Thea: Name day
Name Day List: Thea
Name Day List - similar names (Thea)
| Country | Day | Month | Names |
 USA | 2 | February | Aleta, Aletha, Alethea, Alida, Alita, Lita |
 Austria | 6 | February | Dorothea, Doris, Paul |
 Denmark | 6 | February | Dorothea |
 Germany | 6 | February | Dorothea |
| USA | 6 | February | Amanda, Dolly, Dora, Doreen, Dorothea, Dorothy, Dorthy, Dottie, Manda, Mandi, Mandy, Ron, Rona, Ronald, Ronalda, Ronaldo, Ronnie, Titus |
| USA | 18 | April | Anthea, Ayana, Ayanna, Warner, Werner |
 Greece | 5 | June | Dorotheos, Dorothea, Dorothy, Selene |
 Ukraine | 5 | June | Dorothea, Dora, Dorothy, Ihor |
| Austria | 25 | June | Dorothea, Eleonora, Ella |
Estonia 
Norway