Dorthea \d(o)-rthea, dor-thea\ as a girl's name is a variant of Dorothy (Greek), and the meaning of Dorthea is "gift of God".
The baby name Dorthea sounds like Dortha and Dorothea. Other similar baby names are Dorea, Dorthy, Dorothee, Dorotha, Dorotea, Doritha and Dorsea.