Mariann: Name day
Name Day List: Mariann
Name Day List - similar names (Mariann)
| Country | Day | Month | Names |
 Ukraine | 16 | February | Marianna, Theodore |
 Italy | 18 | February | Marianna, Severa |
 Greece | 28 | February | Marianna, Kyra |
 Sweden | 4 | April | Marianne, Marlene |
 Poland | 26 | May | Beda, Filip, Marianna, Paulina, Więcemił, Wilhelmina |
| Poland | 2 | June | Efrem, Erazm, Eugeniusz, Marcelin, Maria, Marianna, Mikołaj, Nicefor, Piotr, Racisław |
 France | 9 | July | Amandine, Hermine, Iphigénie, Marianne |
 Finland | 15 | August | Marjatta, Marja, Jaana, Marianna, Marianne, Marita, Maritta, Marjaana, Marjo, Marjukka, Marjut, Jatta, Marju |
 Slovakia | 7 | September | Marianna |
 Latvia | 20 | September | Guntra, Marianna |
 Hungary | 1 | November | Marianna |
Estonia 
Norway