Rein: Name day
Name Day List: Rein
Name Day List - similar names (Rein)
| Country | Day | Month | Names |
 Denmark | 12 | January | Reinhold |
 Latvia | 12 | January | Reinholds, Reinis, Ringolds |
 Norway | 12 | January | Reinert, Reinhard |
 Poland | 12 | January | Antoni, Arkadiusz, Arkady, Benedykt, Czech, Czechasz, Czechoń, Czesław, Czesława, Ernest, Ernestyn, Greta, Reinhold, Tycjan |
 Spain | 9 | February | Donato, Sabino, Reinaldo, Apolonia |
 Austria | 7 | March | Felicitas, Perpetua, Reinhard |
| Austria | 24 | June | Johannes, Reingard |
 Finland | 16 | July | Reino, Rene |
 Sweden | 16 | July | Reine, Reinhold |
| Spain | 22 | August | Reina |
 Estonia | 7 | September | Regiina, Reina |
 France | 7 | September | Reine |
| Estonia | 1 | October | Reinhard, Rainer, Rain, Raino, Ragnar, Rauno |
| Latvia | 2 | October | Ilma, Reinhards, Skaidris |
| Austria | 5 | December | Anno, Gerald, Niels, Reinhard |
| Austria | 9 | December | Liborius, Reinmar, Valerie |