The name day for Aina is observed on May 10 in both Estonia and Finland, June 13 in Sweden, June 27 in Norway, and October 8 in Latvia.
Aina is a classic feminine name with diverse origins, notably stemming from Finnish where it means "always" or "everlasting," and Catalan traditions. It maintains a low profile in the United States, often used within communities with ties to Northern Europe, but historically it links back to classic European naming conventions. The name’s worldwide identity is firmly female, reflected across Scandinavian and Baltic cultures. Aina conveys an elegant and soft mood, suggesting refined beauty and quiet assurance. This rare name choice offers a sophisticated balance between cultural depth and phonetic simplicity.
| Country | Day | Month | Names |
 USA | 12 | January | Alain, Alaina, Alan, Alana, Alanna, Alayna, Allan, Allen, Allena, Lana, Lanna |
 Finland | 8 | February | Laina |
| Finland | 17 | February | Väinö, Väinämö, Karita, Rita |
 Lithuania | 4 | March | Daina, Daugvydas, Kazimieras, Vaclava |
 Estonia | 11 | March | Ain, Ainar, Aigar, Innar, Inno |
 Russia | 31 | May | Alexandra, Faina, Julia |
 Latvia | 13 | June | Ainars, Tautvaldis, Tobijs, Uva, Zigfrids, Zigrids |
| USA | 23 | June | Audra, Audrey, Dashawn, Deshawn, Elton, Ethel, Josiah, Josias, Shaina, Shania, Shaun, Shauna, Shawn, Shawna, Shayna, Shayne, Shonda |
| Lithuania | 10 | July | Amalija, Eirime, Gilvainas |
| Estonia | 15 | July | Ragne, Raina, Raine, Raini |
| Latvia | 17 | July | Ainars, Aleksejs, Aleksis |
| Estonia | 6 | August | Laine, Laina, Lainela, Laini, Laive, Laivi |
| Lithuania | 8 | August | Daina, Domas, Dominykas, Elidijus, Gustavas, Taulgirdas |
 Austria | 18 | August | Claudia, Helena, Rainaki |
| USA | 18 | August | Aileen, Eileen, Elaina, Elaine, Eleanor, Elena, Eliana, Ella, Elle, Ellen, Ellie, Helen, Helena, Iliana, Lena, Leonora, Nell, Nellie, Nelly |
| USA | 7 | September | Raegan, Raina, Rana, Rani, Reagan, Regan, Regina, Regine, Yale |
| Finland | 13 | October | Taija, Taina, Tanja |
| Latvia | 23 | October | Daina, Dainis, Severins |
 Bulgaria | 8 | November | Angel, Angelina, Arhangel, Gavrail, Gavril, Emil, Emilia, Emiliana, Mihaela, Mihail, Ognyan, Ognyana, Plamen, Plamena, Rada, Radka, Radko, Rafail, Raia, Raika, Raina, Rangel, Emiliya, Emiliyana, Emiliyan, Lina, Mila, Milen, Milyo, Mihaela, Mihail, Radivoy, Radoslav, Radoslava, Radostin, Radostina, Raiko, Raycho, Rangel, Rafail, Raya, Rusi |
| Lithuania | 14 | December | Alfredas, Kintvile, Tarvainas |
| Lithuania | 29 | December | Gaja, Gentvainas, Teofile |
Sweden 
Norway