| Country | Day | Month | Names |
 Austria | 15 | January | Arnold, Maurus, Romedius |
 Poland | 19 | February | Arnold, Arnolf, Bądzisława, Gabin, Henryk, Konrad, Konrada, Leoncjusz, Manswet, Marceli |
 Czechia | 30 | March | Arnošt |
 Hungary | 18 | June | Arnold, Levente |
 Finland | 26 | June | Jarmo, Jorma, Jarkko, Jarno, Jere, Jeremias |
 Lithuania | 8 | July | Arnoldas, Elzbieta, Elze, Vaitautas, Valmante, Virga, Virginija |
 Croatia | 18 | July | Fridrik, Dalibor, Arnold, Natko |
 Denmark | 18 | July | Arnolphus |
| Poland | 18 | July | Arnold, Arnolf, Erwin, Erwina, Kamil, Karolina, Robert, Roberta, Szymon, Unisław, Wespazjan |
 Sweden | 4 | August | Arne, Arnold |
 Estonia | 20 | August | Bernhard, Benno, Pearn, Pearu, Päärn, Pääro, Pärn, Pärno |
 USA | 10 | September | Anabel, Annabel, Annabella, Annabelle, Arnie, Arnold, Arnolda, Arnoldo, Pulcheria |
 Slovakia | 1 | October | Arnold |
| Poland | 9 | October | Arnold, Arnolf, Atanazja, Bogdan, Dionizjusz, Dionizy, Jan, Ludwik, Przedpełk |
| Finland | 16 | November | Aarne, Aarno, Aarni |
| Denmark | 1 | December | Arnold |
 Latvia | 1 | December | Arnolds, Arvaldis |
 Norway | 1 | December | Arnljot, Arnold, Arnt |
