Of Greek origin.
Short form of the names Theodora and Dorothea.
Other forms of the name are: Tea, Dora, Dolly, Tia, Doretta, Dorothy, Thia, Ditte.
Masculine forms of the name are: Theo, Theodore.
Thea is commonly referred in the pop culture: main character in R. Stead’s novel “First Light”, protagonist in W. Cather’s “Song of the Lark” and in C. Greenman’s “Hooked”, etc.
Thea is a popular name in Norway.