Austyn: Name day
Name Day List: Austyn
| Country | Day | Month | Names |
 USA | 28 | August | Agustin, August, Augusta, Augustina, Austen, Austin, Austina, Austyn, Gus, Gustava, Gustavo |
Name Day List - similar names (Austyn)
| Country | Day | Month | Names |
 Poland | 15 | February | Faustyn, Georgia, Georgina, Jordan, Jowita, Józef, Klaudiusz, Przybyrad, Sewer |
| Poland | 29 | July | Beatrice, Beatrycze, Beatryks, Cierpisław, Faustyn, Konstantyn, Lucylla, Maria, Marta, Olaf, Serafina, Urban |
| Poland | 20 | September | Dionizy, Eustachiusz, Eustachy, Fausta, Faustyna, Filipina, Irena, Oleg, Ostap, Sozant |