Marg's name day is January 18 in Croatia.
In the USA, "Marg" is rarely seen as a formal given name, usually serving as a concise nickname for longer female names. Its inherent meaning and origin are inherited from the traditional names it shortens, often relating to ancient terms for precious gems. The tone associated with "Marg" is typically familiar, straightforward, and slightly vintage, suggesting ease of address. Gender classification globally remains firmly within the female category due to its recognized lineage. It avoids strong connotations of being either highly modern or overly romantic, settling into a comfortable middle ground.
| Country | Day | Month | Names |
 Austria | 18 | January | Margitta, Ulfried, Uwe |
 Norway | 19 | January | Margunn, Marius |
 Greece | 25 | January | Grigorios, Gregory, Margarita |
 Lithuania | 22 | February | Darvydas, Elvinas, Gintaute, Margarita |
 Spain | 22 | February | Margarita, Leonor |
 Italy | 23 | February | Margherita da Cortona |
| Lithuania | 25 | February | Margiris, Rasa, Regimantas, Viktoras |
 Ukraine | 27 | February | Margaret |
 Latvia | 8 | March | Dagmara, Marga, Margita |
| Lithuania | 10 | April | Agna, Apolonijus, Margarita, Mintautas |
 Bulgaria | 12 | April | Vencislav, Vencislava, Violeta, Varban, Girgin, Girgina, Dilyan, Dilyana, Zdravka, Zdravko, Latinka, Lilyana, Margarita, Nevena, Roza, Rosen, Rosica, Trendafil, Trendafilka, Tsvetan, Tsveta, Tsvetanka, Tsviatko, Tseno, Stanislav, Stanislava |
| Latvia | 21 | April | Anastasija, Margers, Margonis, Nilola |
 Estonia | 25 | April | Markus, Margus, Margo, Marko, Marek, Mark |
| Latvia | 5 | June | Igors, Ingvars, Margods, Margots |
 Croatia | 10 | June | Margareta, Dijana, Bl. Ivan Dominici |
 Hungary | 10 | June | Margit, Gréta |
| Lithuania | 10 | June | Galindas, Margarita, Vingaile, Zybartas |
 Slovakia | 10 | June | Margaréta |
 USA | 10 | June | Daisy, Greta, Gretchen, Madge, Maggie, Margaret, Margarita, Margot, Marguerite, Marjorie, Meagan, Meg, Megan, Meghan, Peggy, Rita |
 Sweden | 15 | June | Margit, Margot |
| Lithuania | 12 | July | Izabele, Margiris, Vyliaude |
 Denmark | 13 | July | Margrethe |
| Estonia | 13 | July | Margareeta, Margit, Mareta, Maret, Marita, Marit, Marge, Mare, Meeta, Greta, Grete, Kreet, Kreeta, Reet, Reeda |
| Latvia | 13 | July | Alda, Margarita, Margrieta, Mariska, Perle |
| Slovakia | 13 | July | Margita |
| Austria | 20 | July | Apollinaris, Bernhard, Margaretha |
 Finland | 20 | July | Marketta, Maarit, Maaret, Margareeta, Reeta, Reetta |
 Germany | 20 | July | Margarete |
| Norway | 20 | July | Margareta, Margit, Marit |
| Sweden | 20 | July | Greta, Margareta |
| Latvia | 22 | July | Margita, Marija, Marika, Marina, Marisandra |
 Russia | 30 | July | Margarita, Marina |
| Norway | 15 | August | Margot, Marielle, Mary |
| Greece | 1 | September | Simeon, Ourania, Penelope, Joshua, Mando, Clea, Aspasia, Antigoni, Margaret, Athina |
| Austria | 16 | October | Gallus, Hedwig, Margareta |
| Croatia | 16 | October | Margareta Marija Alacoque |
| Lithuania | 16 | October | Ambraziejus, Dovalde, Gutautas, Jadvyga, Margarita |
| Spain | 16 | October | Margarita, María Alacoque |
| Norway | 25 | October | Margrete, Merete, Märtha |
| Austria | 2 | November | Angela, Margarethe, Tobias |
| Austria | 16 | November | Margareta, Otmar |
| Croatia | 16 | November | Margareta Škotska kr. |
 France | 16 | November | Gertrude, Marguerite, Mégane |
| Italy | 16 | November | Margherita di Scozia |
| Spain | 16 | November | Edmundo, Margarita |