Arm's name day is March 28 in Estonia.
Arm is a distinctive name with roots in Armenian naming traditions, often derived from longer names signifying strength or a limb. It’s rarely found in the USA’s top name lists but appears within Armenian communities and is more common in Armenia and Estonia. The name’s origin relates to the Armenian word for ‘shoulder’ or ‘limb,’ symbolizing resilience. It’s predominantly masculine, evoking a sense of groundedness and capability. Arm possesses a modern simplicity despite its historical background, and its overall tone is strong and dependable.
| Country | Day | Month | Names |
 Latvia | 10 | January | Dorisa, Karmena, Tatjana |
 Spain | 23 | January | Alberto, Ildefonso, Alberta, Armando, María Paz, Xenia |
 USA | 28 | January | Carlotta, Charleen, Charlene, Charlotta, Charlotte, Charmaine, Manfred |
 Czechia | 4 | February | Jarmila |
 Estonia | 4 | February | Armiida, Arma, Armi, Miida, Meida |
 Finland | 4 | February | Armi, Ronja, Mio |
| Estonia | 18 | February | Karme, Karmen, Karita, Rita |
| Estonia | 1 | March | Albo, Albin, Alvin, Armin |
| Estonia | 6 | March | Tarmo, Tarmu |
| Finland | 6 | March | Tarmo, Rolf |
 Lithuania | 12 | March | Darmante, Galvirdas, Grigalius |
| Lithuania | 14 | March | Darmantas, Karigaile, Matilda |
| Finland | 28 | March | Armas |
| Estonia | 31 | March | Irmgard, Irma, Irmi, Hermi, Härmi |
| USA | 7 | April | Armand, Armanda, Armando, Armin, Armon, Erma, Herman, Herminia, Hermione, Irma |
 Romania | 11 | April | Antipa, Calinic, Farmutie |
| Latvia | 20 | April | Amula, Armands, Mirta, Ziedite |
| Latvia | 22 | April | Armanda, Armands, Usins, Vitalijs |
 Slovakia | 28 | April | Jarmila |
| Lithuania | 29 | April | Augustinas, Indre, Rita, Tarmantas |
 Hungary | 10 | May | Ármin, Pálma |
| Latvia | 11 | May | Karmena, Manfreds, Milda |
 Austria | 2 | June | Armin, Erasmus, Marcel, Petrus |
| Czechia | 2 | June | Jarmil |
| Hungary | 2 | June | Kármen, Anita |
| Finland | 26 | June | Jarmo, Jorma, Jarkko, Jarno, Jere, Jeremias |
| Estonia | 12 | July | Hermann, Herman, Armand, Hermo, Härmo, Härm, Härmel |
| Spain | 15 | July | Carmelo, Carmela, Hilario, Hilaria, Fausto |
 Croatia | 16 | July | Gospa Karmelska, Karmela |
| Spain | 16 | July | Carmen, Marcelina, Generosa |
| USA | 16 | July | Carmel, Carmela, Carmelo, Carmen, Shelby, Sherman, Sherwood |
| Romania | 28 | July | Nicanor, Parmena, Prohor, Timon |
| Latvia | 1 | August | Albina, Albins, Dags, Jarmuts, Spekonis |
 France | 16 | August | Armel, Roch |
| Finland | 23 | August | Signe, Varma |
| Latvia | 29 | August | Aiga, Aigars, Armins, Vismants |
| Lithuania | 13 | September | Barmantas, Barvyde, Mangailis |
| Croatia | 17 | September | Robert Belarmin, Rane sv. Franje |
 Italy | 17 | September | Roberto Bellarmino |
| USA | 29 | September | Carmichael, Mia, Micaela, Micah, Michael, Michaela, Micheal, Michele, Micheline, Michelle, Mickey, Miguel, Mikaela, Mikala, Mikayla, Mike, Mikel, Mitch, Mitchel, Mitchell |
| Estonia | 10 | October | Karmo, Varmo, Võso |
| Austria | 24 | October | Alois, Aloisia, Anton, Armella |
| Latvia | 5 | December | Klaudija, Klaudijs, Sabine, Sarma, Sarmite |
| Latvia | 9 | December | Joachims, Jukums, Sarmite, Tabita |
| Latvia | 18 | December | Jordisa, Klinta, Kristaps, Sarmis |
| Latvia | 19 | December | Jordisa, Lelde, Minjona, Sarmis |
| France | 23 | December | Armand |