Marcel, Waleriusz, Włodzimierz |
 Italy | 17 | January | Marcello I |
| Poland | 21 | January | Agnieszka, Epifani, Jarosław, Jarosława, Jerosława, Marcela |
| Poland | 30 | January | Adelajda, Feliks, Gerard, Gerarda, Gerhard, Hiacynta, Maciej, Marcin, Martyna, Sebastian |
| Austria | 31 | January | Johannes, Marcella |
| Croatia | 31 | January | Ivan, Marcela, Julije |
| France | 31 | January | Marcelle |
 Germany | 31 | January | Marcella |
| Hungary | 31 | January | Marcella |
| Lithuania | 31 | January | Astra, Budvile, Marcele, Skirmantas |
| Poland | 31 | January | Cyrus, Euzebiusz, Jan, Ksawery, Ludwik, Marceli, Marcelin, Marcelina, Piotr, Spycigniew, Wirgiliusz |
| Poland | 19 | February | Arnold, Arnolf, Bądzisława, Gabin, Henryk, Konrad, Konrada, Leoncjusz, Manswet, Marceli |
| Lithuania | 2 | March | Dautara, Eitautas, Elena, Marcelinas |
| Poland | 10 | March | Aleksander, Bożysław, Cyprian, Makary, Marceli, Porfirion |
| Spain | 19 | March | José, Marcos, Josefa |
| France | 6 | April | Marcellin |
| Poland | 9 | April | Dobrosława, Dymitr, Maja, Marceli, Matron |
| Austria | 19 | April | Gerold, Leo, Marcel |
| Croatia | 20 | April | Janja, Marcijan |
 Czechia | 20 | April | Marcela |
| Lithuania | 20 | April | Agne, Eisvyde, Gostautas, Marcijonas |
 Slovakia | 20 | April | Marcel |
| Denmark | 25 | April | Marcus |
| Italy | 25 | April | Marco |
 Norway | 25 | April | Marcus, Mark, Markus |
| Spain | 25 | April | Antonio, Antonieta, Marco, Marcia, Erminío, Herminío |
| Croatia | 26 | April | Kleto, Marcelin, Višnja |
| Italy | 26 | April | Marcellino |
| Poland | 26 | April | Artemon, Klaudiusz, Klet, Marcelin, Marcelina, Maria, Marzena, Spycimir |
| Spain | 26 | April | Basilio, Marcelino, Engracia, Isidoro |
 USA | 26 | April | Clarence, DeMarco, Demarcus, Demario |
| Austria | 2 | June | Armin, Erasmus, Marcel, Petrus |
| Croatia | 2 | June | Marcelin, Petar, Bl. Sadok, Eugen |
| Denmark | 2 | June | Marcellinus |
| Poland | 2 | June | Efrem, Erazm, Eugeniusz, Marcelin, Maria, Marianna, Mikołaj, Nicefor, Piotr, Racisław |
| Spain | 2 | June | Erasmo, Marcelino, Blandina, Edelmira, Ausonia |
| Lithuania | 5 | June | Kantautas, Kantvyde, Marce |
| Spain | 5 | June | Eloisa, Marcia, Igor, Valeria, Nicanor, Doroteo, Bonifacio |
| Poland | 17 | June | Adolf, Adolfa, Adolfina, Agnieszka, Alf, Drogomysł, Franciszek, Laura, Marcjan, Radomił, Rainer, Wolmar |
| Croatia | 18 | June | Marko, Marcelijan, Ljubomir |
| Spain | 18 | June | Justo, Marceliano, Marina |
| Spain | 28 | June | Marcela |
| Poland | 30 | June | Alpinian, Ciechosława, Cyryl, Emilia, Lucyna, Marcjal |
| Spain | 30 | June | Marcial, Leonila |
| Poland | 14 | July | Bonawentura, Damian, Dobrogost, Franciszek, Izabela, Kosma, Marceli, Marcelin, Marcelina, Stella, Ulrych, Ulryk, Ulryka |
| Spain | 16 | July | Carmen, Marcelina, Generosa |
| France | 17 | July | Arlette, Charlotte, Marcelline |
| Poland | 17 | July | Aleksander, Aleksy, Andrzej, Bogdan, Dzierżykraj, Januaria, Julietta, Leon, Marceli, Marcelina, Maria Magdalena |
| Poland | 28 | July | Innocenta, Innocenty, Marcela, Pantaleon, Samson, Świętomir, Wiktor, Wiktoriusz |
 Ukraine | 1 | August | Marcel, Salome |
| Hungary | 14 | August | Marcell |
 Greece | 15 | August | Mary, Marcy, Maria, Despina, Marios, Panagiotis, Panagiota, Simela, Crystal |
| Slovakia | 15 | August | Marcela |
| Italy | 7 | October | Marco |
| Poland | 8 | October | Artemon, Bryda, Brygida, Demetriusz, Laurencja, Marcin, Pelagia, Pelagiusz, Symeon, Wojsława |
| Czechia | 12 | October | Marcel |
| Poland | 24 | October | Antoni, Boleczest, Filip, Hortensja, Marcin, Rafaela, Rafał, Salomon |
| Croatia | 30 | October | Marcel, Marojko, Lukan, German |
 Latvia | 10 | November | Erasts, Marcis, Martins |
| Poland | 11 | November | Anastazja, Bartłomiej, Maciej, Marcin, Prot, Spycisław, Teodor |
| Poland | 12 | November | Cibor, Czcibor, Izaak, Jonasz, Jozafat, Konradyn, Konradyna, Krystyn, Marcin, Renat, Renata, Witold, Witołd, Witolda |
| Italy | 28 | November | Giacomo della Marca |
| Poland | 7 | December | Agaton, Ambroży, Marcin, Ninomysł |
| Poland | 29 | December | Domawit, Dominik, Gosław, Jonatan, Marcin, Tomasz, Trofim |
Bulgaria